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Explore 157+ free online tools for AI, PDF, images, video, SEO and everyday tasks — from an AI paraphraser to a BMI calculator, ready to use with no sign-up.
157 Tools
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11 AI Tools
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11
AIFeatured
AI Article Writer
Create an outline and full draft from your brief with KitoTool AI. Edit the content, choose a title and export Markdown, HTML or TXT.
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AI
AIFeatured
AI Paraphraser
Rewrite with KitoTool AI or on-device processing in six modes. Compare both versions before copying or exporting.
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AI
AIFeatured
Remove Background
Remove an image background in your browser, review the edges, then download a transparent or colored PNG.
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Image
AIFeatured
Object & Watermark Remover
Brush or select an unwanted area, review the filled background, then download PNG, JPG or WebP. Image processing runs in your browser.
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Image
AIFeatured
AI Image Background Changer
Separate the subject, choose a white, colored, gradient or uploaded photo background, then position and check the composite before downloading.
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Image
AIFeatured
AI Image Sharpener
Sharpen a JPG, PNG or WebP image in your browser, double its width and height, and compare before and after.
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Image
AIFeatured
Audio to Text
Transcribe one audio file or microphone recording on your device. Edit text for copy or TXT; export original timed segments as SRT or VTT.
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Audio
AIFeatured
Automatic Video Subtitle Generator
Create subtitles from spoken video in your browser, review and edit each timed cue, then export SRT, VTT, TXT or a captioned video. Codec support depends on the browser.
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Video
AIFeatured
Text Summarizer
Summarize with KitoTool AI or local sentence extraction. Choose length and paragraph or bullet output; check sources in local mode.
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Text
AIFeatured
SEO Meta Generator
Create and edit titles and descriptions with KitoTool AI or local suggestions. Choose title variants, preview and export HTML tags.
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SEO
AIFeatured
KITO 10X — AI Office Sitcom
A Vietnamese interactive AI office sitcom: fictional task diaries, character dialogue and shareable episode report cards. No real-money transactions.
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Utility
All Free Tools
157Tools starting with A
12
Add Watermark to Images
Add text or logo watermarks to up to 20 images in your browser. Preview each image, adjust layers and download one result or the batch as a ZIP.
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Image
Age Calculator
Calculate age on any date in years, months and days. See total weeks, days, next birthdays and 1,000/10,000-day milestones; compare ages, save an image or print.
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Utility
AIFeatured
AI Article Writer
Create an outline and full draft from your brief with KitoTool AI. Edit the content, choose a title and export Markdown, HTML or TXT.
Use now
AI
AIFeatured
AI Image Background Changer
Separate the subject, choose a white, colored, gradient or uploaded photo background, then position and check the composite before downloading.
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Image
AIFeatured
AI Image Sharpener
Sharpen a JPG, PNG or WebP image in your browser, double its width and height, and compare before and after.
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Image
AIFeatured
AI Paraphraser
Rewrite with KitoTool AI or on-device processing in six modes. Compare both versions before copying or exporting.
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AI
Audio Cutter
Trim audio precisely with an interactive waveform, preview the selection and download the result.
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Audio
Audio Format Converter
Convert MP3, WAV, OGG, FLAC, M4A, AAC and OPUS locally in a modern browser.
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Audio
AIFeatured
Audio to Text
Transcribe one audio file or microphone recording on your device. Edit text for copy or TXT; export original timed segments as SRT or VTT.
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Audio
AIFeatured
Automatic Video Subtitle Generator
Create subtitles from spoken video in your browser, review and edit each timed cue, then export SRT, VTT, TXT or a captioned video. Codec support depends on the browser.
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Video
AVIF to JPG Converter
Convert AVIF to JPG when the destination requires JPG. Transparency becomes white and animated AVIF becomes a still image.
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Image
AVIF to PNG Converter
Convert AVIF to PNG when the destination requires PNG. Keep existing transparency and pixel dimensions; animated AVIF becomes one still image.
