HandyTools
Web AppOpen Source

Developer Tools Collection

70+ powerful developer tools in your browser. No accounts, no tracking, no nonsense - just tools that work.

70+
Tools Available
10
Categories
MIT
License

What's Inside

A comprehensive collection of tools across 10 categories

Crypto

Hash generators, encryption, UUID/ULID, password analysis, RSA key pairs

Converters

JSON/YAML/TOML/XML, Base64, color formats, number bases, date/time

Web

JWT parser, URL encoder, QR codes, HTTP status codes, meta tag generator

Network

IP/subnet calculators, MAC address utilities, connectivity diagnostics

Development

JSON diff, SQL formatter, regex tester, crontab generator, Docker compose

Text

Diff viewer, statistics, Lorem ipsum, ASCII art, string obfuscation

Why HandyTools

Built with modern web technologies for the best experience

No Account Required

Start using tools immediately without signing up

No Tracking

Your privacy matters - we don't track or collect any data

Open Source

Fully transparent codebase, MIT licensed

Lightning Fast

Built with Next.js 15 and React 19 for optimal performance

Works Offline

Most tools work entirely in your browser

100% Free

No premium tiers, no limitations, completely free to use

Tech Stack

Built with cutting-edge technologies

Next.js 15

Latest App Router architecture

React 19

Modern React with latest features

TypeScript

Type-safe development

Tailwind CSS

Utility-first styling

Start Using Tools Now

No signup required. Just open and start working.