Base64 Encoder
Convert text to Base64 and decode Base64 to text instantly. Free online Base64 encoder and decoder.
Input Text
Base64 Output
Base64 output will appear here...
About this tool
Encodes text to standard Base64 and decodes Base64 back to text, entirely in your browser.
When you’d use it
- Building an HTTP Basic Auth header by hand.
- Decoding a Base64 payload found in an email attachment, JWT segment, or API response.
- Embedding a small binary blob, like an inline image, as a data URI.
Frequently asked questions
- Is Base64 encoding the same as encryption?
- No, Base64 is an encoding rather than encryption: anyone can decode it back to the original text, so it does nothing to protect sensitive data.
- Does it handle non-ASCII text correctly?
- Yes, input is treated as UTF-8 before encoding, so accented characters and multi-byte characters round-trip correctly.
Free developer tools by Clocktower and Associates. All processing happens in your browser: no data is collected or transmitted.