ShotCut: How to Export Video in Full lossless Quality

In this video tutorial, I show you how to make sure that every time you make a video using ShotCut, that it doesn't downgrade the quality of the video every time you encode it.
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How do I edit/cut a video without losing its quality and keeping the size around same?

Answer 1
Depends on the codec the video is encoded with. Generally, consumer devices use Long-GOP codecs, which means that they store keyframes and then just record or interpolate the differences between keyframes. These codecs are hard to re-compress without losing quality as a result.
If the cuts are simple (like just trimming the start and end of the video), you could try using VideoReDo and see if it can work with your footage. It would still likely have to create new keyframes where you cut (which would be recompressed), but the rest of the footage should remain exactly the same. Grab the trial version to see it this will work for you or not.
VideoReDo MPEG Video Editor
If you need to do more complicated editing, however, you're basically out of luck. You can keep quality loss to a minimum, but you will always lose some quality when you export your edited video unless you export to an uncompressed codec (which will have a massive filesize increase). If you can deal with moderately increased filesize, however, your best bet might be to export your edit using the H.264 or HEVC (H.265) codecs with higher bitrate settings. Just about any pro editing program will let you export in either of these codecs, or (if you can stand sluggish performance and the occasional crash), Shotcut can do it for free.

[viserionclips]

You know when you click on a tutorial that is less than a minute long, it's going to be helpful! Thank You!

[AlexClementine]

Finally looked it up after two years of using Shotcut and I really wish I did it sooner. It was to 55%. I feel betrayed by a friend lol Thank you so much for this tutorial!

[DaGriMReeFaH]

All my YouTube videos were poor quality and I could not figure out why? I learned something today in less than 2 minutes. Thank you

[reynaldocaruso]

mine was set to 55% omg, been using his for a year now

[tshuxeng]

when it's set to 100%, the exported file becomes 2-4x larger than the original

[tuffshiny]

It's worth pointing out that after following these steps, if your video still looks rubbish, it may be the media player you're using to watch it. Mine looked awful in VLC but instantly brilliant in my laptop's dedicated player. Good luck!

[yourlocalcommie]

When i set it to 100% and then watch the exported video its just a black screen with audio, theres no video even though its an mp4 file

[Gawron..]

Unfortunately, this programme does not have a lossless save option. If it did, there would be a "copy" option and the resulting file would be the same size as the original.
What is on the video is also a conversion but with a very high bitrate and the files will be larger than the original.

[flyte]

that clip of a panda on the attack is fascinating

[EnuelZ]

Bruh, I saw that, but I though "Nah, must be for something else"
Thanks, man, now I know I'm wrong.

[mickhernandez]

i was confused why the video that i downloaded was hd and after i export it was like not the same quality

[asuraretired]

Thank you so much!, Now i can upload videos with HD! I Subscribed!!!

[DrDubs]

This didn't work for me. My original video with 360p gets downgraded to 240p once it is uploaded to YouTube.

[JosephJordan]

Wow this couldn’t have been more helpful thank you

[zacworld]

When I click Export I don't get a window like you show so there is no codec tab or anything that resembles one.

[_eggs_bene]

do 85% not 100%, some programs cant use higher than 85% and the quality difference isnt that noticeable between them anyway

[gulhrmferreira]

damn, that's how every video tip should be, thanks man!

[MorphMe]

Nice little video...By the way, the quality if this video is excellent, so you must be correct in you analysis.

[scocro]

When ever i set it to 100% quality it renders but when I go to file explorer it's a black screen and it won't play the video. Help (This doesnt happen when i use constant bitrate)

[reinharle]

Need to have Stock on Standard, in my case quality = 100% fails with all H.264 profiles