You shot a great video in landscape mode, but now you need it vertical for TikTok. Or maybe there's a stray object at the edge of the frame you want to remove. Or you need a perfect square for your Instagram feed. The solution to all of these is cropping — cutting away part of the video frame to keep only what matters.
Unlike resizing (which changes the overall resolution while keeping everything visible), cropping removes portions of the frame entirely. It's one of the most common video edits, and you can do it for free in your browser with VideoTools Video Cropper.
Cropping vs. Resizing — What's the Difference?
These two operations are often confused, but they do very different things.
Cropping means selecting a region of the video frame and discarding everything outside it. If you have a 1920x1080 landscape video and crop the center into a 1080x1080 square, the left and right edges are permanently removed. The resulting video shows less of the scene, but the visible portion stays at full quality.
Resizing means changing the dimensions of the entire frame. If you resize that same 1920x1080 video to 1080x1080, the entire image is squeezed to fit — nothing is removed, but everything looks compressed and distorted. To resize without distortion, you'd use letterboxing (black bars), which keeps the content intact but wastes screen space.
The key distinction: crop removes content from the edges. Resize changes the scale of everything. If you want to change your video's aspect ratio while keeping the most important part of the frame, crop is the right tool. If you just need to change the resolution without losing any content, use the Video Resizer instead.
Best Aspect Ratios for Each Platform
Knowing the right aspect ratio before you crop saves time and ensures your video looks native on each platform.
| Platform | Aspect Ratio | Use Case | |----------|-------------|----------| | TikTok / Reels / Shorts | 9:16 | Vertical video | | Instagram Feed (Square) | 1:1 | Square posts | | Instagram Feed (Portrait) | 4:5 | Portrait posts | | YouTube / Standard | 16:9 | Landscape video | | Cinematic | 21:9 | Widescreen / letterbox effect |
The most common crop is 16:9 to 9:16 — converting a standard horizontal video to vertical format for short-form platforms. The second most common is cropping to 1:1 or 4:5 for Instagram feed posts.
How to Crop a Video Online (Step by Step)
Here's how to crop a video using the free VideoTools Video Cropper:
Step 1: Open the Video Cropper. Go to VideoTools Crop tool in your browser. No account, download, or installation required.
Step 2: Upload your video. Drag and drop your video file onto the upload area, or click to select it. MP4, MOV, WebM, AVI, and MKV are all supported. Processing happens entirely in your browser — your file never leaves your device.
Step 3: Select a preset aspect ratio or go freeform. Choose from presets like 9:16 (TikTok), 1:1 (Instagram Square), 4:5 (Instagram Portrait), 16:9, or 21:9. Or select "Free" for a completely custom crop area.
Step 4: Position the crop frame. Drag the crop box to center it over the part of the video you want to keep. Use the corner handles to fine-tune the size. You can also enter exact pixel values for X, Y, width, and height if you need precise control.
Step 5: Click Crop and download. Hit the crop button and wait for processing to finish. Once done, download your cropped video as an MP4.
That's it — five steps, no watermark, no sign-up, no file upload to any server.
Common Cropping Scenarios
Landscape to Portrait (16:9 to 9:16). This is the single most common crop. You have a YouTube-style horizontal video and want to post it on TikTok, Instagram Reels, or YouTube Shorts. Select the 9:16 preset, then drag the crop area to center it on your subject. Keep in mind that you're keeping less than half of the original frame width, so make sure the important action is centered.
Removing black bars. Screen recordings, older videos, and some camera apps produce footage with black bars on the sides or top and bottom. Cropping these away gives you a cleaner frame that fills the entire player. Use the freeform crop and drag the edges inward until the black bars are excluded.
Cutting out unwanted elements. Sometimes the edge of your frame catches something you don't want — a bystander, a piece of equipment, a messy background. Cropping lets you trim that edge away without re-shooting. Just position the crop box to exclude the problem area while keeping your subject properly framed.
Instagram 1:1 Square. Horizontal videos look awkward in the Instagram feed, which favors square or 4:5 content. Crop your 16:9 video to 1:1, centering it on the subject, and it'll look like it was shot for Instagram. For even more vertical space, try the 4:5 preset — it takes up more screen real estate in the feed without going full vertical.
Tips for Better Cropping
Start with the highest resolution source. Cropping reduces your video's resolution because you're using a smaller portion of the frame. If you crop a 1920x1080 video to 9:16, the result is roughly 607x1080. Starting from 4K (3840x2160) would give you 1215x2160 after the same crop — a much sharper result. Always use the best source you have.
Keep the subject centered when shooting. If you know you'll need to crop your video later (for example, shooting one video for both YouTube and TikTok), frame your subject in the center. This gives you the most flexibility when cropping to different aspect ratios.
Check for text and overlays near the edges. If your video has text, subtitles, logos, or UI elements near the edges of the frame, preview your crop carefully. These elements are easy to accidentally cut off, especially when switching from landscape to portrait.
Compress after cropping if needed. Cropping produces a new video file that may be larger or smaller than the original depending on the content. If the result is too large for your platform's upload limit, run it through a video compressor after cropping. For platform-specific file size advice, see our guide on compressing videos for TikTok.
FAQ
Can I crop a video without black bars? Yes. Cropping removes parts of the frame entirely — no black bars are added. The output contains only the region you selected. If you want to keep the entire video visible with black bars added around it, that's a resize operation — use the Video Resizer with Fit mode instead.
How do I crop a video for Instagram Stories? Use the 9:16 aspect ratio preset in the Video Cropper. Position the crop area over the most important part of your video. This is the same ratio used by TikTok and YouTube Shorts, so one crop works for all three platforms.
Does cropping make the video lower quality? Cropping reduces the resolution because you're keeping a smaller portion of the original frame, but the pixels within the cropped area remain at their original quality. No compression artifacts are added to the cropped region. To minimize quality loss, start with the highest resolution source available.
Can I crop and resize at the same time? It's best to do these as separate steps. Crop first to remove unwanted areas, then use the Video Resizer to adjust the final resolution if needed. This gives you more control over each operation and avoids unexpected results.