File to Base64 Converter
Convert any file (PDF, ZIP, font, audio…) to a Base64 string or data URI. Copy or download. Free and private — files never uploaded.
✓ 100% free ✓ No sign up ✓ Runs in your browser — nothing uploaded
How to use File to Base64 Converter
- 1Drop your file into the box above.
- 2Adjust the options.
- 3Download the result — everything happens on your device.
Questions
Is File to Base64 Converter free?
Yes. File to Base64 Converter is 100% free with no limits, no watermark, no sign up and no email required.
Are my files uploaded to a server?
No. Your files are processed entirely inside your browser using JavaScript. They never leave your device, so it is private and works even on slow connections.
Does File to Base64 Converter work on my phone?
Yes. File to Base64 Converter works in any modern browser on iPhone, Android, Windows, Mac, Linux and Chromebook. No app or install needed.
Do I need to create an account?
Never. There is no sign up, no login, no email and no paywall. Just open the page and use it.