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Developer tools, no clutter.
JSON, Base64, hashing, JWT, encoders and formatters. Instant, exact, and private — nothing leaves your browser.
9 live toolsUpdated weekly
All tools
New tools added every weekJSON
JSON Formatter
Free online JSON formatter and validator. Beautify, indent and validate JSON instantly in your browser.
B64
Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 to text online for free. UTF-8 safe, runs entirely in your browser.
URL
URL Encoder / Decoder
Percent-encode or decode URLs and query strings online for free. UTF-8 safe, runs entirely in your browser.
UUID
UUID Generator
Generate random version 4 UUIDs in bulk online for free. Copy or download them — generated locally in your browser.
HASH
Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from text online for free. Fast, private, and runs entirely in your browser.
JWT
JWT Decoder
Decode JWT tokens online for free. Inspect the header, payload, issued and expiry times of any JSON Web Token instantly — fully in your browser, nothing uploaded.
SQL
SQL Formatter
Format and beautify SQL queries online for free. Indent clauses, uppercase keywords and make messy SQL readable — instant and fully in your browser.
HTML
HTML Minifier
Minify HTML online for free. Collapse whitespace, strip comments and shrink markup to load faster — instant, private, and fully in your browser.
QCG
QR Code Generator
Free QR code generator with no expiry and no scan limits. Make QR codes for a link, Wi-Fi, UPI, email, SMS or phone number and download as PNG or SVG.