LosslessCut
LosslessCut
2.3.0

3.6

LosslessCut

LosslessCut

2.3.018 June 2019

Tool for lossless trimming/cutting of video and audio files.

LosslessCut
Free
18 June 2019

3.6

See all reviews (4)
DownloadMacUpdateInstall with MacUpdate

Downloaded and installed 815 times

Category:

Multimedia Design

Video

Developer Website:
LosslessCut

LosslessCut

2.3.018 June 2019

Tool for lossless trimming/cutting of video and audio files.

Overview

LosslessCut is a simple and ultra fast cross platform tool for lossless trimming/cutting of video and audio files. Great for saving space by rough cutting your large video files taken from a video camera, GoPro, drone, etc. It lets you quickly extract the good parts from your videos and discard many gigabytes of data without doing a slow re-encode and thereby losing quality. It extremely fast because it does an almost direct data copy. It uses the awesome ffmpeg (included) for doing the grunt work.

Features:
  • Lossless cutting of common video and audio formats
  • Take full-resolution snapshots from videos in JPEG/PNG format
  • Change rotation/orientation metadata in videos. Great for rotating phone videos that turns out the wrong way without actually re-encoding the video.
  • Manual input range of cutpoints
  • Can include more than 2 streams or remove audio track (optional)

What's new in LosslessCut

Version 2.3.0:
  • Upgrade file-type to fix mp4/mov detection
  • Fix for TS with unknown streams

Requirements for LosslessCut

  • OS X 10.9.0 or later

4 Reviews

Rate this app:

29 January 2019

Most helpful

I think I'm gonna love this app! :-) It doesn't support the .ts files, but if you remux them into mp4 before, without converting, you can trim them! — I've just made one fast trial and there doesn't seem to be any issue. It's probable a marginal use for most of the people but for me it means a lot! ;-) 4 stars only because commands could be easier and a manual would not be a luxury — i.e. there doesn't seem to be commands for moving the playhead to keyframes, neither by 1s/10s, for example.
Like
Version 2.1.0
10 July 2019
I was excited to find this app, as the description makes it seem perfect: I have an mp4 from which I'd like to losslessly trim about 10 seconds at the top.

So, I launch LosslessCut, I find the precise "cut start," then I export the video. But the exported video starts about a second *before* the location I selected. Thinking this might be a quirk of the software, I moved my cut start to a second later—but the exported video remained unchanged. In fact I kept moving the start point later and later, and it wasn't until I had moved it a full 5-6 seconds later that it moved at all—of course to a point that's now too late!

I realize it's free software, and I truly appreciate that. But the phrase "you had one job" comes to mind. If edits aren't precise, that *literally* defeats the (one) purpose of the app.
Like
Version 2.3.0
1 answer(s)
Soundsgoodtome
10 July 2019
Well, I came back, just a few minutes later, to edit my review, but the site won't let me.

Although LosslessCut comes with a few documents, such as license info and an odd text document that lists the (incorrect) version number, it comes with NO info about the source of the app.

After doing some digging, I found the GitHub site (https://github.com/mifi/lossless-cut), where I found the following disclaimer:

"Cutting times are not accurate and will be "rounded" to the nearest keyframe. In the future I plan on showing keyframes in the timecale [sic], and [plan to] eventually implement a 'smart cut' feature that re-encodes the part before the keyframe."

So, that explains the behavior I reported. It's just frustrating that I had to go *digging* for that info. Had that fairly major caveat been explained in the app's description, I'd have known what I was getting myself into.

Again, I realize it's freeware, and this guy appears to be working on this singlehandedly. Who knows when he'll get around to the fix, but at least now I have more info. As such, I came here intending to change my rating to 3 stars, but as I stated previously, the site won't let me.
Like
18 June 2019
I gave another trial for the new version and discovered that LosslessCut integrates a fast temporary conversion utility that allows you to work with any unsupported format: the editing uses the converted version but the actual edits are made using the original format! And it keeps all tracks even subtitles. A really great feature! (that old video editors will recall as what was used in the early days of digital editing ;-) ) Things that I still miss though: keyframes support and customizable shortcuts — the current shortcuts are absurd on a French keyboard: moving 1 frame back uses the coma and 1 frame forward uses the numeric keypad dot... LosslessCut might become a welcome replacement for MPEG Streamclip.
Like
Version 2.3.0
30 January 2019
Like
Version 2.1.0
29 January 2019
I think I'm gonna love this app! :-) It doesn't support the .ts files, but if you remux them into mp4 before, without converting, you can trim them! — I've just made one fast trial and there doesn't seem to be any issue. It's probable a marginal use for most of the people but for me it means a lot! ;-) 4 stars only because commands could be easier and a manual would not be a luxury — i.e. there doesn't seem to be commands for moving the playhead to keyframes, neither by 1s/10s, for example.
Like
Version 2.1.0
1 answer(s)
Aargl
29 January 2019
Going to the github repository, I see that typing h reveals the shortcuts, and indeed there are for: "Seek backward 1sec & 1/60sec, Seek forward 1sec & 1/60sec".
Well, it would be nice to add an option for countries where the norm is 1/50sec. ;-) — and why not a customization for the shortcuts?
Like
Free

