Base64 Converter

Drag and drop any file to convert it to Base64 instantly. The worker handles large files while the UI stays responsive.

File to Base64

Drop a file or browse to select one
Drag and drop your file here or click to browse
Selected file No file selected
Size —
Ready to convert 0%

Base64 Output

Copy or review the encoded string
File size —
Base64 size —
Encoding Base64