How to use the Base64 Encode/Decode
The Base64 tool encodes text to Base64 and decodes it back.
Open the Base64 Encode/Decode →
What you need to enter
- Action
- Text
The formula
Base64 represents bytes using 64 printable characters, adding about 33% to the size.
Worked example
Using the default values in the calculator:
- Action: Encode
- Text: Hello, Tallyworks!
| Result | SGVsbG8sIFRhbGx5d29ya3Mh |
Tips for better results
- It is encoding, not encryption.
- UTF-8 text is supported.
Common mistakes to avoid
- Using it to protect secrets.
- Decoding invalid strings.
Please note: Results are estimates for general use. For safety-critical work such as electrical or building projects, check with a qualified professional and local codes. See our Disclaimer.