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Base64 Encoder / Decoder

The Base64 Encoder / Decoder lets teams transform text safely in the browser without relying on external services. Paste JSON, configuration snippets, or binary-safe strings to encode for transport, or decode Base64 payloads received through APIs and webhook alerts. The utility preserves UTF-8 characters, supports large inputs with chunked processing, and gives you copy and download controls for quick sharing. Developers and support engineers use it to debug tokens, email templates, and cloud secrets while keeping sensitive data local. Because everything runs client-side, nothing is logged, stored, or transmitted.

Operations happen entirely in your browser—no data ever leaves this page.

Output

Handles UTF-8 automatically. Binary data is preserved; decoding invalid Base64 strings will display an error without clearing your original input.

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