Base64 Encoder / Decoder
Encode and decode text or data to Base64.
Frequently asked questions
What is Base64 used for?
Base64 turns any data into plain text, for example to embed images in HTML or CSS, send email attachments or store data in JSON.
Is Base64 encryption?
No. Base64 is only an encoding and anyone can decode it right away. It is not suitable for secrets.
How does this tool work?
Base64 is a method for encoding binary data into a string consisting only of ASCII characters.
Enter your text or Base64-encoded data into the text field. You can instantly encode or decode the content using the corresponding buttons. This is particularly useful for data transmission in web interfaces or embedding small files.
Where are my data processed?
Only in your browser. Your data is not sent to any server.
The tool calculates and converts with JavaScript right on your device. Input and files are not sent to us or anyone else. You can check this yourself: load the page, disconnect from the internet, and the tool keeps working in the open tab.