How to Convert Video Formats Online (Free)
Different apps and devices want different video formats — a screen recording in WebM that won't play on your phone, a MOV that's too big to share, or a clip you just want as audio. The Video Converter changes a video from one format to another right in your browser, with no upload and no watermark.
Which video format should you use
MP4 (H.264) is the universal choice — it plays on virtually every phone, browser and editor. WebM is smaller and great for the web but less compatible. MOV is Apple's container, common from iPhones and Macs. MKV holds high-quality video well. If you only need the sound, convert straight to MP3.
How to convert a video
- Open the Video Converter and add your file. 2. Choose the target format — MP4, WebM, MOV, MKV, animated GIF or MP3. 3. Convert; the encoding runs on your device. 4. Download the result. Everything stays local, so even sensitive footage is private.
Common conversions people search for
WebM to MP4 (to play screen recordings on a phone), MOV to MP4 (to shrink and share iPhone clips), MKV to MP4 (for editor compatibility), and video to MP3 (to keep just the audio). For audio extraction specifically, the dedicated Video to MP3 tool gives you bitrate control.
Try the tool from this guide
Video Converter
Convert video to MP4, WebM, MOV, MKV, GIF or MP3.
Open Video ConverterFrequently asked questions
Can I convert WebM to MP4 for free?
Yes. Add the WebM file, choose MP4 as the target, and download — free, in your browser, with no watermark.
Does converting upload my video?
No. The conversion happens locally in your browser, so your video never leaves your device.
What formats are supported?
MP4, WebM, MOV and MKV in, and MP4, WebM, MOV, MKV, animated GIF or MP3 out.
Why convert to MP4?
MP4 with H.264 is the most widely compatible video format, playing on nearly every device, browser and social platform.
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