Common use cases
Useful for everyday checks, development verification, format checks before sharing, and lightweight tasks you want to finish in the browser.
Base64 encode / decode
Base64 encoding is a reversible method for representing binary data as text so it can be safely handled in text-only contexts. It is commonly used to embed images or files in data URIs or to transmit binary data as text in email attachments. Base64 is not encryption and should not be used to protect sensitive information. This tool performs encoding and decoding entirely in the browser; be cautious when processing very large binary data as it may impact memory.
About this tool
Encode text to Base64 or decode Base64 strings.
Practical examples
- Encode short settings or text as Base64 to avoid line break and special character issues.
- Decode a received Base64 string to confirm the content.
How to use
- Enter the value you want to check in the Base64 encode / decode input or settings area.
- Choose the required options, then press the action button.
- Review the result, then copy or download it when needed.
Input data and safety
Base64 encoding is a reversible method for representing binary data as text so it can be safely handled in text-only contexts. It is commonly used to embed images or files in data URIs or to transmit binary data as text in email attachments. Base64 is not encryption and should not be used to protect sensitive information. This tool performs encoding and decoding entirely in the browser; be cautious when processing very large binary data as it may impact memory.
Input is processed in the browser by default and is not saved to a server for tool processing. If you handle sensitive data, review the result before sharing it.
Related tools
Related tools help you continue conversion, validation, and pre-sharing checks in the same browser workflow.
Next steps
- JSON Format / ValidateFormat JSON before or after Base64 conversion to confirm structure and values.
- QR Code GeneratorShort Base64 strings can be moved between devices as a QR code.
FAQ
Is the input for Base64 encode / decode sent to a server?
Core processing happens in your browser and input is not saved to a server for tool processing.
Can I use Base64 encode / decode on a phone?
Yes. The input and result areas are designed to adapt to phone and tablet browsers.
What should I check before sharing the result?
Review the result before sharing it, especially when it may include sensitive or personal information.