Developer Tools
Essential utilities for developers — formatters, encoders, generators and more. Free, fast, 100% private in-browser utilities.
19 tools available in this category
About Developer
Developer Tools is a sandboxed suite of code formatters, validators, encoders, and cryptographic utilities. Whether you need to inspect JSON payloads, encode Base64 tokens, generate cryptographic SHA-256 hashes, test regular expressions, or generate random UUIDs, all processing happens strictly inside your browser sandbox with zero network transmission of your private keys or secrets.
Popular Tasks in this Category
- Format, validate, and minify JSON data
- Encode & decode Base64 strings and data URIs
- Generate SHA-256, SHA-512, and MD5 cryptographic hashes
- Generate RFC-compliant UUID v4 identifiers
- Encode and decode URLs and query parameters
- Test and debug Regular Expressions (RegEx)
Software engineers, frontend/backend developers, QA testers, system administrators, and cybersecurity professionals.
Time Zone Converter
PopularConvert times between any time zones with live multi-zone comparison and Nepal (UTC+5:45) support
JWT Decoder
NewDecode JWT tokens to inspect header and payload, with optional HMAC signature verification
Unix Timestamp Converter
PopularConvert Unix epoch timestamps to human-readable dates and back, in any timezone
CSS & JS Minifier
NewMinify CSS or JavaScript by removing whitespace, comments, and shortening code
HMAC Generator
NewGenerate cryptographic HMAC signatures using SHA-256, SHA-512, MD5, or SHA-1 with custom secret keys