How it works
Enter HEX, RGB, or HSL values — all formats stay in sync with a live swatch preview, calculated locally.
Convert HEX, RGB, and HSL with a live preview.
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HEX
RGB
HSL
Enter HEX, RGB, or HSL values — all formats stay in sync with a live swatch preview, calculated locally.
Conversions run in your tab with JavaScript — no desktop app required.
Files stay on your device during processing. We do not receive your uploads.
Heavy codecs and AI models run locally via Web Workers and WASM (FFmpeg.wasm, Transformers.js).
Enter HEX, RGB, or HSL values — all formats stay in sync with a live swatch preview, calculated locally.
Displays sRGB previews only; printed or wide-gamut colors may differ. Processing is 100% offline in your browser — files never leave your device.
Yes. This tool is free convert online with no signup. Processing stays in your browser — no uploads.
You control quality settings. Choose higher quality for no quality loss when converting online.
Every conversion runs inside your browser tab using JavaScript and Web Workers. There is no background server queue and no account is required for core tools.
Your files are never uploaded to FreeConvertKit for processing. Originals, previews, and exports stay on your device unless you choose to download or share them yourself.
When codecs or AI models are needed, WebAssembly modules such as FFmpeg.wasm and Transformers.js execute locally — giving you desktop-class power with absolute file privacy.
Inspect JSON Web Token headers and payloads locally.
Beautify, minify, and validate JSON with syntax highlighting in the browser.
Encode text or files to Base64 without uploading anywhere.
Generate SHA-256 and other hashes from text in the browser.