Base64 Text Converter
Encode UTF-8 text as Base64 or decode Base64 locally. Use Base64 for development and troubleshooting. It is an encoding format, not encryption, and should not be used to protect secrets.
Use the tool
Enter your values, then run it. The result is generated in your browser.
Result
Calculated
How to use Base64 Text Converter
- Choose encode or decode.
- Paste the text or Base64 string.
- Copy the result; do not treat Base64 as encryption.
Formula and assumptions
UTF-8 converts text to bytes, then Base64 maps bytes to printable characters; decoding reverses that process.
Never use Base64 to protect passwords, API keys, or private information.
Frequently asked questions
Is Base64 encryption?
No, it can be decoded without a key.
Why can decoding fail?
The input may not be valid Base64 or UTF-8.
Does it support Unicode?
Yes, it encodes UTF-8 bytes.
About this tool
Use Base64 for development and troubleshooting. It is an encoding format, not encryption, and should not be used to protect secrets.
No account is required. The tool runs in this browser and this starter build has no form-submission backend. See the method and assumptions before relying on estimates.