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Generate QR codes for URLs, text, and contact info directly in your browser — no data sent to any server.

Convert between HEX, RGB, HSL, HSV, and CMYK color formats instantly with live preview.

Write and preview Markdown with syntax highlighting in real time — everything stays in your browser.

Convert between units of length, weight, temperature, area, volume, and more without leaving your browser.

A milestone for privacy-first developer tools — thank you to everyone using and sharing the platform.

Generate cryptographically secure passwords with a real-time strength indicator, all in your browser.