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Image
Tools starting with B
7
Backlink Checker
Check sourced backlink and referring domain metrics for a website. Available fields depend on the configured data provider.
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SEO
Barcode Generator
Enter a code or CSV list, validate the data and design labels in millimetres. Preview a full label sheet and export PNG, SVG, ZIP or PDF in your browser.
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Utility
Barcode Scanner
Scan 1D barcodes from an image or camera, check EAN/UPC digits, copy results and export a session CSV.
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Image
Base64 Encoder Decoder
Encode or decode UTF-8 text and supported images with Base64, then copy or download the result.
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Developer
Batch PDF Watermark
Add a text or PNG/JPG logo watermark to up to 20 PDFs, choose pages, preview the result, and download each PDF or a ZIP on your device.
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PDF
Blur Background
Select an area to keep sharp, blur the rest of the image, preview and download a JPG in your browser.
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Image
BMI Calculator
Calculate BMI from height and weight for adults aged 20 and over; see a reference weight category.
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Utility
Tools starting with C
9
Case Converter
Convert text to seven case styles, including uppercase, sentence case, camelCase, snake_case and kebab-case.
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Text
Character Counter
Count characters with and without whitespace, word groups, lines and UTF-8 bytes as you type; check a custom character limit.
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Text
Check My IP Address
See your public IP or look up an IP, URL or domain to check its ISP, ASN and approximate location.
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Utility
Color Palette
Build a five-color palette from one color, check contrast and export CSS, JSON, SVG or PNG.
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Developer
Compare Image Metadata
Compare readable metadata from two images side by side, with filters for different, missing and matching fields.
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Image
Convert Audio to MP3
Convert one browser-readable audio file to MP3 locally. Choose 128, 192 or 320 kb/s, preview the result and download it.
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Audio
Copy Metadata Between Images
Copy selected capture and authorship fields or an original EXIF block to a JPG, PNG or WebP target copy in the browser.
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Image
CSS JS Minifier
Minify CSS or JavaScript in your browser, compare sizes and test the result before using it.
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Developer
CV Builder Online
Create a CV from a sample or your own details, preview seven layouts, and print or save a PDF in your browser.
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Utility
Tools starting with D
2
Draw Music Online
Draw lines and shapes to make music online. Choose voices, key, scale and tempo, listen to your melody, then export WAV, MIDI or an editable project.
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Audio
Duplicate Line Remover
Deduplicate a pasted list while keeping first or last occurrences in their original order.
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Text
Tools starting with E
3
Email Extractor
Paste text and get a clean list of email addresses to copy or download as TXT. Remove repeats and review syntax warnings before using the list.
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Text
Excel to PDF Converter
Choose sheets from an XLSX, XLS or CSV, preview cell data and create a PDF table with paper and orientation settings.
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PDF
Extra Whitespace Remover
Tidy gaps in pasted text: collapse repeated spaces, replace tabs and reduce extra blank lines while keeping line breaks. Review the result, then copy or download TXT.
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Text
Tools starting with F
4
Facebook Font Generator
Preview 32 Unicode text styles and copy a short phrase for a Facebook post or bio.
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Social Media
Featured
Facebook Video Downloader
Check a public Facebook video or reel link and download an available SD or HD MP4.
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Social Media
Fake Data Generator
Generate sample records for testing. Choose fields and export JSON, CSV or SQL.
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Developer
Favicon Generator
Make PNG and ICO favicons from one image. Preview small sizes, then download the files and matching HTML links in a ZIP.
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Image
Tools starting with G
4
Gmail Dot Generator
Generate dotted spellings of a personal @gmail.com address. Copy up to 200 displayed variations; they reach the same inbox.
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Utility
Google Index Checker
Check whether a URL appears in a Google site: search. Use URL Inspection in Search Console for official verification.
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SEO
Google Keyword Rank Checker
Compare a domain against sampled Google Vietnam organic results for one keyword, with the matching URL, top 10 and browser history when a provider is configured.
