Shotcut

I used to be a pro video editor on Avid MediaComposer, decades ago, and amongst the free ones Shotcut is the first one I find that resembles a professional tool — and that works (OpenShot seems interesting but always freezes and crashes). It's a bit limited and stutters or doesn't always play additional audio tracks correctly until you reload the project, but hey, it's free! It's good enough for an occasional amateur job.

The link above is for ARM64 ('Apple Silicon') version ONLY, useful on M1 Macs, which of course require macOS 11.x. --> Intel X86 Macs must use the link for 'shotcut-macos-unsigned-210501.dmg' @ https://github.com/mltframework/shotcut/releases/download/v21.05.01/shotcut-macos-unsigned-210501.dmg - - IOW: NO combined version is being offered at this time.

This app seems quite useful even if you have some other video editing app... you could use it to convert videos to lots of different formats... including QuickTime Animation with an alpha channel and WebM with an alpha channel... for both of those, you just choose one of the included presets. You could also make your own preset for ProRes with an alpha channel if you choose the ProRes preset, make sure "Advanced" is selected, go to "Other" and change the text in the box to these lines: mlt_image_format=rgb24a pix_fmt=yuva444p10le vprofile=4444 vendor=apl0 movflags=+write_colr+faststart Then, just save that as a preset. It seems good for converting videos to HEVC and AV 1 too... it has the "Quality-based VBR" option were you can set the "Quality" and it changes it to CRF... HandBrake recommends something between 18-28 for HEVC (setting the "Quality" to something between 65% to 47% in Shotcut would set the CRF to that)... so the "Quality" set to 55% (CRF 23) will probably be a good balance for most videos and for more high quality videos you can raise it a bit or lower it a bit for lower quality videos... for lower resolution videos that would be upscaled, it would be a good idea to use somewhat higher quality settings than for 4k, if it's a high quality SD video. If you want a "slow" preset for HEVC or H.264 (to encode it more slowly to get a somewhat higher quality), just change one of the existing presets (just change the "preset=medium" to "preset=slow" under "Other") and save it as a new one. Also, you can edit WebM and even WMV directly in it, without having to convert it first. The interface maybe seems kind of "clunky", like it often seem to be the case with apps that are ported from Linux... but it's a useful app. So 5 stars for the usefulness... although the interface could probably be significantly improved... but at least it doesn't require XQuartz like Linux ports sometimes do... so it seems like a relatively decent Linux port.

The following statement in your overview is no longer true, so you might think about removing it: "Note: Since the application is not signed, you need to Control-click the app icon and choose Open from the context menu the first time you run it."

Note that the currently downloading version is 18.05.08, released May 8, 2018.

For those who, like me, are interested in, earlier versions are no longer available at: http://www.shotcut.org/bin/view/Shotcut/OlderBuildsOSX They are available at: https://github.com/mltframework/shotcut/releases By the way, there you can follow all the advancements of the project. You're served!

The App does what it needs to, but it is not as intuitive as other video packages. But those packages cost money. So, if you’re willing to learn a less Mac-like way of operating when selecting ranges, etc. , you’ll probably be very happy with the plethora of control you have over exported files. The UI knocks off a full star and a half, but if you don’t care about the UI, it’d rate a 5.

This editor is good enough. It is free but it does everything I need in video editing and the process is simple. I also like it is cross-platform so I can use it on both my machines, Mac and Windows which is very convenient for me. A lot of features are available.

best free video editor... works very well on Sierra and MBP 2016

Note to Developer:
on the home page it says requirements for OS X is 10.8+. On this MacUpdate page it still says 10.6 or later.

It appears Shotcut is using the Qt version 5 framework. For all those with OS X 10.6, note that Qt 5 is no longer tested against 10.6.
http://doc.qt.io/QtSupportedPlatforms/index.html#qt-5-4
And in case some of you don't know, by 'Qt' , does NOT mean QuickTime, it means the Qt development framework that allows you to write programs using the same code that will run on OS X, Windows and Linux. Calibre is a well known, widely used app you may have heard of that also is built using Qt.

Excellent Software. (Almost) easy to use, many export formats

A bit of a steep learning curve for someone who's not an expert on video editing tools but amazingly powerful and full featured for a free app (but donations are possible - mine will be on its way very soon!) Thanks to the dev for all his hard work...

I've searched for a software to edit .TS files recorded on my sat receiver for quite some time now. I used to convert it into some editable format using handbrake, then edit out start, end and commercials and finally convert it into MPEG/H.264 or the likes. I also tried Wondershare software which was a rather disappointing experience. Then I stumbled on this piece of software and it just does it for me. It imports .TS files via Finder mounted share off of my sat receiver just fine. I can frame-exact place in and out-markers, add sections to the timeline or the playlist then finally export to a couple dozen video output formats. Okay, the UI could be a bit more simple especially the selection of encoding codecs but other than that this is a truly fine piece of software. @Developer: Thank you very much for the work and effort you've put into this software! I really do appreciate it.

The latest version at the web site is 15.01.

Actual version is 14.11.01: Release 14.11 Sat, 01 Nov 2014 20:15:00 +0000 The new version 14.11 of Shotcut is now available for download with the following enhancements in addition to the usual bug fixes: -The HTML5 features are finally available on Windows! -Add source code editing to the HTML editor. -WebGL logoAdd 3D Text filter based on WebGL, typeface.js, and three.js. -Add support for DirectShow devices on Windows in the Open Other dialog. -Add the Opus audio codec. -Change the VP9 WebM preset to use the Opus audio codec. -Add support for the #localtime# keyword to the Text filter (no button yet). -Restart instead of simply closing the app when changing the GPU or language settings. -Change the Redo keyboard shortcut to Ctrl+Y on Windows only. -Save file paths in MLT XML with relative names for assets in the same folder or sub-folder. This makes it easier to use a relocatable project folder. -Add scale and offset parameters and a preset widget to the Rotate filter. Usually after rotating a video, part of the image has been clipped. These new parameters provide control for that clipping processing including no clipping. -Add Italian translation. Remarks: I'm not the developer, but I've just installed the actual version and missed that information on MacUpdate

Release 14.05.02 does not work on 10.6 - Frozen at the launch plugin step !

Release 14.05.02 does not run on 10.6.x - frozen at the launch plug-in step... !

This version and the previous one do work for me, running on a MacBook 13" late 2007 with OS X 10.7.5 and these QT plugins: AC3MovieImport AppleIntermediateCodec AppleMPEG2Codec Elgato Turbo EyeTV MPEG Support mp4vEncoder Perian x264Encoder xvidEncoder

it could be nice if this application could start on 10.6 !!!! This app does not pass the load plugin step... and can not start !!!!

It does not work at all. It starts and quits at the same time.