Free Developer Tools
Developer tools that respect your privacy. Every tool in our Technology suite processes your data exclusively in your browser — your code and content never leaves your device. Fast, free, and private by design.
SHA-256, SHA-512, MD5, SHA-1 hash generation
JSON parsing, formatting & validation
JavaScript / ES code beautification
100% client-side — no server upload
Hash Generator
Generate cryptographic hashes from text using MD5, SHA-1, SHA-256, SHA-512 and more. Learn how hashing works for security and data integrity.
Open calculator →JSON Formatter & Validator
Format, validate, and minify JSON data online. Handles large payloads efficiently with syntax highlighting, error detection, and tree view — all processed locally in your browser.
Open calculator →JavaScript Formatter & Validator
Format, validate, and minify JavaScript code online. Detects syntax errors instantly with clear error messages — all processed locally in your browser for speed and privacy.
Open calculator →