The Base64 Encode / Decode is a free online tool that lets you uTF-8 safe Base64 — so you can format, convert and debug without installing anything. Everything runs locally in your browser, so it is fast, completely private, and works even when you are offline.
Whether you are a developer, tester or student, the Base64 Encode / Decode gives you instant results with no installation, no account and no limits.
Yes. The Base64 Encode / Decode is completely free with no sign-up, no usage limits and no watermarks. Use it as many times as you like.
Absolutely. The Base64 Encode / Decode processes everything inside your browser — your input is never uploaded to any server, so your data stays 100% private.
Yes. All processing happens in your browser using JavaScript, so once the page has loaded you can keep using it with no internet connection — and none of your code or data is ever sent to a server.
No installation needed. The Base64 Encode / Decode works in any modern browser on desktop, tablet and mobile.
Yes. It correctly encodes and decodes Unicode characters (like emoji or non-Latin scripts), not just plain ASCII.