Video Converter: MP4, WebM, MOV, AVI

This tool processes your file entirely in your browser using WebAssembly. Nothing is uploaded to our servers.

How It Works

1. Choose Your File

Drag & drop or select the file you want to work with.

2. Processed in Your Browser

Everything happens locally on your device — your file is never uploaded anywhere.

3. Download Your Result

Get your finished file instantly, ready to save or share.

About Free Video Converter (MOV to MP4)

Different platforms, devices, and software expect different video formats and encodings, and a video that plays perfectly on one device can fail to open at all on another — converting between formats solves this compatibility gap without needing to re-record or re-edit the actual video content.

MP4 with H.264 encoding has become the closest thing to a universal standard — broadly compatible across devices, browsers, and platforms — making it a reasonable default target format when you’re unsure what a specific destination actually requires.

Converting between formats can involve some quality trade-off depending on the specific formats involved and their respective compression approaches — converting from a high-quality source format to a more heavily-compressed target format will show more visible difference than converting between two similarly efficient formats.

Frequently Asked Questions

How to convert MOV to MP4 online for free?

Choose your MOV file, select MP4 under Convert To and download the result. It is free and needs no signup. The video is re-encoded to H.264 video with AAC audio inside your browser, which takes longer than a simple container swap on large files.

How to convert MOV to MP4 on iPhone?

Open the page in your iPhone browser, choose the MOV video from your library and pick MP4. Phone memory is limited, so short clips work best. The tool is tuned for files under about 200MB, and conversion can take a while on a phone.

How to convert MOV to MP4 on Windows or Mac?

Open the page in any modern browser on Windows or Mac, pick the MOV file, set the output to MP4 and download. No software is needed. The first use downloads a video engine of about 30MB, which your browser then caches.

Which video formats can I convert to?

You can convert to MP4, WebM, MOV or AVI. MP4 is the most widely compatible choice. Every conversion re-encodes the video, and WebM uses VP9, which can be noticeably slower than MP4. The input can be any video your browser lets you select.