Free format conversion tools: JSON formatter and validator, CSV to JSON converter, XML to JSON, YAML to JSON, Base64 encoder/decoder, Markdown to HTML converter, and JWT decoder. Instant conversion with syntax highlighting and validation.
Format, validate, and minify JSON data
Encode and decode Base64 strings
Decode and validate JSON Web Tokens with detailed payload view
Convert CSV to JSON and JSON to CSV with custom delimiter support
Convert XML to JSON and JSON to XML with validation and formatting
Convert YAML config files to JSON and vice versa instantly
Convert Markdown to HTML with live preview and GitHub Flavored Markdown support
All processing happens entirely in your browser using modern web technologies. Your files never leave your device, ensuring complete privacy and security. No server uploads, no data collection, no tracking - just pure client-side processing.
All 7 tools in this category are 100% free with no hidden fees, subscriptions, or premium tiers. No file size limits, no daily usage caps, no watermarks. Just open the tool and start working - no account required.
Built with Next.js 15 and React 19, our tools deliver instant results with zero latency. No waiting for uploads or downloads - everything processes locally on your device for maximum speed and efficiency.
Compatible with all modern browsers on desktop, tablet, and mobile devices. Works offline after initial load. No installation required - just bookmark and use whenever you need these tools.
Perfect for business users who need reliable, privacy-focused tools for daily tasks. Process confidential files locally without security concerns.
Essential utilities for web developers, programmers, and technical professionals. Quick access to tools you need every day, right in your browser.
Whether you're a student, content creator, or casual user - these tools make everyday digital tasks faster and easier, completely free.
Privacy-first productivity tools designed for everyone. No compromises on security or functionality.
All processing happens in your browser - your files never leave your device
No file uploads, no registration, no data collection - complete privacy guaranteed
Process files of any size without restrictions or premium plans
Desktop, tablet, or mobile - our tools work seamlessly everywhere
All tools are completely free with no hidden costs or premium tiers
Transparent, auditable code that you can trust and verify
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