Base64 Decoder - Decode Base64 Online (No Upload)
No Upload
100% Private
Free
Base64 Input
Decoded Output
Frequently Asked Questions
Is this tool really offline?
Yes. All processing happens in your browser. Your files never leave your device.
Is there a file size limit?
No server limit. Processing depends on your device memory. Files up to 100MB+ typically work fine.
Is it free?
Yes, completely free with no registration required.