Base64 Decoder
Decode Base64 to text. Runs in your browser.
Decoded text will appear here.
What is Base64 Decoder?
This Base64 Decoder helps developers convert Base64 strings back into readable text. It’s useful when inspecting encoded API responses, tokens, or data copied from logs.
FAQ
Is this tool free to use?
Yes. This tool is available to use for free.
Does the tool run in the browser?
Yes. The logic runs client-side in your browser.
Is my data uploaded to a server?
No. Your input stays in your browser and is not uploaded by this tool.
Can I use this tool for large files?
It depends on your device and browser. Very large inputs may be slow; for huge files, use a local CLI tool.
Example usage
Input
SGVsbG8gd29ybGQ=
Output
Hello world
How to use
- Paste a Base64 string into the input field
- Click Decode
- View the decoded output (or an error if invalid)
- Copy the result