Base64 Decode
Paste any Base64 string and instantly recover the original text, even with emoji and non-English characters. Clear validation catches bad input.
Quick Answers
- Why do I get an invalid Base64 error?
- Base64 uses only A-Z, a-z, 0-9, +, / and = padding. Newlines are ignored, but stray characters, wrong length or bad padding cause an error.
- Does it decode data URIs?
- Paste only the Base64 portion (after the comma) of a data URI. The tool decodes it back to its original text or binary content.
- Is decoding safe for sensitive data?
- Yes, everything happens locally in your browser. Nothing is transmitted or stored.
How to use Base64 Decode – Decode Base64 Online
- Paste the Base64 string into the input box.
- The decoded text appears instantly.
- Copy the result or download it as a file.
Why use our base64 decode – decode base64 online?
Decoding tokens, data URIs and payloads is a daily task for developers. This decoder accepts standard Base64, validates the character set and padding, and reports a clear error if your input is malformed. Full Unicode support means decoded UTF-8 text (including Hebrew, Arabic and emoji) comes back exactly as intended. All decoding runs locally in your browser.
Frequently Asked Questions
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