Developer Tools
JSON, Base64, regex, and code utilities
11 tools available
JSON Formatter
Format, validate, and minify JSON with one click. Supports syntax highlighting.
Base64 Encoder
Encode text or files to Base64. Supports full Unicode.
Base64 Decoder
Decode Base64 encoded strings back to plain text.
URL Encoder/Decoder
Encode or decode URLs and query strings.
UUID Generator
Generate RFC 4122 compliant UUIDs (v4). Generate 1 to 20 at once.
Hash Generator
Generate SHA-256, SHA-512, or SHA-1 hashes from any text.
Regex Tester
Test regular expressions against strings with live match highlighting.
Text Diff Checker
Compare two texts side-by-side and highlight every difference line by line. Split and unified views. Copy unified diff. Runs entirely in your browser — no uploads.
SQL Formatter
Format and beautify SQL queries with dialect support: MySQL, PostgreSQL, SQLite, BigQuery, T-SQL. Also minifies SQL. Runs in your browser — no upload.
JSON to CSV
Convert JSON arrays to CSV in your browser. Supports custom delimiters (comma, semicolon, tab, pipe). No upload required.
CSV to JSON
Convert CSV data to a JSON array in your browser. Auto-detects number types. Supports comma, semicolon, tab, and pipe delimiters. No upload.