How to convert QuickTime (MOV) to WebM
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Upload your file
Drag and drop a file or click to select one. Keep this page open while the file uploads and converts.
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Convert QuickTime (MOV) to WebM
NexMedia converts QuickTime (MOV) to WebM on its own servers. Processing time depends on the file size and how busy the queue is.
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Download the converted file
When the conversion finishes, the download appears on this page. Your converted file is kept for 2 hours, then deleted.
About QuickTime (MOV)
MOV is the QuickTime container format from Apple. MP4 was based on it, so the two share the same structure, but MOV is also used for editing codecs such as Apple ProRes.
iPhones and many cameras record MOV, and editors such as Final Cut Pro export it.
Outside Apple software, MOV files that use ProRes or other professional codecs often do not play without extra software.
Convert MOV to WebM online free, no account required — WebM is an open, royalty-free web video format with VP8, VP9 or AV1 video and Opus or Vorbis audio.
Change MOV to WebM without losing quality — convert MOV to WebM free in your browser.
Why won't my MOV file play on Windows or Android? QuickTime containers often carry Apple-specific codecs such as ProRes, so converting to MP4 with H.264 makes the video play everywhere.
About WebM
WebM is an open, royalty-free video format developed by Google and based on the Matroska container. It holds VP8, VP9 or AV1 video with Vorbis or Opus audio.
It is made for the web: all major browsers play it in the HTML video element, and it is common for screen recordings and short clips.
WebM allows only its own small set of codecs, so H.264 video or AAC audio has to be re-encoded to fit.
Why convert video to WebM for a website? Browsers play it without plugins, and VP9 or AV1 compresses smaller than H.264 at the same quality, so pages load faster.
What changes when you convert MOV to WebM
- The MOV is re-encoded into WebM at the default quality settings, so the result looks close to the original but is not bit-identical.
Settings you can change
Before you convert MOV to WebM, you can adjust: Video codec, Rate control, Quality (CRF), Video bitrate, Resolution, Width, Height, Scale fit, Frame rate, Encoder preset, Audio codec, Audio bitrate, Trim start, Trim duration, and Remove metadata.
Limits
Each plan sets a maximum file size and a number of conversions per day, and video and audio files also have a maximum length. Guests can convert files up to 100 megabytes and 5 per day; a free account raises this to 500 megabytes and 25 per day; paid plans go up to 100 gigabytes.
Your converted WebM file is kept for 2 hours, then deleted.
MOV to WebM: questions and answers
Does converting MOV to WebM reduce quality?
The MOV is re-encoded into WebM at the default quality settings, so the result looks close to the original but is not bit-identical.
What is the difference between MOV and WebM?
MOV is Apple's QuickTime video container. WebM is an open, royalty-free web video format with VP8, VP9 or AV1 video and Opus or Vorbis audio.
Can I change the settings when converting MOV to WebM?
Before you convert MOV to WebM, you can adjust: Video codec, Rate control, Quality (CRF), Video bitrate, Resolution, Width, Height, Scale fit, Frame rate, Encoder preset, Audio codec, Audio bitrate, Trim start, Trim duration, and Remove metadata.
Do I need an account to convert MOV to WebM?
No. You can convert MOV to WebM without an account; signing in raises the file-size and daily limits.
How long is my converted WebM file kept?
The WebM file you convert from MOV is kept for 2 hours, then deleted automatically.
When I convert MOV to WebM, is the video re-encoded?
The MOV is re-encoded into WebM at the default quality settings, so the result looks close to the original but is not bit-identical.
Will converting MOV to WebM change my original file?
No. The conversion reads your MOV and writes a new WebM file, leaving your original MOV file untouched.