Codec engine is online (UTF-8 Safe)

Base64 Encoder / Decoder

Comprehensive binary transcoding matrix. Supports real-time bidirectional conversion of strings (perfect support for Traditional Chinese), and conversion of images/entity files to Data URIs. Pure front-end computing ensures that confidential data does not leak out.

Input (Text) 0 bytes
Output (Base64)
0 chars

Click or drag the file here

Supports any format such as images and documents (it is recommended that a single file be within 5MB to ensure browser performance)

Complete guide to using Base64 encoding and decoding tools

Base64 represents binary data as characters that can be safely placed into a text channel, but it is not encrypted and does not protect the content. Common uses include Data URLs, email attachments, and API fields; the size after encoding usually increases by about one-third.

Operation steps

  1. Select encoding or decoding mode and enter text or files
  2. Confirm UTF-8, Data URL prefix and newline requirements
  3. Check the output type after conversion before copying or downloading

Practical suggestions and limitations

Do not base64 your password, token or personal information and make it public. Anyone can restore it. When processing large files, text representation increases memory and transmission costs.

Privacy and native processing

Text and files are encoded and decoded by the browser itself and will not be uploaded.

Base64 codec tool FAQ

What are Base64 codec tools suitable for?
Base64 represents binary data as characters that can be safely placed into a text channel, but it is not encrypted and does not protect the content. Common uses include Data URLs, email attachments, and API fields; the size after encoding usually increases by about one-third.
How to use Base64 codec tool?
Select encoding or decoding mode and enter text or files; confirm UTF-8, Data URL prefix and line break requirements; check the output type after conversion, and then copy or download.
What should you pay attention to when using Base64 encoding and decoding tools?
Do not base64 your password, token or personal information and make it public. Anyone can restore it. When processing large files, text representation increases memory and transmission costs.
Will the Base64 codec tool upload data?
Text and files are encoded and decoded by the browser itself and will not be uploaded.
Do I need to install software or register an account?
No need. ToolHub provides pure front-end web tools, which can be used immediately after opening the page; if the browser blocks necessary JavaScript or file permissions, some functions may not be executed.
Operation successful