Base64 Decoder
Decode Base64 strings back into readable text. Instantly unpack API responses or email payloads locally without compromising security.
Safe Base64 Decoding
If you receive an API payload, a JWT token body, or an email attachment string formatted in Base64, you need to decode it to read the contents. Our offline decoder safely reverses the Base64 mapping, returning the original text or JSON payload securely on your device.
Why Use Our Base64 Decoder?
- Debug APIs: Quickly read encoded JSON responses.
- Privacy Assured: Decode sensitive tokens without sending them to third parties.
- Lightweight: No need to open a terminal or write a script.
- Error Handling: Alerts you if the string is not valid Base64.
How to Use the Base64 Decoder
1.
Paste the Base64 string.
2.
Click 'Decode Base64'.
3.
Read or copy the decoded output.
Frequently Asked Questions
Can I decode images with this?
This specific tool is designed for text. To view Base64 images, please use our dedicated Base64 to Image tool.
Privacy Note
All file processing is performed locally in your web browser. We do not upload, store, or view your data.