File to Base64 — Encode Any File to Base64 Free, No Upload
Encode any file as a Base64 string for embedding in APIs, JSON, or HTML.
Convert Any File to Base64 String — free, directly in your browser
Convert File to Base64 Now →🔒 Files never uploaded · ⚡ Lightning fast · 🆓 Completely free
🔒 Files Never Uploaded⚡ FileCraft Engine🆓 Always Free📵 No Registration
How to Convert File to Base64
1
Drop any file
2
Copy or download the Base64 string
3
Use in your application
Why Use FileCraft for File to Base64 Conversion?
- ✓Works with any file type
- ✓No upload needed
- ✓Copy to clipboard
About Any File and Base64 String
Any File (File) and Base64 String (Base64) are common file formats. FileCraft converts between them using its built-in processing engine that runs entirely in your browser — no server, no upload, complete privacy.
Frequently Asked Questions
Is there a size limit for Base64 encoding?
We support files up to 50MB. Note that Base64 output is about 33% larger than the original file.