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SEO
Gross to Net Calculator
Estimate monthly gross-to-net or net-to-gross salary in Vietnam with insurance and personal income tax rules applicable from July 2026.
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Utility
Tools starting with H
5
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-384 or SHA-512 from text and files to compare checksums.
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Developer
HEIC to JPG Converter
Convert HEIC photos to JPG, adjust quality, and preview the still image before downloading.
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Image
HEIC to PNG Converter
Convert HEIC photos to a still PNG, keep pixel dimensions, and preview the output before downloading.
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Image
Holiday Countdown
Count down to Christmas, New Year, Easter, Halloween and other US, UK or Australian holidays. Choose a market and time zone for a live local countdown.
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Utility
HTML Minifier
Minify HTML from pasted code or a file, compare byte sizes, and review the result before downloading.
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Developer
Tools starting with I
16
Image Adjuster
Adjust one JPG, PNG or WebP with light, color and sharpness controls. Compare before and after, then export PNG, JPG or WebP.
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Image
Image Color Picker
Pick a pixel from an image to read HEX, RGB, HSL and HSV. Review suggested color groups, save chosen colors and download CSS variables in your browser.
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Image
Featured
Image Compressor
Compress JPEG, PNG, WebP, GIF and SVG images online in batches of up to 30, with private on-device processing and WebP output.
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Image
Image Cropper
Crop one image with a free selection, preset ratio or pixel-sized area within the source image. Position the subject and download PNG, JPG or WebP.
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Image
Image Format Converter
Convert JPEG, PNG, WebP, GIF, SVG, AVIF, BMP and HEIC images with automatic source detection and six output format choices.
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Image
Image Metadata & EXIF Editor
Edit device, capture, authorship, description, software and GPS metadata in JPG, PNG or WebP without recompressing pixels or uploading the file.
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Image
Image Metadata & EXIF Remover
Remove EXIF, GPS or supported descriptive metadata from JPG, PNG and WebP copies in your browser without recompressing image data.
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Image
Image Metadata & EXIF Viewer
View camera, lens, capture settings, authorship, GPS, EXIF, XMP and IPTC metadata stored in an image directly in your browser.
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Image
Image Resizer
Resize JPEG, PNG, WebP, GIF and SVG images online with aspect-ratio lock, presets and PNG, JPEG or WebP output.
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Image
Image to Music
Turn JPG, PNG or WebP images into music using color, brightness and layout. Choose a scale, hear the melody and export WAV or MIDI in your browser.
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Audio
Image to PDF
Arrange JPG, PNG and WebP images as pages in one PDF. Set their order, page size, orientation, margins and JPEG quality, then check the download.
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PDF
Image to SVG
Adaptive raster tracing: compare vector, hybrid and embedded-image SVG by measured difference, complexity and file size.
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Image
Image to Text (OCR)
Extract editable text from an image with OCR, with support for Vietnamese, English and other available languages.
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Image
Image Upscaler
Enlarge one JPG, PNG or WebP image by 2×, 4× or 8× with browser image smoothing, compare the result and download PNG.
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Image
Instagram Downloader
View and download available photos or videos from public Instagram post and Reel links.
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Social Media
Internet Speed Test
Measure download speed in Mbps with about 5 MB of test data and view an estimated time for a 10 MB download.
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Utility
Tools starting with J
5
JPG Compressor
Recompress JPG/JPEG by quality or a per-image KB/MB limit; compare size and detail before downloading.
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Image
JPG to PDF
Arrange JPG images in order and create one PDF with an image on each page.
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PDF
JPG to PNG Converter
Convert JPG to PNG at the same pixel dimensions; conversion does not restore lost JPEG detail or add transparency.
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Image
JPG to WebP Converter
Convert JPG to WebP, adjust quality, compare file sizes and preview the result before downloading.
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Image
JSON Formatter
Format, validate and minify JSON in your browser. Review syntax errors and copy the result.
