Clipwing

Turn an MKV into an MP4 in seconds

Drop in an MKV from OBS and get an MP4 you can edit and share. It all happens in your browser, so nothing gets uploaded

Drop your video here

or click to choose a file. MP4, MOV, WebM, MKV or audio, up to 2 GB

Your file isn’t uploaded

Your browser does all the work, so your video stays on your computer

No quality lost when it can be

If the new format can hold the picture as it is, it is copied, not encoded again

Free, no sign-up

No account, no watermark, no limits. Convert as many files as you need

How it works

  1. 1

    Drop in your file

    An MKV from OBS, a camera or a download, up to 2 GB. It opens right away, because it isn’t uploaded anywhere

  2. 2

    Check it’s MP4

    MP4 is already picked. OBS records H.264 and AAC, so the picture and sound are copied over untouched. Anything else is encoded as H.264

  3. 3

    Convert and download

    Your MP4 plays right on the page, with its size next to the MKV’s. Click Download and it is yours

Free online MKV to MP4 converter

Questions people ask

No. Your browser converts it right on your computer, so nothing is sent anywhere. It works for private and unreleased videos too, and with no wait for an upload.
Yes, for H.264 or HEVC recordings: the picture and sound are copied into an MP4 as they are, in seconds. It also works when you don’t have OBS at hand, and encodes anything an MP4 can’t hold.
An MKV survives a crash or a full disk: you keep everything recorded up to that moment. An MP4 cut short can’t be opened. So record in MKV, then convert to MP4 for editing and sharing.
The MP4 gets the main picture and sound track. If you recorded your mic and game sound on separate tracks, only the first one is kept.
Often not at all. When the new format can hold your picture and sound as they are, they are copied over untouched, which takes seconds. When they have to be encoded again, it happens at high quality by default, and never at a much higher bitrate than your file had, so it doesn’t balloon in size.
MP4, MOV, M4V, WebM, MKV, TS and 3GP videos, and MP3, WAV, M4A, AAC, OGG and FLAC sound, up to 2 GB. AVI and WMV can’t be opened in a browser yet.
Yes. No account, no watermark, and no limit on how many files you convert.

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