Developer Tools

Format, validate, and beautify JSON data effortlessly.

Encode and decode text or files to and from Base64 format.

Convert colors between HEX, RGB, HSL, and other formats.

Encode or decode URL strings and query parameters instantly in your browser.

Decode JWT header and payload to inspect claims — no server required.

Generate UUID v4 identifiers in bulk for APIs, databases, and testing.

Create SHA-256, SHA-1, and SHA-512 hashes from any text using Web Crypto.

Test regular expressions with live matches, flags, and replace preview.

Convert Unix timestamps to human-readable dates and back in one click.

Generate strong random passwords with length and character options.

Create QR codes for URLs, Wi-Fi, contacts, and more with custom colors and logo.

Encode or decode HTML entities for safe markup and debugging.

Parse URL query strings into readable key-value pairs and rebuild them.

Convert numbers between binary, octal, decimal, and hexadecimal.

Remove extra whitespace from JSON to produce compact, valid output.

Convert JSON objects and arrays into downloadable CSV tables.

Parse CSV rows into JSON objects using the header row as keys.

Convert YAML documents into JSON for APIs, configs, and review.

Turn JSON data into readable YAML without leaving the browser.

Pretty-print XML, check parser errors, and copy indented markup.

Indent and restyle SQL for MySQL, PostgreSQL, SQLite, and more.

Beautify HTML markup with consistent indentation for review.

Format CSS rules and declarations into readable stylesheets.

Beautify JavaScript with consistent braces, spacing, and indent.

Build 5-field cron schedules and preview the next run times.

Look up geolocation, ISP, ASN, and timezone details for an IP address.

Query A, AAAA, MX, TXT, NS, and other DNS records for a domain.

Pick a color and copy HEX, RGB, HSL, and HSV values instantly.

Encode an image as raw Base64 text for APIs, JSON, and inline use.

Check JSON syntax and report line, column, type, and size details.