What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme used to represent binary data as ASCII characters.

No, all encoding happens locally.

Yes, your data stays in your browser.

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Encode text to Base64 format and decode Base64 back to text. Our base64 encoder is completely free to use, works offline in your browser, and processes your data locally - ensuring your information never leaves your device. Whether you are a developer working on APIs, a data analyst processing data, or just need a quick tool for your daily workflow, our tool provides instant results with no registration required.