3.6

Category:

Multimedia Design

Video

Developer Website:
DownloadMacUpdateInstall with MacUpdate

Downloaded & Installed 815 times

Free

3.6

Category:

Multimedia Design

Video

Developer Website:
DownloadMacUpdateInstall with MacUpdate

Downloaded & Installed 815 times

Don't like new MacUpdate? Back to old design.

4 Reviews

Rate this app:

29 January 2019

Most helpful

I think I'm gonna love this app! :-) It doesn't support the .ts files, but if you remux them into mp4 before, without converting, you can trim them! — I've just made one fast trial and there doesn't seem to be any issue. It's probable a marginal use for most of the people but for me it means a lot! ;-) 4 stars only because commands could be easier and a manual would not be a luxury — i.e. there doesn't seem to be commands for moving the playhead to keyframes, neither by 1s/10s, for example.
Like
Version 2.1.0
10 July 2019
I was excited to find this app, as the description makes it seem perfect: I have an mp4 from which I'd like to losslessly trim about 10 seconds at the top.

So, I launch LosslessCut, I find the precise "cut start," then I export the video. But the exported video starts about a second *before* the location I selected. Thinking this might be a quirk of the software, I moved my cut start to a second later—but the exported video remained unchanged. In fact I kept moving the start point later and later, and it wasn't until I had moved it a full 5-6 seconds later that it moved at all—of course to a point that's now too late!

I realize it's free software, and I truly appreciate that. But the phrase "you had one job" comes to mind. If edits aren't precise, that *literally* defeats the (one) purpose of the app.
Like
Version 2.3.0
1 answer(s)
Soundsgoodtome
10 July 2019
Well, I came back, just a few minutes later, to edit my review, but the site won't let me.

Although LosslessCut comes with a few documents, such as license info and an odd text document that lists the (incorrect) version number, it comes with NO info about the source of the app.

After doing some digging, I found the GitHub site (https://github.com/mifi/lossless-cut), where I found the following disclaimer:

"Cutting times are not accurate and will be "rounded" to the nearest keyframe. In the future I plan on showing keyframes in the timecale [sic], and [plan to] eventually implement a 'smart cut' feature that re-encodes the part before the keyframe."

So, that explains the behavior I reported. It's just frustrating that I had to go *digging* for that info. Had that fairly major caveat been explained in the app's description, I'd have known what I was getting myself into.

Again, I realize it's freeware, and this guy appears to be working on this singlehandedly. Who knows when he'll get around to the fix, but at least now I have more info. As such, I came here intending to change my rating to 3 stars, but as I stated previously, the site won't let me.
Like
18 June 2019
I gave another trial for the new version and discovered that LosslessCut integrates a fast temporary conversion utility that allows you to work with any unsupported format: the editing uses the converted version but the actual edits are made using the original format! And it keeps all tracks even subtitles. A really great feature! (that old video editors will recall as what was used in the early days of digital editing ;-) ) Things that I still miss though: keyframes support and customizable shortcuts — the current shortcuts are absurd on a French keyboard: moving 1 frame back uses the coma and 1 frame forward uses the numeric keypad dot... LosslessCut might become a welcome replacement for MPEG Streamclip.
Like
Version 2.3.0
30 January 2019
Like
Version 2.1.0
29 January 2019
I think I'm gonna love this app! :-) It doesn't support the .ts files, but if you remux them into mp4 before, without converting, you can trim them! — I've just made one fast trial and there doesn't seem to be any issue. It's probable a marginal use for most of the people but for me it means a lot! ;-) 4 stars only because commands could be easier and a manual would not be a luxury — i.e. there doesn't seem to be commands for moving the playhead to keyframes, neither by 1s/10s, for example.
Like
Version 2.1.0
1 answer(s)
Aargl
29 January 2019
Going to the github repository, I see that typing h reveals the shortcuts, and indeed there are for: "Seek backward 1sec & 1/60sec, Seek forward 1sec & 1/60sec".
Well, it would be nice to add an option for countries where the norm is 1/50sec. ;-) — and why not a customization for the shortcuts?
Like