Developer Tools

Free online developer tools for JSON formatting, CSV and XML conversion, UUID generation, and hashing.

JSON Formatter

Format, validate, and beautify JSON data. Free online JSON formatter and linter.

Convert JSON data to CSV format. Free online JSON to CSV converter — runs in your browser.

Convert CSV files to JSON format. Free online CSV to JSON converter — fast and private.

Convert XML documents to JSON format. Free online XML to JSON converter.

Convert Markdown syntax to HTML. Free online Markdown to HTML converter with live preview.

Convert HTML to clean Markdown. Free online HTML to Markdown converter.

Generate random UUIDs and GUIDs. Free online UUID v4 generator for developers.

Generate MD5, SHA-1, SHA-256, and SHA-512 hashes from text. Free online hash generator.

How do I format or validate JSON?+

Paste your JSON into the JSON Formatter. It validates the syntax, beautifies the structure with proper indentation, and flags any errors.

How do I convert JSON to CSV?+

Paste a JSON array into the JSON to CSV tool. It automatically detects the fields and produces a CSV that you can copy or download for use in Excel.

How do I generate a UUID?+

Open the UUID Generator and click generate. It produces random version 4 UUIDs, and you can generate up to 100 at once and copy them instantly.

Can I generate MD5 or SHA-256 hashes?+

Yes. The Hash Generator computes MD5, SHA-1, SHA-256, and SHA-512 hashes for any text entirely in your browser using Web Crypto.