Format and validate JSON payloads, compress CSS and JavaScript, encode URLs, format XML, generate Schema markups, and build QR codes — 100% free and client-side safe.
Edit, validate, format, and minify JSON data with syntax highlighting and instant error detection.
View nested JSON objects and arrays in a clean interactive collapsible tree hierarchy.
Format minified or raw JSON strings with standard 2-space or 4-space indentation.
Convert JSON objects and arrays into structured XML documents with valid XML schema tags.
Export JSON data arrays into spreadsheet formats (.xlsx) for easy data analysis and reporting.
Encode special characters to percent-encoded formats (%20) and decode query string parameters.
Remove whitespace, comments, and redundant rules to drastically reduce stylesheet file size.
Compress JavaScript scripts to boost page load speed and Core Web Vitals performance.
Clean, format, and edit HTML markup online with real-time visual output preview.
Format raw or unformatted XML files with clean hierarchy tags and syntax validation.
Generate valid JSON-LD FAQ schema markup for Google rich snippets in search results.
Create custom downloadable QR codes for URLs, Wi-Fi networks, text, and contact vCards.
Pick HEX, RGB, HSL color codes, extract palettes from images, and test color contrast.
Extract key points and summarize documentation text or technical logs automatically.
Your JSON payloads, source codes, and API keys are processed directly in your browser and never sent to or stored on servers.
Instant syntax validation, formatting, and minification as you type or paste without server roundtrips.
Strict conformance with RFC 8259 JSON, W3C CSS/HTML, and ECMAScript specifications.
Zero limits, no subscriptions, and no account creation required.
Yes, all developer utilities on OperateTools are 100% free with unlimited usage and no account required.
Yes. Our tools operate client-side in your web browser. Your data is not stored, logged, or transmitted to any third-party servers.
Yes. The JSON and XML utilities can handle multi-megabyte payloads efficiently without browser freezing.
Yes, this AMP edition is specifically designed to load instantly and run smoothly across all smartphones and tablets.