Base64 Encoder / Decoder
Run Base64Base decoding of strings and files only in the browser without sending them to the server.
Text Conversion
UTF-8 is a standard base64 and Base64 URL.
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- Original Data
- 0 B
- Base64
- 0 B
- Increase rate
- 0%
File conversion
Convert any file to Base64/Data URL and restore the original file from Base64.
Encode files to Base64
Drop files here
or
- File name
- File size
- MIME Type
Recover files from Base64
Decode the Base64 or Data URL in the input field in Decode mode to save the data.
Image preview
About this tool
Base64 is an encoded method for treating binary data as ASCII strings. It is used for mail attachment, API, JSON, XML, Data URL, JWT, Basic authentication, etc.
Features
- UTF-8 string, Japanese, emoji, line break, tab
- Standard Base64 and Base64URL, padding auto-completion
- Base64 Data URL Conversion and Restore Optional Files
- MIME Type analysis and image preview of data URL
How to use
- Select Encode or Decode.
- Type a string Base64 or select a file.
- Run the conversion and copy the result or save it as a file.
Notes
- Base64 is not encrypted.It is not used for protection of sensitive information such as password.
- Large-capacity files may take time to process because they use the memory of the terminal.
- Decode results are not executed as HTML and are treated as text or downloadable files.
Privacy: Input and results are processed in your browser and are neither sent to nor stored on the Develop Tools server.