Base64 Encode / Decode
Encode or decode text to Base64 in one click, UTF-8 safe, with clear errors on bad input.
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This tool runs locally in your browser — your content is never uploaded to a server.
How to use
- 1Paste the text you want to process into the input box.
- 2Click “Encode” to get a Base64 string, or “Decode” to restore the original text.
- 3Chinese and other multi-byte characters are handled correctly via UTF-8 — no mojibake.
- 4Click “Copy” to save the result, “Swap” to feed it back as input, or “Clear” to start over.
FAQ
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