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Developer
Tools starting with K
3
Keyword Idea Generator
Generate 20 pattern-based phrase ideas from a seed topic in your browser; filter, remove, copy or export them. Search metrics are not included.
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SEO
AIFeatured
KITO 10X — AI Office Sitcom
A Vietnamese interactive AI office sitcom: fictional task diaries, character dialogue and shareable episode report cards. No real-money transactions.
Use now
Utility
KitoTool Share — Screen Sharing
Share a screen, chat and meet new friends in public rooms, or create a private room with a code and password. Up to 4 people, no account required.
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Video
Tools starting with L
4
Link Shortener
Create short HTTP or HTTPS links with an optional alias or password.
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Developer
Loan Amortization Calculator
Estimate monthly principal and interest payments at a fixed annual rate. Review the balance each month and the effect of extra principal payments.
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Utility
Lorem Ipsum Generator
Choose words, sentences or paragraphs and get ready-to-copy Lorem Ipsum for a layout. Set 1–100 units, then copy or download the plain text.
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Text
Lucky Wheel
Pick one random entry from 2–100 names, numbers or prizes; optionally remove the selected entry for the next spin.
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Utility
Tools starting with M
1Tools starting with N
2
Notepad
Take online notes for free with Notepad, with no login needed. Write and edit text, autosave on your device, share a snapshot and back up notes for later.
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Text
Number to Vietnamese Text
Write whole numbers and decimals with up to two places in Vietnamese words, with an optional whole-amount suffix.
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Utility
Tools starting with O
12AIFeatured
Object & Watermark Remover
Brush or select an unwanted area, review the filled background, then download PNG, JPG or WebP. Image processing runs in your browser.
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Image
Online Code Editor
Write, run and preview HTML, CSS and JavaScript online with syntax highlighting, browser console, local drafts and HTML download.
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Developer
Online File Comparison
Compare text, code and text-layer PDF files with side-by-side and unified views, line numbers, word highlights, search and difference navigation.
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Developer
Online File Virus Scanner
Calculate SHA-256 and inspect basic file risk signals locally, then query multi-engine VirusTotal reports with a user-provided API key and explicit upload consent.
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Utility
Online Keyboard Tester
Test keys on a physical keyboard and see which key positions the browser detects, including held keys, recent events and combinations.
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Utility
Online Markdown Editor
Write and edit Markdown online with real-time preview, file and workspace management, autosave, Markdown to HTML conversion and flexible export.
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Developer
Online PDF Editor
Edit PDF online by adding text, freehand drawings, signatures and highlights, then export a new PDF.
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PDF
Online QR Code Scanner
Scan a QR code from a screenshot, saved image or camera. Read the original result and domain before opening a link or copying its content.
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Image
Online Screen Recorder
Record a screen, app window or browser tab online. Capture supported system audio or microphone, preview and download the WebM video locally.
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Video
Online Word Document Editor
Open a DOCX, edit text and headings in your browser, then download a rebuilt DOCX with clear formatting limits.
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Text
Online ZIP Extractor
Open and extract ZIP files directly in the browser. Preview entries, extract selected files, preserve folders and unlock password-protected ZIP archives without uploading data.
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Utility
Organize PDF Pages
Preview thumbnails, drag to reorder, rotate and delete PDF pages, undo changes and export one new PDF in your browser.
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PDF
Tools starting with P
17
Page Speed Test
Test one public URL on mobile or desktop with PageSpeed Insights. Review Lighthouse scores, available CrUX metrics and diagnostics.
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SEO
Password Checker
Check a password against simple rules and generate a random password in your browser.
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Developer
PDF Compress
Free PDF Compress tool to reduce PDF file size while maintaining best possible quality.
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PDF
PDF Merge
Combine PDF files into one document and arrange their order before downloading.
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PDF
PDF Split
Select individual pages or a range from one PDF and download one new PDF with those pages in source order.
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PDF
PDF to Excel
Select PDF pages, preview extracted rows and columns, and download an editable XLSX workbook. File contents are processed on your device.
