What's the best format for web embedding?

MP4 with H.264 is the safest default. WebM with VP9 or AV1 can be smaller on supporting browsers.

Can I extract audio to MP3 on this page?

This converter is video-out focused. Use our other free tools for audio-only workflows where available, or export video then strip audio with a dedicated utility.

Is there a file size limit?

There is no server cap because nothing is uploaded. Practical limits are your RAM and patience; very large files work best on desktop Chrome.

Do I need to install anything?

No install. Use a recent version of Chrome, Edge, or Safari for the best experience. Firefox may not support every conversion feature.

Free Video Converter Online — Convert MP4, MOV, AVI, WebM Instantly

Free Online Video Converter

Video converter — convert between MP4, MOV, WebM, MKV, and more privately and free. No uploads; everything runs locally in your browser.

Standard downloadLocal processingWorks in BrowserNo Upload Required

Drop a video here to convert

or click to browse

Input: MP4, MOV, WebM, MKV, MPEG-TS, and many other common video formats

Recommended next steps based on what you're working on — pick up where this tool leaves off.

Browse all free tools

How to convert video formats online

Select Your Video

Drop a video onto the page — MP4, MOV, WebM, MKV, MPEG-TS, and many other formats the reader supports. Your file stays on your device for the entire process.

Choose Your Output Format

Pick MP4 for universal playback, WebM for the web, MOV for Apple-friendly workflows, MKV for flexible archives, or MPEG-TS for transport-stream delivery. Choose a quality preset; the tool selects encodable codecs for your browser.

Convert and Download

Click convert. Processing runs entirely on your device in the browser. Download your new file when finished — free downloads include a standard download; upgrade to export clean files.

Key Features

Local processing

No upload: decoding and encoding run in your tab. Your files stay on your machine.

Smart remux when possible

When streams fit the target container, the tool can copy them instead of re-encoding, saving time and preserving quality.

Full transcoding when needed

Quality presets control bitrate when a full encode is required to match a new codec or container.

Hardware acceleration

On supported browsers and hardware, encoding and decoding can use GPU acceleration for faster processing.

Clear export choices

Free downloads include a standard download; paid users get premium download.

Common questions

Which video formats can I convert between?+

You can open many common formats (MP4, MOV, WebM, MKV, TS, and more) when the browser can decode them, and export MP4, WebM, MOV, MKV, or MPEG-TS from this page.

Will converting reduce my video quality?+

Remuxing without re-encoding preserves quality. When transcoding is required, quality follows the preset and bitrate you choose.

How fast is conversion?+

Remux-only jobs can be very quick. Full transcodes depend on resolution, length, and your hardware. A few minutes of 1080p video may take a couple of minutes on a modern laptop.

Can I convert MOV files from my iPhone?+

Yes, MOV clips are a primary use case. Export to MP4 for the widest compatibility when needed.