Base64 Encoder / Decoder
Encode Unicode text to Base64 or decode Base64, including URL-safe Base64.
✓ No signup✓ Mobile friendly✓ Clear limitations✓ Browser-first where practical
Recent tools are remembered only on this device.
Why use this base64 encoder / decoder?
Base64 is a text representation of binary or text data commonly used in APIs, email and configuration files. This tool can encode ordinary text or decode a Base64 string.
Example
Encoding the text Toolbox produces VG9vbGJveA==.
Important note
Base64 is encoding, not encryption. Anyone can decode it, so do not use it to protect secrets.
How to use it
Start with the inputs shown above, review any options or assumptions, then generate the result. Where the tool creates a file, keep the original until you have opened and checked the downloaded output.
Frequently asked questions
Is this tool free?
Yes. The core tool is free to use.
Do I need an account?
No. You can use it without signing up.
Does it work on mobile?
Yes. Toolbox is designed for modern mobile and desktop browsers.