Optimize
13 toolsReduce file size or improve quality and performance.
10 categories · 157+ free online tools
Free Online Tool Categories
Explore 157 tools by type or task: AI, text, PDF, images, video, audio, social media, SEO, development and utilities.
Choose the right category for you
AI Tools
Write content and process images and audio with AI.
11 tools
Text Tools
Count words, clean up and organize text.
23 tools
PDF Tools
Merge, split, compress and convert PDFs.
20 tools
Image Tools
Compress, resize, remove backgrounds and edit images.
38 tools
Social Media Tools
Download public media, get thumbnails and style text.
7 tools
Video Tools
Trim and compress videos, create GIFs and subtitles.
9 tools
Audio Tools
Transcribe, create speech and trim audio.
7 tools
SEO Tools
Check websites, create meta tags and find keywords.
12 tools
Developer Tools
Format JSON, encode data and work with code.
17 tools
Utility Tools
Everyday calculators, lookups and file tools.
22 tools
What would you like to do?
Choose a task, find the right tool.
Create
23 toolsCreate new content, images, codes or resources.
Show less · Create
- Automatic Video Subtitle Generator
- CV Builder Online
- Draw Music Online
- Fake Data Generator
- Gmail Dot Generator
- Hash Generator
- Link Shortener
- Lorem Ipsum Generator
- Lucky Wheel
- Notepad
- Online Screen Recorder
- Photo Collage Maker
- Robots.txt Generator
- Schema Markup Generator
- SEO Meta Generator
- Text Document Generator
- UUID Generator
- XML Sitemap Generator
Edit
36 toolsChange a file’s content, appearance or properties.
Show less · Edit
- Add Watermark to Images
- AI Image Background Changer
- AI Paraphraser
- Audio Cutter
- Batch PDF Watermark
- Blur Background
- Case Converter
- Copy Metadata Between Images
- Duplicate Line Remover
- Extra Whitespace Remover
- Facebook Font Generator
- Image Adjuster
- Image Metadata & EXIF Editor
- Image Metadata & EXIF Remover
- JSON Formatter
- Object & Watermark Remover
- Online Code Editor
- Online Markdown Editor
- Online Word Document Editor
- Organize PDF Pages
- PDF Merge
- PDF Split
- Remove Duplicate Lines
- Remove Line Breaks
- Sign PDF Online
- Text Cleaner
- Text Joiner
- Text Line Sorter
- Text Splitter
- Unlock / Password Protect PDF
- Video Resizer
Convert
38 toolsChange data or files into another format.
Show less · Convert
- Audio Format Converter
- AVIF to JPG Converter
- AVIF to PNG Converter
- Base64 Encoder Decoder
- Convert Audio to MP3
- Excel to PDF Converter
- HEIC to JPG Converter
- HEIC to PNG Converter
- Image Format Converter
- Image to Music
- Image to PDF
- JPG to PDF
- JPG to PNG Converter
- JPG to WebP Converter
- Number to Vietnamese Text
- PDF to Image
- PDF to JPG
- PDF to PNG
- PDF to PowerPoint
- PNG to JPG Converter
- PNG to PDF
- SVG to Code Converter
- Temperature Converter
- Text to PDF
- Text to Speech
- Text to Word
- Unit Converter
- URL Encoder Decoder
- Video Format Converter
- Video to GIF
- WebP to JPG Converter
- WebP to PNG Converter
- Word to PDF
Analyze & extract
26 toolsRead, recognize or extract information from existing data.
Show less · Analyze & extract
- Audio to Text
- Backlink Checker
- Barcode Scanner
- Character Counter
- Compare Image Metadata
- Email Extractor
- Google Keyword Rank Checker
- Image Color Picker
- Keyword Idea Generator
- Meta Tag Analyzer
- Online File Comparison
- Online QR Code Scanner
- Online ZIP Extractor
- Page Speed Test
- Plagiarism Checker
- SERP Preview
- Social Media ID Extractor
- Text Compare
- Text Extractor
- Text Summarizer
- URL Extractor
Calculate & check
21 toolsCalculate results, check conditions or validate data.
- BMI Calculator
- Tip Calculator
- Password Checker
- Website Technology Checker
- Loan Amortization Calculator
Show less · Calculate & check
- Age Calculator
- Check My IP Address
- Google Index Checker
- Gross to Net Calculator
- Holiday Countdown
- Internet Speed Test
- Online File Virus Scanner
- Online Keyboard Tester
- Page Speed Test
- Plagiarism Checker
- Temperature Converter
- TOTP Generator
- Unit Converter
- Vietnam Area Codes Lookup
- Vietnamese Lunar Calendar
- Website SEO Checker
Find the right tool faster
What is included in the KitoTool directory?
Browse by data type first or by the action you need above. When two categories look similar, choose by the result you want.
Writing or text cleanup?
Choose AI to write or rewrite; choose Text to count words, filter lines or clean data.
Documents or media?
Choose PDF to merge, split or convert documents; choose Image or Video to compress and edit media.
Website checks or downloads?
Choose SEO for metadata, speed and link checks; choose Social for supported public media downloads.
Code or calculations?
Choose Developer for JSON, minified code or UUIDs; choose Utilities for BMI, loan interest or dates.
Built for
Who should use KitoTool tools?
The directory is for anyone who wants to complete common tasks without installing extra software. Choose a category, then review each tool for formats, limits and data handling details.
- Writers and SEO specialists
- Marketing teams
- Students and educators
- Content creators
- Developers and site owners
- Individuals and small businesses
3-step workflow
Use Any Tool in Just 3 Steps
From finding a tool to getting the result, every action is clear and completed directly in your browser.
Choose a tool
Browse a category or search our library of 157+ free tools.
Enter your content
Paste text, upload a file, or enter information to process directly in your browser.
Get the result
View, copy or download the result when processing finishes. Time depends on the tool, data and device.
No signup required
Works in your browser
Fast results
FAQ
Frequently Asked Questions about Tool Categories
Quick answers about choosing categories, using tools across devices and checking each tool's data handling policy.
Are all tools on KitoTool free?
Listed tools include free access with features and limits shown on each page. Advanced services or VIP tools may have separate terms.
How do I choose the right tool category?
Choose by input or outcome: PDF for documents, Image or Video for media, AI Tools for AI tasks, SEO for websites, Developer for technical data and Utilities for everyday calculations.
Do I need to install software or create an account?
No. Just open your browser, visit the website, select a tool and use it immediately. No registration or login required.
Can I use the tools on phones and tablets?
Yes. The interface supports desktop, tablet and mobile. Large-file performance still depends on device resources, memory and network speed.
How is submitted data processed?
Processing varies by tool: some run entirely in the browser, while API-based tools may send data to a processing server. Review the tool page before submitting sensitive information.
Which languages does KitoTool support?
The website currently includes Vietnamese, English, Spanish and Portuguese versions. Use the language selector in the header to switch.
How can I contact support if I have issues?
Send your question or describe the issue through the Contact page so KitoTool can review it and reply.
SUPPORT & PARTNERSHIP
Support the project or contact us for an advertising partnership.