Cutting videos on a smartphone is a task that every second user faces. Some people need to adjust the video to the format Instagram Stories with aspect ratio 9:16, some need to remove unnecessary edges before loading into TikTok or YouTube Shorts, and others just want to remove the black bars on the sides. Unlike computers, where they use Adobe Premiere or Final Cut Profor this, on Android the process can be completed in literally a few taps - the main thing is to know which tools are suitable for this.
In this article we will analyze 5 ways to trim a video height and width: from built-in functions Google Photos to professional applications like CapCut i KineMaster. You will learn how to maintain video quality, avoid distortion, and even automatically adjust the video to popular social networks. And if you work with video often, you will find recommendations for choosing the optimal aspect ratio for different platforms.
Important: cropping is different from cropping. When cropping, you change frame sizes (reduce the height/width), and when cropping, you cut out a fragment from the center. This article will focus on the first option.
1. Trimming videos through Google Photos: an easy way without installing applications
Google Photos is one of the most underrated applications for basic video processing on Android. It comes pre-installed on most smartphones and allows you to trim videos without losing quality (provided you don't change the resolution). Here's how it works:
- Open Google Photos and select the desired video.
- Tap on the edit button (pencil icon).
- Go to tab
Crop(square icon with corners). - Drag the edges of the frame to change the width or height of the video.
- Click
Save a copyso as not to lose the original.
The advantage of this method is no watermarks and restrictions on video duration. However, there are no exact numerical values โโfor cropping, so for professional work it is better to use specialized applications.
If the video looks stretched after trimming, check the aspect ratio settings. Google Photos automatically applies gap filling, which can distort the image. To disable this, before saving, tap on the gear icon and select "Disable Filling."
Please note: Google Photos saves the video at the same resolution as the original, but if you greatly reduce the frame size, the final quality may deteriorate. For example, when cropping a video 1920ร1080 to a square format 1080ร1080 the actual resolution will be reduced to 1080ร608 (since the aspect ratio is preserved).
โ ๏ธ Attention: In some versions Google Photos the video trimming function may be hidden behind the โTry new editing toolsโ checkbox. If you do not see the tab Croppingupdate the application to the latest version.
2. Applications for precise cutting: CapCut vs KineMaster vs InShot If you need video (for example, for streams or commercials), standard tools will not be enough. In this case, specialized video editors come to the rescue. We tested three of the most popular applications and compared their capabilities:
If you need precise size adjustment video (for example, for streams on Twitch or commercials), standard tools Android won't be enough. In this case, specialized video editors come to the rescue. We tested three of the most popular applications and compared their capabilities:
| Application | Max. export permission | Support for aspect ratios | Watermark | Difficulty for beginners |
|---|---|---|---|---|
| CapCut | 4K (3840ร2160) |
9:16, 16:9, 1:1, 4:5, custom | No | Average |
| KineMaster | 4K (with a paid subscription) |
Any, including 21:9 | Yes (removed in Pro version) | High |
| InShot | 1080p |
9:16, 16:9, 1:1, 3:4 | Yes (removed upon purchase) | Low |
For most tasks we recommend CapCut this is a free application without watermarks, with support 4K and a user-friendly interface. To trim a video:
- ๐ฑ Set CapCut from Google Play and import the video.
- ๐ฌ Click on the clip in the timeline and select
Trim. - ๐ Enter exact width and height values in pixels or select a preliminary ratio (for example,
9:16for Instagram Reels). - โ
Export video without losing quality (select
Resolution: Original).
Important: In KineMaster and InShot, when cropping a video to non-standard ratios (for example, 2:1), a black margin may appear around the edges. To remove it, use the โBackgroundโ function and set the color to match the main tone. video.
3. Trimming video through VLC: an unexpected lifehack
Few people know, but the popular media player VLC can not only play video, but also edit it - including cropping by height and width. This method is suitable for those who do not want to install additional applications, but need it. in a more precise setting than in Google Photos.
