Base64 Decoder
Decode Base64 to text in your browser. UTF-8 safe Base64 decoder with instant results. Free, no signup.
Processed locally in your browser.
How to use this base64 decoder
Paste a Base64 string. Whitespace is ignored. The decoded UTF-8 text appears immediately so you can copy it.
If decoding fails, check padding (=) and that the input is actually Base64, not a hex digest or a JWT (use the JWT Decoder for tokens).
Example
VG9vbGl4bw== decodes to Toolixo.
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Frequently asked questions
How do I decode Base64?
Paste the encoded string. The tool converts Base64 back to bytes, then decodes those bytes as UTF-8 text.
Why do I see garbled characters?
The original bytes may not be UTF-8 text (for example an image). This decoder is for text payloads.
Can I decode a JWT here?
You can decode the parts, but the JWT Decoder splits header, payload, and signature for you.
Is the payload uploaded?
Processed locally in your browser. We do not upload the text to compute a result.
Last reviewed 2026-08-19. Results stay on your device unless you copy them elsewhere.