JSON Formatter
Format, validate, and beautify JSON online with readable indentation, syntax checking, and copy-ready output for APIs, logs, and config files.
510 tools · all free · no signup
A quiet workshop for everyday code — format, encode, decode, generate, and convert without clutter, popups, or waiting.
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SQL Formatter
Format SQL queries online with keyword case, indentation, and readable line breaks for cleaner MySQL, PostgreSQL, and SQL Server statements.
XML Formatter
Format and beautify XML documents online with proper indentation and line breaks. Validate XML syntax while formatting for clean, readable markup.
YAML Formatter
Format and beautify YAML content online with proper indentation and flow styles. Paste YAML and get clean, readable output instantly.
Base64 Encoder/Decoder
Encode or decode Base64 strings
URL Encoder/Decoder
Encode or decode URL strings
JWT Debugger
Decode JWTs, verify HMAC, RSA, and EC signatures (paste secret/PEM or fetch JWKS), inspect claims, and visualize the exp/nbf/iat timeline
Regex Tester
Test and debug regular expressions
Diff Checker
Compare two texts and highlight differences
UUID Generator
Generate UUIDs (Universally Unique Identifiers)
QR Code Generator
Generate QR codes for text, URLs, or data
Hash Generator
Generate MD5, SHA1, SHA256, SHA512 hashes
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Developer guides
Read practical articles about JSON debugging, regex mistakes, encoding pitfalls, JWT verification, metadata checks, and the small developer tasks that often take longer than expected.
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