file to Base64 converter online
Encode any file or text into a Base64 string — for embedding in code, JSON or a data URI. Upload your file file and the tool instantly converts it to Base64 — free, no watermarks, no sign-up.
🔒 Private⚡ Fast🆓 Free, no sign-up
Drop your file here
file → Base64 · up to 25 MB per file
It takes a couple of seconds: drop a file into the window or pick it from your device, click “Convert” and download the ready Base64. Uploaded and generated files are deleted from the server automatically after 30 minutes.
Frequently asked questions
Is file → Base64 conversion free?
Yes, completely free with no limit on the number of conversions. No registration required.
What happens to my files?
Files are processed on our server and automatically deleted after 30 minutes. We never publish, share, or index them.