Developer Tools

Paste raw JSON and instantly format it with proper indentation, syntax validation, and structure clarity. Runs entirely in your browser — nothing leaves your machine.

Encode any plain text string into its Base64 representation. Useful for HTTP headers, data URIs, and API authentication tokens.

Decode a Base64-encoded string back to its original plain text. Ideal for debugging encoded HTTP responses, JWTs, and data URIs.

Generate cryptographically random UUID v4 identifiers in real time. Enter a number (1–50) to generate multiple UUIDs at once.

Minify JSON by removing all whitespace.

Convert a JSON array of objects into CSV format.

Convert JSON data to YAML format.

Convert JSON objects to XML format.

Generate TypeScript interfaces from JSON data.

Parse simple YAML into JSON format.

Parse XML into a JSON object structure.

Parse CSV data into a JSON array of objects.

Convert HTML attributes to JSX-compatible syntax.

Convert basic HTML to Markdown syntax.

Convert Markdown to HTML markup.

Minify CSS by removing whitespace and comments.

Beautify minified CSS with proper indentation.

Remove whitespace and comments from JavaScript code.

Beautify minified JavaScript with proper indentation.

Beautify SQL queries with keyword uppercasing and indentation.

Test regex patterns against text input. Format: pattern on line 1, test text on remaining lines.

Decode a JWT token to view its header and payload without verification.

Convert cron expressions to human-readable descriptions.

Encode special characters to HTML entities.

Beautify and format GraphQL queries.

Generate a basic JSON schema from a JSON object.

Base64 encode string safely for the browser.

Base64 decode string safely for the browser.

Parse URL into components (protocol, host, path, query).

Calculate Linux file permissions.

Generate standard .gitignore templates.

Generate standard Dockerfile templates.

Generate Apache htpasswd credentials.

Get MIME type for a file extension.

Extract browser and OS from User Agent string.

Validate XML syntax and inspect document structure. Shows root element, tag count, attribute count, and unique tag names.

Decode JWT tokens with full header and payload inspection, expiry checking, issued-at timestamp, and signature details.

Parse cron expressions into human-readable descriptions with field breakdown, next run predictions, and valid range reference.

Calculate network address, broadcast, host range and netmask from an IPv4 CIDR notation. Essential for network engineers.

Search and browse the complete HTTP status code reference. Find descriptions for any HTTP response code instantly.

Convert a docker run command into a docker-compose.yml file. Parses ports, volumes, environment variables and more.

Press any key to get its JavaScript keyCode, key, code, which, and location values. Perfect for keyboard event handling.