Encode text to Base64 or decode Base64 back to readable text, instantly in your browser. Useful for developers, data transfer and debugging — free, private and no sign-up needed.
How to Use
- Type or paste your text — or a Base64 string you want to decode — into the input box.
- Click Encode to convert text to Base64, or Decode to convert Base64 back to readable text.
- Copy the result with the Copy Output button.
Key Features
- Two-way conversion — encode and decode in a single tool.
- UTF-8 safe — accented characters and emoji are handled correctly.
- Clear error message if the input is not valid Base64.
- Copy Output button for quick reuse.
- 100% private — everything runs in your browser; nothing is uploaded.
FAQs
Is this Base64 tool free?
Yes. Encoding and decoding are completely free, with no sign-up and no usage limits.
What is Base64 used for?
Base64 represents binary or special data as plain text, which makes it safe to include in emails, URLs, data URIs and API payloads.
Does it handle non-English characters and emoji?
Yes. Your text is converted as UTF-8 before encoding, so accented letters, non-Latin scripts and emoji all work correctly.
Is my input sent to a server?
No. All encoding and decoding happens locally in your browser with JavaScript, so your data never leaves your device.