FastMinify

What it does

FastMinify is a free, browser-based developer tools platform with 165+ utilities. Minify JavaScript, CSS, JSON, HTML, XML and SVG; convert between JSON, YAML, XML and CSV; validate, format, diff, repair and sort JSON; work with Terraform, Docker, Kubernetes and CI/CD YAML; lint OpenAPI specs; optimize SVG; encode Base64, URL and HTML entities; plus security, networking and everyday dev utilities (UUID, cron, regex). No signup — everything runs locally in your browser.

Key benefits

• Privacy-first: your code never leaves your device
• Zero friction: Monaco editor, copy/download, dark mode, optional file upload
• All-in-one hub: minify, beautify, convert, encode and validate in one place
• PWA: installable for offline access to core tools
• Multilingual: English, French and German UI