Explore free developer tools for JSON, code formatting, encodings, hashing, timestamps, UUID, regex and code diffs.
Format, validate, compare, and convert JSON payloads with zero-trust local processing.
Locate line/column errors, detect UTF-8 BOM, zero-width chars & trailing commas.
Key-order agnostic JSON comparison, breaking change detection.
Infer TypeScript interfaces from multiple JSON API samples.
Web Worker background streaming for multi-MB JSON files with virtualized tree.
Convert JSON arrays to MySQL, PostgreSQL, and SQLite INSERT queries.
Mask API Bearer tokens, JWTs, passwords, emails, and IP addresses locally.
Beautify and clean up source code formatting for multiple languages.
Format SQL queries with support for various SQL dialects.
Format XML source code with proper node indentation.
Beautify CSS rules or minify style sheets for production.
Format HTML layout while preserving script and style blocks.
Beautify modern JS or minify scripts using Terser engine.
Everyday developer utilities for encoding, hashes, timestamps, UUIDs, and diffs.
Encode and decode URI query parameters safely for requests.
Encode and decode text and UTF-8 strings to/from Base64.
Compute MD5, SHA-1, SHA-256, and SHA-512 hashes in browser.
Convert Unix timestamps (s/ms) to human-readable dates.
Generate cryptographically strong RFC4122 v4 UUIDs in bulk.
Test JavaScript regular expressions with real-time match groups.
Convert text to/from Unicode escape sequences (\uXXXX).
Obfuscate JavaScript source code for basic reverse-engineering protection.
Line-by-line comparison for source code differences.
Word and character-level difference comparator for text.