Convert WMV to MP4 Offline — Windows Videos on Any Device

Step 1: Select Your WMV File

Open your WMV video — Windows Media Player recordings, corporate video exports, or presentation captures. No upload required.

Step 2: Choose Quality

Select High for archive-quality output, Medium for a balance of size and quality, or Low for fast sharing on email and messaging apps.

Step 3: Convert in Your Browser

FFmpeg.wasm decodes the WMV format and re-encodes it as H.264/AAC MP4 — all processing runs locally on your device, never touching a server.

Step 4: Download the MP4

Save the converted MP4 file directly to your device — ready for cross-platform playback or upload to any video platform.

Mac and iOS Incompatibility

WMV requires the Flip4Mac plugin on Mac — which is discontinued. Apple devices simply can't play WMV natively. MP4 works out of the box.

Linux Support

Linux users need the proprietary Windows Media codecs to play WMV — not always available. MP4 with H.264 plays natively on all Linux distributions.

Social Media Rejection

Most social platforms reject or poorly handle WMV uploads. Converting to MP4 first ensures your video is accepted and processed correctly.

Future-Proofing

Microsoft has largely abandoned WMV development. Converting your archive to MP4 ensures long-term playback compatibility on future devices.

Your video never leaves your device. No upload, no server, no data collection at any stage.

FFmpeg.wasm runs on your own CPU — no waiting for uploads or server queues.

Once the page loads, conversion works without any internet connection.