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Base64 Decode
Decode Base64 and Base64URL into readable UTF-8 text, entirely in your browser.
0 characters
OUTPUT
Your result will appear here
A little input. A useful output.
Your input stays on your device. No uploads. No account. Just your result.
Did this tool make your day a little easier?
How to use Base64 Decode
- 01
Paste the encoded value.
- 02
Decode it.
- 03
Copy the readable text.
A quick example
Try a simple example
INPUTSGVsbG8sIHdvcmxkIQ==OUTPUT
Hello, world!
About Base64 Decode
Base64 decoding turns a printable representation back into bytes. This tool accepts standard and URL-safe alphabets and requires the decoded bytes to be valid UTF-8.
When it comes in handy
- Inspect encoded text.
- Debug a Base64URL payload.
Why use it here?
- Runs locally in your browser.
- No account needed; copy or download your result.
A few things to keep in mind
- Binary files are not supported.
- Invalid UTF-8 bytes produce an error.
Good questions. Simple answers.
Does it support Base64URL?
Yes. The URL-safe dash and underscore alphabet is accepted.
Is my input uploaded?
No. This tool processes your input in your browser. Your input and output are not included in analytics.
A good next step
Useful tools that go well together.