Format, convert and generate text every day

JSON, XML, YAML, hashes, JWT, AES, HMAC, regex, cron, mock data and other daily coding utilities that run locally in your browser.

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JSON Formatter

Pretty-print or minify JSON with validation.

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JSON Validator

Check JSON syntax and see the exact error.

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JSON ↔ YAML Converter

Convert JSON to YAML and YAML to JSON.

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XML Formatter

Beautify XML with configurable indentation.

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XML ↔ JSON Converter

Turn XML into JSON and JSON into XML.

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Base64 Encode / Decode

Encode or decode Base64 text safely.

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URL Encode / Decode

Percent-encode query strings and paths.

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HTML Entity Encode / Decode

Escape or unescape HTML entities.

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JWT Decoder

Inspect JWT header, payload and expiry.

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UUID Generator

Create UUID v4 identifiers in bulk.

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Hash Generator

SHA-1, SHA-256, SHA-384, SHA-512 and MD5.

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Regex Tester

Test regular expressions with live matches.

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Cron Expression Generator

Build crontab schedules with a human summary.

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SQL Formatter

Beautify SQL for MySQL, PostgreSQL and more.

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Markdown Previewer

Live GitHub-style Markdown preview.

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HTML / CSS / JS Minifier

Shrink HTML, CSS and JavaScript.

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Timestamp Converter

Unix time ↔ human date in any timezone.

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Unix Timestamp Generator

Current epoch time plus custom dates.

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Color Converter

HEX, RGB, HSL, HSV and CMYK.

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Lorem Ipsum Generator

Placeholder paragraphs, words or lists.

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Unicode Converter

Text ↔ code points, \u escapes and HTML.

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JSON Escape / Unescape

Escape strings for JSON payloads.

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Morse Code Converter

International Morse encode and decode.

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AES Encrypt / Decrypt

AES-GCM in the browser with a password.

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HMAC Generator

HMAC-SHA signatures for webhooks.

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Cron Expression Debugger

Explain a cron and list the next runs.

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Structured Data Diff

Compare JSON, YAML or XML field-by-field.

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Mock Data Generator

Realistic arrays from a sample JSON object.

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Graphviz DOT Viewer

Render simple DOT graphs as SVG.

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Random String Generator

Cryptographically random strings for tokens and keys.

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ULID Generator

Create sortable ULID identifiers.

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Unicode Detector

Inspect code points and invisible characters.

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YAML Formatter

Pretty-print or inspect YAML.