Base64 Encoder / Decoder
Encode and decode Base64, including URL-safe and UTF-8 text.
Runs on your device · no upload
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About Base64 Encoder / Decoder
Base64 Encoder / Decoder converts text to and from Base64. It handles Unicode text correctly and supports the URL-safe alphabet.
1
Paste your input
Everything runs in your browser. Nothing is sent anywhere.
2
Get the result
Copy it with one tap.
3
Download
Save the result. No watermark, no sign-up.
Frequently asked questions
What is URL-safe Base64?
A variant that uses - and _ instead of + and / and omits padding, safe to use in URLs.
Does it support emojis and non-English text?
Yes. Text is handled as UTF-8.
Are my files uploaded anywhere?
No. This tool runs in your browser, so your file stays on your device and is never sent to a server.