About Base64 Encoder
Encode and decode text to/from Base64, or encode/decode binary files, directly in the browser.
How to use Base64 Encoder
- 1Enter your text in the input field — encoding/decoding happens in real time.
- 2Use the "Encode" or "Decode" buttons to switch between the two modes.
- 3Click the copy icon to copy the result to your clipboard.
- 4Starter+: enable file mode to encode a binary file to Base64, or decode a Base64 string back to a file.
Tips
- Base64 is commonly used to embed images in HTML/CSS (data URIs) or send files inside JSON payloads.
- In decode mode, make sure the input is valid Base64 — any invalid character will produce an error.
- File mode is useful for inspecting or generating data URIs from images or fonts.
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OneKitTools TeamUpdated 2.21.4