Code and Data Formatting Tools

Format, validate, minify, sort keys and inspect JSON outline locally.

Encode/decode Unicode text, URL-safe Base64, and small files in the browser.

Encode/decode URL components or full URLs and inspect query parameters.

Convert numbers across bases and transform text into hex, binary, Base64 and Unicode bytes.

Search and filter common HTTP status codes with bilingual explanations, categories and troubleshooting hints.

Encode JSON into Protobuf bytes or decode hex / Base64 Protobuf payloads with a .proto schema in the browser.

Decode JWT header and payload locally, inspect claims, expiry times and raw Base64URL segments.

Format and validate XML locally with a clean pretty-printed output.

Format and validate YAML locally with stable indentation and clean output.

Format and validate TOML locally for config files and structured settings.

Convert common docker run commands into a starter docker-compose service block.

Convert JSON arrays and CSV tables both ways in the browser, with headers, delimiter choice and quick validation.

Encrypt or decrypt short text with AES, DES or 3DES in the browser, with selectable block mode, padding, IV and output format.

Convert HEX, RGB, HSL and HSV colors, inspect alpha values, pick colors visually and preview palettes instantly.

Look up printable ASCII codes, control names and character conversions between decimal, hex and binary.

Inspect text or files as hex bytes, edit hexadecimal content, and decode it back to text locally in the browser.

Generate browser-side RSA key pairs and use them for short text encryption, decryption, signing and verification.

Test JavaScript regular expressions, inspect matches, groups and replacements, and iterate with live sample text in the browser.

Evaluate JSONPath expressions against JSON data, inspect matched paths and preview results with GitHub-style highlighted JSON output.

Convert structured data between JSON, YAML, TOML and XML, validate input, and preview the output with GitHub-style code highlighting.

Convert text bytes between UTF-8, UTF-16, Shift-JIS, EUC-JP and other browser-safe encodings, then inspect normalized text and hex bytes.

Look up common HTTP request headers and quickly review client, auth and caching related fields.

Browse common HTTP response headers, understand caching, security and delivery-related fields.