Free · Private · No sign-up
Everyday tools, neatly nested in one place.
Count, convert, clean up and organise — right in your browser. Nothing to install and nothing uploaded.
- 34 working tools
- 15 categories
- 136 more on the roadmap
Search results
Favorite tools
Recently used
Your most used
Counted only on this device
Editor’s picks
Editorial recommendations, not usage statistics
- Word & Character Counter Count words, characters, sentences and paragraphs, and estimate reading and speaking time.
- Unit Converter Convert length, weight, temperature, area, volume, speed, time, data, pressure and energy units.
- JSON Formatter & Validator Format, minify and validate JSON with exact error locations — without changing large numbers.
- Markdown Editor & Preview Write Markdown with a live preview, then copy the HTML or download an HTML or .md file.
Browse by category
Full directory- Text & Writing Count, convert, clean up and transform text.
- Image & Photo Compress, resize, crop, convert and inspect images locally.
- PDF & Documents Merge, split, rotate and build PDF files in your browser.
- Student & Education Grades, GPA, flashcards, planners and study timers.
- Math & Conversion Calculators, statistics, number bases and unit converters.
- Developer Utilities Formatters, encoders, generators and inspectors for code.
- Design & Color Colors, gradients, shadows, contrast and typography.
- Privacy & Security Passwords, hashing and encryption with Web Crypto.
- Social Media & Content Format captions, bios, hashtags and content plans.
- Business & Finance GST, EMI, interest, margins, invoices and budgets.
- Productivity To-dos, notes, timers, planners and trackers.
- Date & Time Ages, date differences, time zones and timestamps.
- Internet & Networking Offline URL, IP and subnet tools plus references.
- File & Data CSV, JSON, Base64, hex and file inspection.
- Audio & Video Preview, inspect, trim and capture frames from media.
Why ToolNest
Private by design
Tools process your input inside this browser tab. There are no accounts, analytics or ad trackers.
Free to use and host
A static site with no server or database, published at no cost on GitHub Pages.
Honest about status
Only working tools get a page. Everything else is clearly marked as planned.