Base64 Encoder & Decoder
This tool helps you encode text to Base64 format and decode Base64 strings back to plain text. It also supports encoding/decoding files and images.
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Maximum file size: 5MB
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Supported formats: JPEG, PNG, GIF, WebP
What is Base64?
Base64 is a group of binary-to-text encoding schemes that represent binary data in ASCII string format by translating it into a radix-64 representation. It's commonly used when there's a need to encode binary data that needs to be stored and transferred over media that are designed to deal with text.
Common use cases include:
- Embedding image data directly in HTML or CSS files
- Sending binary data in emails
- Storing complex data in JSON format
- Encoding user credentials in basic HTTP authentication
About Base64 Encoder/Decoder
Base64 Encoder/Decoder is a useful tool that helps you encode text to Base64 format and decode Base64 back to plain text
Encode text or binary data as Base64 and decode Base64 back to its original representation.
Key features
- Conversion purpose Encode text or binary data as Base64 and decode Base64 back to its original representation.
- Accepted input Paste plain text for encoding, or provide a correctly padded Base64 string for decoding; UTF-8 text is supported.
- Conversion controls Switch between encode and decode, then copy, clear, or exchange the input and output where those actions are available.
- Converted result The result is a transport-safe Base64 string or the decoded text represented by the supplied bytes.
How to use Base64 Encoder/Decoder
Follow this workflow to work with Base64 data safely and accurately.
- Provide the source value Paste plain text for encoding, or provide a correctly padded Base64 string for decoding; UTF-8 text is supported.
- Set the conversion direction Switch between encode and decode, then copy, clear, or exchange the input and output where those actions are available.
- Convert the data Start the conversion and watch for validation errors that show the supplied Base64 data cannot be interpreted in the selected direction.
- Validate the result The result is a transport-safe Base64 string or the decoded text represented by the supplied bytes.
Usage tips
- Base64 is encoding, not encryption; anyone can reverse it without a key.
- Preserve trailing = padding when another system expects standard Base64.
- Use the URL-safe Base64 variant only when the receiving protocol explicitly expects it.