Explore free developer tools for JSON, code formatting, encodings, hashing, timestamps, UUID, regex and code diffs.
Validate JSON, compare API payloads, infer types, view data, generate SQL, and review redaction results.
Inspect available error positions, BOM, zero-width characters, and repairable trailing commas.
Key-order agnostic JSON comparison, breaking change detection.
Infer TypeScript interfaces from multiple JSON API samples.
Parse complete JSON in a Worker and browse a virtual leaf list; file size is limited by browser memory.
Generate MySQL, PostgreSQL, or SQLite INSERT text; no parameter binding or database execution.
Mask matching JSON values or text; review retained keys, false matches, and omissions before sharing.
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.