Free Tools for Developers
Small, fast tools developers reach for every day — free forever, no sign-up, and everything runs privately in your browser. Nothing you paste is ever sent to a server.
JSON Formatter & Validator
Paste messy JSON and get it beautifully formatted — or minified — with instant error checking. Free, private, runs in your browser.
Open → B64Base64 Encoder / Decoder
Encode text to Base64 or decode it back, with full Unicode support. Handy for APIs, data URIs and debugging.
Open → ***Strong Password Generator
Generate strong random passwords with a strength meter — and learn how websites should store them safely.
Open → QRText to QR Code Generator
Turn text, links, Wi-Fi details and more into QR code images — style the colours and dots, add your logo, and download PNG, JPEG or SVG.
Open → ¶Word Counter
Count words, characters, sentences and reading time as you type — with your most-used keywords highlighted.
Open → AaCase Converter
Switch text between UPPERCASE, lowercase, Title Case and Sentence case in one click — and clean up extra spaces.
Open → YRSAge Calculator
Exact age in years, months and days from a date of birth — plus total days lived and your next-birthday countdown.
Open → RGBColor Converter
Convert colours between HEX, RGB and HSL, with shades and tints you can copy straight into your CSS.
Open → 1ANumber to Words Converter
Write any number in words — Indian system (lakh, crore) and international (million, billion) — ready for cheques and forms.
Open →Learn while you build
These tools pair with our free step-by-step tutorials. Follow a learning path and turn small tools into real skills.
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