Developer
Tools
Format code, test patterns, generate IDs — all running locally in your browser with zero tracking.
JSON Formatter
Format, validate, and beautify JSON data. Minify or prettify with customizable indentation. Syntax highlighting included.
Hash Generator
Generate MD5, SHA-1, SHA-256, and other cryptographic hashes. Perfect for file integrity verification.
Color Picker
Pick and convert colors between HEX, RGB, HSL formats. Generate color palettes and gradients.
UUID Generator
Generate UUID v4 identifiers. Batch generation supported for multiple unique IDs at once.
Regex Tester
Test and debug regular expressions with real-time matching. Supports JavaScript regex syntax.
Diff Checker
Compare two text snippets or files to find differences. Highlight additions, deletions, and changes.
Markdown Editor
Write and preview Markdown in real-time. Export to HTML or styled PDF. Features syntax highlighting.
ICO Converter
Convert PNG or JPG images to ICO format for website favicons or application icons.
No installs
Open a tool and use it instantly. Nothing to set up.
Private by design
Everything runs in your browser. Your code never leaves the device.
Made with care
Clean UI, keyboard shortcuts, and thoughtful defaults.
Code Faster with Browser-Based Tools
No Installation, No Dependencies
Stop installing npm packages just to format JSON or test a regex. Filemint's developer tools run entirely in your browser— bookmark them and access instantly from any machine. No VS Code extensions, no command-line tools, no setup required.
Perfect for Quick Tasks
- •Debug API Responses: Paste messy JSON from curl, beautify, and inspect nested objects
- •Validate Patterns: Test regex against sample data before committing to production code
- •Generate Test Data: Create UUIDs for database seeds or API testing
Privacy for Corporate Code
Many developers work under NDAs or in secure environments. Pasting proprietary code into cloud-based tools creates compliance risks. Filemint processes everything locally—your regex patterns, JSON configs, and code snippets never leave your laptop.
Designed for Developers
We understand developer workflows. Keyboard shortcuts, syntax highlighting, error messages that actually help, and performance optimized for large files. Built by developers, for developers.
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