Free online MP4 Video converter supporting multiple output formats. Files are processed locally in your browser — no uploads, 100% private.
Drop your .MP4 file here
or click to browse from your device
100% browser-based — no server uploads, no cloud processing
Free forever — no account or subscription required
Supports batch conversion for multiple files at once
Works on any device — desktop, tablet, and mobile
Results available in seconds — no server queue or wait time
Files are cleared immediately after processing for maximum privacy
H.264/MPEG-4 — the universal video container standard
Universal device and platform support
Excellent H.264 compression efficiency
Supports adaptive streaming and progressive download
Compatible with all major social platforms
Re-encoding causes quality loss
H.264 may require licensing fees in some commercial contexts
Large file sizes for high-resolution or long content
Online video hosting and social media uploads
Video editing projects and source files
Streaming and progressive web video delivery
Long-term video archiving
Use H.264 with CRF 18–23 for an excellent quality-to-size ratio
Set audio to AAC 128 kbps for most content; 192 kbps for music
Add the -movflags faststart flag to enable web streaming from the start
H.265 achieves 40–50% better compression but has broader compatibility issues
Drag & drop your file or click to browse
Files are processed instantly in your browser
Save your converted or processed file
Upload your MP4 file using the drop zone above. Select your target output format and the conversion happens instantly in your browser.
Completely safe. Our converter runs 100% in your browser — your MP4 file never leaves your device or touches any server.
Select your file to see all supported output formats for MP4. Most popular formats in the same category are available.
Free, instant, and 100% private. Your files are processed locally in your browser.