Instructions:
- Open the video in VLC and click on the three dots in the upper right corner.
- Select
Video Editor(Video Editor). - Go to the
Cropping tab(Crop). - Specify values for
Left,Right,TopandBottom(in pixels). For example, to trim the video1920ร1080to1080ร1080, enterLeft: 420andRight: 420. - Save the project and export the video.
The main plus VLC is support batch processing. You can trim several videos at a time by setting the same parameters. However, the interface here is less intuitive than in specialized editors, so beginners may need time to master.
โ ๏ธ Attention: When trimming in VLC video is automatically transcoded, which may lead to loss of quality. If it is important for you to maintain the original resolution, use the setting Profile: Original in the export menu.
4. Automatic cropping for social networks: Instagram, TikTok, YouTube
If you create content for social networks, manually trimming each video can be too time-consuming. Fortunately, many applications (including CapCut and InShots) offer cropping templates here are the relevant aspect ratios in 2026:
- ๐ฑ Instagram Stories/Reels:
9:16(1080ร1920) - ๐ต TikTok:
9:16(1080ร1920) or1:1(1080ร1080) - ๐บ YouTube Shorts:
9:16(1080ร1920) - ๐ผ๏ธ Instagram Post:
4:5(1080ร1350) or1:1 - ๐ YouTube (classic video):
16:9(1920ร1080)
To automatically trim the video to the desired size format:
- B CapCut or InShot select a project template for a specific social network (for example, "Instagram Reels").
- Import the video - it will automatically adjust to the required ratio.
- If necessary adjust the cropping manually.
Tip: If your video has a non-standard aspect ratio (for example, 21:9 from an action camera), first crop it to 16:9and then adjust it to 9:16 for stories. This will help avoid severe distortion. data-i="160">Use 9:16 ratio (1080ร1920)
Use 9:16 ratio (1080x1920)
Make sure the duration does not exceed 10 minutes
Crop the black bars on the sides (if any)
Save the video in MP4 format with a bitrate of at least 5000 kbps-->
5. Trimming video without losing quality: technical nuances
One โโof the most common questions when trimming a video is how to avoid loss of quality. Unfortunately, it is impossible to completely preserve the original resolution when resizing the frame, but you can minimize losses. Here are the key rules:
- ๐ Crop to multiples. If the original video is
1920ร1080, crop to960ร540or1440ร810(divisors of the original resolution). - ๐ฏ Use even numbers for width and height (for example,
1280ร720instead1281ร721). - ๐ Do not enlarge size. If the video is originally
720p, cropping to1080pwill not improve the quality, but will only add artifacts. - ๐ Save in the original format. If the video was shot in
H.265 (HEVC), export in the same codec.
For maximum control over quality, use KineMaster with manual bitrate settings. Optimal values:
1080p: 8โ12 Mbps720p: 5โ8 Mbps4K: 20โ30 Mbps
Example settings for export to KineMaster:
Resolution: 1920ร1080Bitrate: 10 Mbps
Format: MP4
Codec: H.264 (AVC)
Frame rate: 30 fps (if the original is 30 fps)
โ ๏ธ Attention: When trimming video with high dynamic range (HDR) some applications (for example, InShot) can convert it to SDR, which will lead to loss of color gamut. Before exporting, check the color settings.
6. Trimming video on Android without installing applications: online services
If you do not want to download additional apps, you can trim the video directly in browser. There are several reliable online services that work directly with files on your device (without uploading to the server). The best of them:
- ๐ Clideo - supports cropping, rotation and changing the aspect ratio. Maximum file size: 500 MB.
- ๐ Kapwing - allows you to crop the video with pixel precision, add a background and text.
- ๐ Online Video Cutter - a simple tool without registration, but with a limit on video length (up to 10 minutes).
How to trim a video online:
- Open one of the services in the browser Chrome or Firefox.
- Upload the video from your device (click
Select file). - Select the cropping tool (
CroporResize). - Specify new dimensions or drag the frame manually.
- Download the processed video to phone.
