Video to MP4 Converter

Convert MKV, AVI, MOV, and WEBM videos to universally compatible MP4 files instantly in your browser.

Drop your Video file here

MKV, AVI, MOV, WEBM, FLV

Make Any Video Universally Playable

MP4 is the gold standard for video sharing. Whether you're uploading to YouTube, sharing on Instagram, or sending a video to a friend's phone, MP4 is guaranteed to work. Our converter effortlessly transforms problematic formats like MKV, AVI, and Apple's MOV into pristine, highly compatible MP4 videos directly in your browser.

Universal MP4 Export

Why Convert to MP4 Here?

Maximum Privacy

Convert personal family videos or confidential work files securely. The processing is done entirely on your machine.

High Fidelity Encoding

Enjoy zero visible quality loss. We rely on industry-standard H.264 video and AAC audio encoding.

No Upload Queues

Skip the slow server uploads. The conversion kicks off instantly using your own device's hardware power.

Total Compatibility

The resulting MP4 files are optimized to play smoothly across iOS, Android, Windows, Mac, and Smart TVs.

How this Video to MP4 Converter works

This universal video transcoding tool converts various video formats (including WebM, MKV, AVI, MOV, and FLV) into the highly compatible MP4 format. It uses FFmpeg WebAssembly to process the video entirely within your browser for ultimate privacy and speed.

Simply upload your source video file and start the process. The converter reads the input file and transcodes the video and audio streams using the H.264 codec (and AAC audio if enabled), which is the standard for web playback and is supported on nearly all devices, from smartphones and media players to smart TVs.

This converter is perfect for users struggling to open proprietary video formats on their devices, content creators needing to standardize their assets into MP4 files for editing software, or users looking to upload videos to platforms that only accept MP4 formats.

How to Use

Upload Video

Drag and drop or select your MKV, AVI, MOV, or WEBM file.

Convert to MP4

Click the Convert button to start the secure local encoding process.

Download MP4

Once the conversion reaches 100%, save your new MP4 file.

Example Usage

Easily convert an Apple MOV file into a universally playable MP4.

Input

vacation_video.mov

Output

vacation_video.mp4

Frequently Asked Questions

How does this MP4 Converter work?

The MP4 Converter securely loads your video file directly in your browser. Using WebAssembly, it re-encodes your video into the universally supported MP4 (H.264) format without sending any data to a remote server.

Which input video formats are supported?

You can convert almost any common video format to MP4. We support MKV, AVI, MOV, WEBM, FLV, and WMV files.

Is it really free and private?

Yes! The entire conversion process happens locally on your device. This guarantees 100% privacy for your sensitive or personal videos and means we don't charge any fees or impose daily limits.

Will the conversion take a long time?

Conversion speed depends primarily on two factors: the size and length of the video, and the processing power of your computer or phone. Modern devices can convert standard videos very quickly.

Will I lose video quality?

We use high-quality encoding presets to ensure your MP4 file looks virtually identical to the original video sources, maintaining crisp visuals and clear audio.

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The MP4 Converter is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.

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