Developer Tools

17 tools

Format, encode, validate and generate code artifacts. Every tool is free, gives instant results and needs no sign-up.

JSON Formatter

Format, validate and minify JSON with syntax highlighting.

Developer

Base64 Encode / Decode

Encode text to Base64 or decode Base64 back to plain text.

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URL Encoder / Decoder

Encode or decode URL components and query strings.

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New

Hash Generator

Generate MD5, SHA-1, SHA-256 and SHA-512 hashes.

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UUID Generator

Generate UUIDs v4 (random) in bulk with one click.

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Regex Tester

Test regular expressions against text with live match highlighting.

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JWT Decoder

Decode and inspect JWT tokens: header, payload, claims and expiry.

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New

Cron Expression Builder

Build cron expressions visually with a plain English summary and next run times.

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New

Diff Checker

Compare two text blocks side-by-side and see additions, deletions and unchanged lines.

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New

JSON ↔ CSV Converter

Convert JSON arrays to CSV or CSV files back to JSON with full quote and escape support.

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YAML ↔ JSON Converter

Convert YAML to JSON or JSON to YAML instantly with a built-in parser.

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SQL Formatter

Beautify and format SQL queries with proper indentation and keyword styling.

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HTML Entity Encoder

Encode special characters to HTML entities and decode entities back to text.

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String Escape / Unescape

Escape and unescape strings for JSON, JavaScript, Regex, URL and HTML.

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New

CSV ↔ TSV Converter

Convert CSV to TSV or TSV to CSV. Handles quoted fields and embedded commas.

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JSON ↔ XML Converter

Convert JSON to XML or XML to JSON with proper nesting and formatting.

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Markdown → HTML

Convert Markdown to clean HTML output, ready to paste anywhere.

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