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PDF
PDF to Image
Convert selected PDF pages to JPG, PNG or WebP images, check each result and download images separately or as a ZIP.
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PDF
PDF to JPG
Export selected PDF pages as JPG images. Adjust resolution and quality, then check and download each image or a ZIP.
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PDF
PDF to PNG
Export selected PDF pages as PNG images that preserve rendered pixels. Check text and image size before download.
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PDF
PDF to PowerPoint
Turn selected PDF pages into image slides in a PPTX. Choose page ranges, slide ratio and image detail, then check the result.
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PDF
PDF to Word
Extract text from selected PDF pages into an editable DOCX, HTML or TXT file in your browser.
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PDF
Photo Collage Maker
Combine 2 to 9 photos in one collage. Choose a layout, frame ratio, spacing and background color, position each photo, then download a PNG, JPG or WebP image in your browser.
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Image
Plagiarism Checker
Review matches against common English phrases and repeated passages in your text. This local check does not search the web.
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Text
PNG Compressor
Compress PNG files in your browser with lossless optimization or palette reduction; compare transparency and size before download.
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Image
PNG to JPG Converter
Convert PNG images to JPG online with a white transparency background and adjustable JPG quality.
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Image
PNG to PDF
Arrange PNG images in one PDF, one image per page. Transparent areas become white and images are re-encoded as JPEG.
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PDF
PNG to WebP Converter
Convert PNG to WebP, keep transparency when present, adjust quality, and compare the output size before downloading.
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Image
Tools starting with Q
1Tools starting with R
4AIFeatured
Remove Background
Remove an image background in your browser, review the edges, then download a transparent or colored PNG.
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Image
Remove Duplicate Lines
Remove duplicate lines from pasted text or TXT/CSV files and sort the retained lines by text, number or length.
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Text
Remove Line Breaks
Join hard-wrapped lines in pasted text while preserving blank-line paragraph breaks, or make one line.
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Text
Robots.txt Generator
Draft a robots.txt file with Allow and Disallow rules for the User-agent * group and an optional sitemap URL; review before publishing.
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SEO
Tools starting with S
7
Scanned PDF OCR
Recognize Vietnamese and English text in scanned PDF pages; export a searchable PDF, editable DOCX or TXT in your browser.
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PDF
Schema Markup Generator
Generate draft JSON-LD for six structured data types and test the code before publishing.
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SEO
AIFeatured
SEO Meta Generator
Create and edit titles and descriptions with KitoTool AI or local suggestions. Choose title variants, preview and export HTML tags.
Use now
SEO
SERP Preview
Preview a draft title, description and URL in a desktop or mobile search-result mock-up; actual Google display may differ.
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SEO
Sign PDF Online
Draw, type or upload a signature, place it on a PDF and download a signed copy.
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PDF
Social Media ID Extractor
Read identifiers present in Facebook, TikTok, YouTube and Instagram URLs; distinguish numeric IDs from usernames and codes.
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Social Media
SVG to Code Converter
Paste SVG markup or choose an .svg file, then copy HTML, inline SVG, CSS or a JSX snippet to review.
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Developer
Tools starting with T
15
Temperature Converter
Convert Celsius, Fahrenheit and Kelvin by entering a value in any field. View formulas and reference points.
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Utility
Text Cleaner
Paste messy text and choose what to clean: extra spaces, blank lines, leading bullets, links or simple HTML tags. Review the result, then copy or download TXT.
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Text
Text Compare
Paste original and revised text to review additions and removals, then copy or download a marked TXT version.
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Text
Text Document Generator
Create DOCX, PDF, Markdown, HTML or TXT from typed or pasted text.
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Text
Text Extractor
Paste text and extract numbers, hashtags, @mentions, quoted text or lines with a keyword, then copy or download TXT.
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Text
Text Joiner
Paste one item per line, choose a separator, then review, copy or download the joined text.
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Text
Text Line Sorter
Paste one item per line, choose an order, then review, copy or download the sorted list.
