01 / Fast steps
- Paste or type the text to encode.
- The Base64 output updates as you type.
- Copy the result or download it as a file.
Base64 Encode
Encode text into Base64 for headers, config and developer workflows.
Updates instantly as you type
02 / Best for
- Build Basic Auth headers for API testing.
- Embed small text payloads in JSON or XML safely.
- Prepare values for systems that only accept ASCII.
03 / Why here
- Live encoding with no button to press and no page reload.
- Runs entirely in your browser, so secrets and tokens never leave your device.
04 / Keep in mind
- This tool encodes text input; it does not encode binary files such as images.
Tool connections
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Good to know
Questions & answers
01Is my text sent to a server?
No. Encoding happens locally in your browser with the built-in btoa logic, so tokens, credentials and payloads never leave your device.
02What is Base64 used for?
Base64 represents any data using only 64 safe ASCII characters. It is common in Basic Auth headers, data URIs, email attachments and config files.
03Does Base64 encrypt my data?
No. Base64 is an encoding, not encryption: anyone can decode it. Use the Text Encryptor if you need actual AES encryption.
04Is Base64 Encode free to use?
Yes, Base64 Encode is completely free, with no sign-up and no usage limits. It runs entirely in your browser, so your data never leaves your device.