Developer Tools

Developer utilities: JSON formatter, Base64 and URL encoders, UUID and hash generators. No installs, runs in your browser.

These are the small, sharp utilities developers open a dozen times a day and then close again: format some JSON, encode a string, generate an ID, hash a value, escape a URL. Individually they're trivial; collectively they're the connective tissue of everyday coding. Having them in one fast, no-login place — instead of scattered across bookmarks and questionable ad-heavy sites — saves real time and keeps you in flow.

Developer Tools JSON Formatter & Validator

Format, validate, and minify JSON in your browser.

Developer Tools Base64 Encoder / Decoder

Encode text to Base64 or decode Base64 back to text, with full Unicode (UTF-8) support.

Developer Tools URL Encoder / Decoder

Encode text for safe use in URLs or decode percent-encoded strings back to readable text.

Developer Tools UUID Generator

Generate random version 4 UUIDs individually or in bulk.

Developer Tools Hash Generator (SHA-256, SHA-1, SHA-512)

Generate SHA-256, SHA-1, and SHA-512 hashes from any text in your browser.

Developer Tools Password Generator

Free secure password generator.

Developer Tools QR Code Generator

Free QR code generator.

Developer Tools Color Converter

Free color converter and picker.

Everything runs client-side

For a developer, "runs in your browser" isn't just a privacy nicety — it means you can safely paste an internal API response, a token, or a config snippet without it ever touching a server. Every tool here processes data locally using standard web APIs, so there's no upload, no logging, and no size limit beyond your own machine's memory. Paste sensitive data with confidence.

Understand the output, not just copy it

Each utility comes with a short, practical write-up: how to read a JSON validation error, why minified payloads exist, what the padding characters in Base64 mean, when a UUID beats an auto-increment ID, and why a hash verifies rather than encrypts. The tools do the mechanical work; the explanations help you make the right call. Browse the list below and open whichever one your current task needs.