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Text
Text Splitter
Paste text, choose where to split it, then review each item on a separate line before copying or downloading TXT.
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Text
AIFeatured
Text Summarizer
Summarize with KitoTool AI or local sentence extraction. Choose length and paragraph or bullet output; check sources in local mode.
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Text
Text to PDF
Paste text, choose a page layout and download a PDF ready to share. Set the paper size, margins and page numbers before checking the finished file.
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Text
Text to Speech
Create Vietnamese speech with ten voices, adjustable speed, browser preview and downloadable 44.1 kHz WAV.
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Audio
Text to Word
Paste text, arrange headings and lists, choose a page layout, then download an editable Word DOCX. Open the file to check the text and page breaks.
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Text
Featured
TikTok Video Downloader
Check a public TikTok video link for an available no-watermark MP4 and optional watermarked video or MP3.
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Social Media
Tip Calculator
Enter a bill and tip percentage to calculate the tip, total and each person's share.
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Utility
TOTP Generator
Get a current TOTP code from a service-provided Base32 key or otpauth URI; create a new key and QR where a service accepts user-generated TOTP secrets. Optional encrypted local vault.
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Developer
Tools starting with U
5
Unit Converter
Convert length, mass, area, volume, speed, data and temperature with instant results, formulas and batch CSV conversion.
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Utility
Unlock / Password Protect PDF
Unlock a PDF with the supplied password or protect a PDF with AES-256 and printing, copying and editing permissions entirely in the browser.
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PDF
URL Encoder Decoder
Encode or decode a URL component or a complete URL. Keep the right separators, inspect the result, then copy or download TXT.
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Developer
URL Extractor
Paste text to extract HTTP, HTTPS and www link candidates. Choose repeats and A–Z order, review the list, then copy or download TXT.
Use now
Text
UUID Generator
Generate UUID v4, v1 or v7 for development. Create up to 100 IDs per batch, copy or download them, and review the 10 most recent IDs stored in your browser.
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Developer
Tools starting with V
8
Video Compressor
Compress a video by adjusting quality or resolution, then preview and download the result.
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Video
Video Format Converter
Convert one MP4, WebM, AVI, MOV or MKV video to MP4, WebM or AVI in your browser, with output details to check before download.
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Video
Video Resizer
Resize one video by pixels, percentage, device, screen, aspect ratio or social preset, then export one or multiple versions.
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Video
Video to GIF
Convert one MP4, WebM, MOV or M4V clip into a looping GIF; choose the clip, width, FPS, colors and dithering, then preview the real result.
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Video
Video to MP3
Extract audio from a video and save it as MP3 with 128, 192 or 320 kbps options.
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Video
Video Trimmer
Trim one continuous segment from an MP4 or WebM video by start and end time. Preview and download in the source format.
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Video
Vietnam Area Codes Lookup
Search official plate prefixes, landline area codes and two-digit administrative codes for Vietnam’s 34 provinces and cities. Includes former province names.
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Utility
Vietnamese Lunar Calendar
Convert a Gregorian date to its Vietnamese lunar date, leap month and Can Chi using Vietnam time (UTC+7), for dates from 1976 to 2099.
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Utility
Tools starting with W
7
WebP Compressor
Recompress still WebP by quality or a per-image KB/MB limit; compare file size and transparency before downloading.
Use now
Image
WebP to JPG Converter
Convert WebP to JPG when the destination requires JPG. Transparency becomes white and animation becomes a still image.
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Image
WebP to PNG Converter
Convert WebP to PNG at the same pixel size, retaining transparency when present; animated WebP becomes a still image.
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Image
Website SEO Checker
Check technical SEO signals on one public URL, with sampled internal links and a separate mobile PageSpeed report.
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SEO
Website Technology Checker
Inspect public signals from one HTML page to identify CMS, frameworks, server/CDN and theme, with evidence and inferred backend language.
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Developer
Word Counter
Count words, characters, estimated sentences and paragraphs in pasted text.
