Is the JSON formatter free?

Yes, format, validate, and beautify JSON data completely free.

Can I encode and decode Base64?

Yes, our Base64 tool handles both encoding and decoding of text and data.

What code languages can be minified?

We support minification of HTML, CSS, JavaScript, and JSON.

Is the meta tag generator SEO-friendly?

Yes, it generates all essential meta tags following current SEO best practices.

Can I validate IBAN numbers?

Yes, our IBAN tool both generates and validates International Bank Account Numbers.

Free Online Developer Tools

Format JSON, encode/decode data, minify code, and generate SEO files. Essential utilities for web developers, programmers, and tech professionals.

All Developer Tools

JSON Formatter

Format, beautify, and validate JSON data.

Syntax highlightingError detectionTree view

Base64 Encoder/Decoder

Encode and decode text and files to/from Base64.

Text encodingText decodingFile encoding

URL Encoder/Decoder

Encode and decode URL strings and parameters.

Full URL encodingComponent encodingDecode encoded URLs

Code Minifier

Minify JavaScript, CSS, and HTML code.

JavaScript minificationCSS minificationHTML minification

Meta Tag Generator

Generate SEO meta tags and Open Graph tags.

SEO meta tagsOpen Graph tagsTwitter Cards

Robots.txt Generator

Generate robots.txt files for search engine crawlers.

User-agent rulesAllow/Disallow pathsCrawl delay

IBAN Generator

Generate and validate International Bank Account Numbers.

Multiple countriesBank code inputAccount number input

Why Use Our Developer Tools?

No Installation

Use directly in browser without installing software or extensions.

Always Available

Access tools anytime from any device with a web browser.

Privacy First

All processing happens locally. Your code stays on your machine.

Developer Focused

Built by developers, for developers. Practical and efficient.

Essential Developer Utilities

Our free online developer tools streamline common coding tasks without requiring software installation. From formatting JSON to encoding Base64 and minifying code, these browser-based utilities help developers work faster.

JSON Formatter & Validator

The JSON formatter beautifies minified JSON with proper indentation and syntax highlighting. It also validates your JSON structure and pinpoints errors, making debugging API responses much easier.

Text Tools Calculators