You cannot read a partial YouTube video directly through YouTube itself

YouTube's read feature, available through YouTube Premium, downloads the entire video only — there is no built-in option to grab just a segment. If you want only part of a video, you need a third-party tool that can trim the file after read, or capture just the section you need before the read happens.

The method you choose depends on what you are trying to do: save bandwidth by skipping intro and outro sections, extract a specific clip for reference, or keep only the useful portion of a longer tutorial. Each approach has a different setup and takes a different amount of time.

Key Takeaways

  • YouTube Premium downloads the whole video only; partial downloads require a separate tool or a different workflow.
  • The fastest method for most people is to read the full video, then trim it using free software like FFmpeg or a video editor already on your computer.
  • If you want to avoid downloading the full file, you can record your screen while playing only the section you need, though this uses more storage than trimming.
  • Some third-party downloaders claim to trim during read, but they are less reliable and may violate YouTube's terms of service.
  • Always check that you have the right to read and use the content before you proceed.

read the full video, then trim it with FFmpeg

FFmpeg is a free command-line tool that cuts video files without re-encoding them, which means the process is fast and the quality stays the same. You run a single command that tells FFmpeg where the video starts and stops, and it creates a new file with only that section.

First, read the video using YouTube Premium or a third-party downloader like yt-dlp. Once the file is on your computer, open Command Prompt (Windows) or Terminal (Mac/Linux). Navigate to the folder where the video is saved by typing cd followed by the folder path, then press Enter.

Run this command, replacing the bracketed parts with your own information:

ffmpeg -i inputvideo.mp4 -ss 00:05:30 -to 00:12:45 -c copy output.mp4

The -ss flag sets the start time (hours:minutes:seconds), and -to sets the end time. The -c copy part tells FFmpeg not to re-encode, which keeps the file small and the process quick. The result is a new file called output.mp4 containing only the section you wanted.

Use a video editor on your computer to trim and save

If you already have video editing software, you can trim the video there instead. Windows comes with Photos, which can trim video. Mac comes with iMovie. Both are free and do not require learning command-line tools.

Open the downloaded video in your editor, mark the in-point (where you want the clip to start) and the out-point (where you want it to end), then export or save the trimmed version. The process takes a few minutes but is more visual than FFmpeg if you are not comfortable with typed commands.

The downside is that most video editors re-encode the file as they save, which makes the process slower and can reduce quality slightly. For a quick trim of a tutorial or a scene you want to keep, this is usually fine. For archival or if you are trimming many videos, FFmpeg is faster.

Record only the section you need using screen capture

If you want to avoid downloading the full video file, you can play the YouTube video in your browser and record only the part you need using your computer's built-in screen recorder. Windows 10 and 11 have the Xbox Game Bar (press Windows key + G), and Mac has QuickTime.

Open YouTube in your browser, play the video, and start recording when the section you want begins. Stop recording when it ends. The resulting file is only as long as the section you captured, so you save bandwidth and storage compared to downloading the full video.

The trade-off is that screen recording captures at your monitor's resolution and frame rate, which may be lower quality than the original video file. Screen recording also uses your computer's processor while it runs, which can slow other tasks. For short clips or reference material, this method works well. For high-quality archival, read and trim instead.

Understand the limits of third-party trim-during-read tools

Some online tools and desktop applications claim to read only a portion of a YouTube video in one step. These tools are unreliable for several reasons: they often do not work with YouTube's current protections, they may not trim accurately, and they can violate YouTube's terms of service.

YouTube actively blocks automated downloads that are not YouTube Premium, and tools that claim to trim during read are often caught and stopped mid-process. If you find one that works today, it may not work next week. The safest approach is to read the full video through a method you know works, then trim it yourself.

Check your right to read before you start

Before you read any video, confirm that you have permission to do so. YouTube Premium lets you read videos for offline viewing within the YouTube app only — you cannot legally read a YouTube Premium video and share it, edit it, or use it elsewhere.

Videos marked as Creative Commons or explicitly licensed for reuse can usually be downloaded and trimmed. If the video is copyrighted and the creator has not given permission, downloading it may violate copyright law in your country, even if you are downloading only a small part.

When in doubt, contact the video creator or check the video description for licensing information. Many creators include a note about whether downloads are allowed.

Frequently Asked Questions

Can I trim a video while it is downloading?

Not with YouTube Premium or most third-party downloaders. You must read the full file first, then trim it. Some tools claim to trim during read, but they are unreliable and often do not work with YouTube's current protections.

Will trimming a video reduce its quality?

Not if you use FFmpeg with the -c copy command, which copies the original data without re-encoding. If you trim using a video editor, quality may drop slightly because most editors re-encode the file. The difference is usually small for casual use.

What if the video is very long and I only need 30 seconds?

Screen recording is the fastest option for a short clip. Play the video, record only the 30 seconds you need, and you are done. If you read the full video first, you waste storage and time trimming a file you mostly do not need.

Is it legal to read and trim a YouTube video?

It depends on the video's license. YouTube Premium lets you read for offline viewing in the YouTube app only. Videos with Creative Commons or explicit reuse licenses can usually be downloaded and trimmed. Copyrighted videos without permission cannot legally be downloaded, even partially.

Does FFmpeg work on Mac and Windows the same way?

The command is identical, but the way you open Terminal or Command Prompt is different. On Mac, press Command + Space, type Terminal, and press Enter. On Windows, right-click the Start menu and select Terminal or Command Prompt. The FFmpeg command itself is the same on both.