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Text
Word to PDF
Convert a DOCX document to a downloadable PDF; check the exported layout before sharing.
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PDF
Tools starting with X
1Tools starting with Y
2Tools starting with Z
1
TOOL GROUPS
What tool groups does KitoTool include?
KitoTool organizes tools by common tasks so you can jump straight to what you need: AI writing, PDF work, image optimization, video, social media, SEO, development and everyday utilities.
11 tools
AI Tools
Write, rewrite, summarize, draft SEO metadata, edit images or transcribe with task-based tools. Choose the output you need, or chat with KitoTool AI.
View group 23 toolsText Tools
Count words and characters, clean content, compare two texts, extract information or create documents. Choose by task, review the result, then copy or download it.
View group 20 toolsPDF Tools
Merge PDFs, split pages, reduce file size, add a visible signature or convert PDFs to Word, Excel and images. Choose by task and check the output content and layout before downloading or sharing.
View group 38 toolsImage Tools
Compress images to reduce file size, resize or crop to fit, convert formats or adjust backgrounds. Choose by the result you need, then open the downloaded image to check clarity, dimensions and format.
View group 9 toolsVideo Tools
Compress to reduce file size, trim unwanted footage, resize or convert video; extract MP3, make a GIF or create subtitles when needed. Choose by output, then play the export and check its size.
View group 7 toolsAudio Tools
Draw a melody, transcribe speech, create a voiceover, trim or convert audio. Choose your output and check the result before downloading.
View group 7 toolsSocial Media Tools
Save public videos or photos when the source allows it; get a YouTube thumbnail, an ID from a URL or styled text. Choose by platform and task, then check the file or code before using it.
View group 12 toolsSEO Tools
Have a public URL? Check its metadata, speed and signals in Google results. Preparing a new page? Draft metadata, a sitemap, robots.txt or schema, then recheck the live site after applying changes.
View group 17 toolsDeveloper Tools
Format JSON, encode Base64 and URLs, minify HTML/CSS/JS, generate hashes or compare files. Find the right task group and review the result before using it in a project.
View group 22 toolsUtility Tools
Calculate pay, loan interest or BMI; look up lunar dates or area codes; compress or extract ZIP files. Choose by task and check the result before using it.
View group
QUICK PICK
Which tool should you choose?
If you are not sure where to start, choose by your immediate goal. Each group below points to the most relevant tools for that workflow.
Merge, compress or convert documents
Choose PDF tools to manage files, reduce size, convert formats or prepare documents before sharing.
Optimize images for web and social
Image tools help you compress, resize, convert or enhance visuals before publishing.
Prepare videos for publishing
Use video tools to trim, convert, compress or create quick assets for your content channels.
Check SEO and search data
SEO tools help review titles, descriptions, keywords, page data and content optimization signals.
Handle code, strings and quick calculations
Choose developer or utility tools when you need formatting, encoding, calculations or small daily operations.
FAQ HUB
Frequently asked questions
Frequently asked questions
about KitoTool tools
Quick answers to help you choose, use and find free tools on KitoTool.
Need more help?
Send feedback or suggest a new tool so KitoTool can improve the toolkit around real user needs.
Send feedbackIs KitoTool free to use?
Yes. KitoTool tools are built for free online tasks such as AI writing, PDF work, images, video, SEO, development and utilities.
Do I need an account to use the tools?
No. You can open a tool and use the basic features without creating an account.
Which category should I start with?
Choose by goal: AI writing for content, PDF for documents, image or video for media, SEO for website optimization, and developer or utility tools for quick technical tasks.
Can I use KitoTool on mobile?
Yes. The tools hub and category pages are responsive for mobile, tablet and desktop use.
What is the fastest way to find a tool?
Use the search box, pick a category near the top of the page or jump by letter in the all-tools index.
Does KitoTool store my files or input?
Each tool has its own processing flow, but KitoTool prioritizes quick actions and avoids retaining data longer than needed for the task.