Base64

Encoder / décoder Base64.

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FAQ(5)

Is Base64 encryption?

No. It is encoding for binary-safe text. Anyone can decode it—do not treat it as secrecy. Place your content in the input area above, tweak options if needed, then copy the result into your editor, terminal, or documents. LocalKit processes everything locally in your browser—nothing is uploaded and no account is required. On a shared computer, close the tab afterward and be careful with sensitive clipboard data.

Why do I see “Invalid Base64”?

Check padding (=), remove spaces/newlines, and confirm the alphabet (standard vs URL-safe). Place your content in the input area above, tweak options if needed, then copy the result into your editor, terminal, or documents. LocalKit processes everything locally in your browser—nothing is uploaded and no account is required. On a shared computer, close the tab afterward and be careful with sensitive clipboard data.

Does Unicode text encode correctly?

Yes. Text is handled as UTF-8 before encoding and after decoding. Place your content in the input area above, tweak options if needed, then copy the result into your editor, terminal, or documents. LocalKit processes everything locally in your browser—nothing is uploaded and no account is required. On a shared computer, close the tab afterward and be careful with sensitive clipboard data.

Is data sent to your servers?

Never. Encode/decode stays on your device. Place your content in the input area above, tweak options if needed, then copy the result into your editor, terminal, or documents. LocalKit processes everything locally in your browser—nothing is uploaded and no account is required. On a shared computer, close the tab afterward and be careful with sensitive clipboard data.

When should I use Base64?

Embedding small binaries in JSON/HTML, data URLs, or protocols that only accept text. Place your content in the input area above, tweak options if needed, then copy the result into your editor, terminal, or documents. LocalKit processes everything locally in your browser—nothing is uploaded and no account is required. On a shared computer, close the tab afterward and be careful with sensitive clipboard data.