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Base64 Encode/Decode
Encode text to Base64 or decode Base64 back to text. Unicode-safe.
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How to use Base64 Encode/Decode
- 1
Paste text or a Base64 string.
- 2
Click 'Encode' or 'Decode'.
- 3
Copy the result.
Why use Base64 Encode/Decode?
- Unicode-safe
- One-click copy
- Zero network calls
Common use cases
- Encode API keys for headers.
- Decode JWT payload segments.
- Work with data URIs.
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About Base64 Encode/Decode
Base64 is everywhere — JWT tokens, data URIs, HTTP basic auth headers. Xevon Tools' Base64 Encode/Decode tool handles text in both directions with full Unicode support, all in your browser. Paste a string, click encode or decode, and copy the result.
Frequently asked questions
Yes. The tool uses TextEncoder/TextDecoder under the hood so any UTF-8 text round-trips correctly.
This version handles text. For files, use our Image to Base64 tool.