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Base64 Encode / Decode

Convert text to and from Base64, with URL-safe alphabet and line wrapping

Handles UTF-8 text and emoji
Text
0 chars0 bytes0 lines
Base64
The result shows up here

Encoding works on UTF-8 bytes, so Chinese text and emoji round-trip correctly.

FAQ

Is Base64 encryption?

No. Base64 merely maps bytes onto 64 printable characters; anyone can decode it, so it provides no secrecy. Use real encryption such as AES-GCM to protect content.

Does it handle Chinese text and emoji?

Yes. Encoding works on UTF-8 bytes, so Chinese text and emoji round-trip correctly, and decoding restores them as UTF-8.

Is my data uploaded anywhere?

No. Everything runs locally in your browser — nothing leaves your device, and there is no account or tracking.