Free Online Developer Tools
Format messy JSON strings, encode API authorizations, test URLs, and verify cryptographic checksums with client-side zero-leak security.
Developer Utilities
Designed for software engineers, API developers, and DevOps teams
PopularIn-Browser
JSON Formatter & Validator
Format, validate, beautify, and minify JSON data with instant syntax error detection.
Open Tool
PopularIn-Browser
Base64 Encoder / Decoder
Encode text and strings to Base64 format or decode Base64 back into readable UTF-8 text.
Open Tool
In-Browser
URL Encoder / Decoder
Encode characters for safe URL query strings or decode percent-encoded URLs back to plain text.
Open Tool
In-Browser
Cryptographic Hash Generator
Generate secure SHA-1, SHA-256, and SHA-512 hashes from any text using the Web Crypto API.
Open Tool