The advantage of online services is no load on the smartphone processor. However, they also have disadvantages: file size restrictions, possible privacy problems (if the service uploads videos to its servers) and dependence on Internet speed.
How check if the video is uploaded to the online editor server?
Open the developer tools in the browser (in Chrome: three dots โ โFor Developersโ โ โDeveloper Toolsโ) Go to the โNetworkโ tab and see if requests for downloading files appear (for example, POST requests to the service domain). If so, your video is sent to an external one. server.
7. Common mistakes when trimming videos and how to avoid them
Even experienced users sometimes make mistakes that spoil the final video. Here are the most common ones and ways to prevent them:
| Error | Consequences | How to avoid |
|---|---|---|
| Cropping without maintaining proportions | Distortion of objects (stretching or shrinking) | Use the "Keep proportions" lock or enter dimensions manually with the correct ratio |
| Export in low bitrate | Artifacts, blur, "soap" | Set the bitrate to at least 5 Mbps for 720p and 8 Mbps for 1080p |
| Cropping with increasing size | Pixelization, loss of detail | Never increase the resolution above the original |
| Ignoring safe zones | Cropping important elements (for example, subtitles) | Before cropping, turn on the display of safe zones (in CapCut: Settings โ Show guides) |
Another typical problem is frame rate mismatch. For example, if the original video was shot on 60 fps, and you export it to 30 fps, the movement will always be jerky. check the settings FPS in the export menu.
If, after trimming the video, the video begins to โjerkโ or green artifacts appear, most likely the problem is in the codec. Try exporting the video in format MP4 c. codec H.264 is the most universal option for Android.
Always test the final video on another device before publishing. What looks normal on your smartphone screen may appear differently on a computer or TV due to differences in color processing.
FAQ: Answers to frequently asked questions
Is it possible to trim a video on Android without losing quality?
Completely without losing quality - no, since any change in frame size requires re-encoding. However, the loss will be minimal if:
- Crop the video with multiple values (for example,
1920ร1080โ960ร540). - Keep the original codec (
H.264orH.265). - Use a high bitrate when exporting (from 8 Mbps for Full HD).
The best applications for minimal losses: CapCut and KineMaster (in the "Export without compression").
How to trim a video to an exact pixel size?
For precise pixel cropping:
- Open the video in CapCut or KineMaster.
- Go to trim mode (
Crop). - Disable the "Maintain proportions" option (if you need a non-standard ratio).
- Enter the width and height values manually (for example,
1200and800for the ratio3:2). - Confirm changes and export video.
In VLC you can also specify the exact cropping values in pixels for each side (Left, Right, Top, Bottom).
Why did the video become stretched after trimming?
Stretching occurs when:
- You changed the aspect ratio, but did not disable the "Fill with Frame" option (in Google Photos or InShot).
- The application automatically added black fields, and you zoomed in to hide them.
- The original video had a non-standard ratio (for example,
21:9from the action camera), and you cropped it to16:9without adjusting the proportions.
Solution: Undo the cropping and repeat the process, making sure that the "Maintain proportions" option is turned on and the "Fill with frame" option is turned off.
Which application is best for trimming videos on a weak smartphone?
If your Androidsmartphone has less than 4 GB of RAM, avoid heavy editors like KineMaster or PowerDirectorThe best options:
- Google Photos - lightweight, without. load on the system.
- InShot โworks stably even on budget devices.
- VLC โif you need precise cropping without installing additional apps.
- Quik (from GoPro)โoptimized for weak processors.
Tip: before trimming, close all background applications and turn on power saving mode to avoid lags.
Is it possible to trim a video in Telegram or WhatsApp before sending?
No, neither Telegramnor WhatsApp do not have built-in tools for trimming videos. However, you can:
- Crop the video in advance in Google Photos or another editor, and then send.
- Use bots for trimming (for example,
@VideoToolBotin Telegram), but this is less convenient. - In WhatsApp before sending, you can only trim duration video (trimming), but not the frame size.