compressvid.ioChange video dimensions for Instagram, TikTok, YouTube or any player. Pick a preset or type exact pixels — free, no watermark, nothing to install.
Need to cut away edges instead of scaling? Open Crop Video
A clip that looks fine on a desktop can be cropped by a feed, letterboxed in a player, or rejected by a platform’s preferred aspect ratio. Resizing scales the picture to the box you need — 1080p for YouTube, 1:1 for a feed post, 9:16 for Reels — without redrawing the edit. Pick a preset or type exact pixels, then download a clean MP4. Free, no watermark, nothing to install.
Platform rules change, but these boxes cover most posts. Match the dominant use of the clip.
| Where it is going | Typical size | Aspect |
|---|---|---|
| Instagram feed | 1080×1350 (portrait) or 1080×1080 (square) | 4:5 or 1:1 |
| Instagram Reels / TikTok / Shorts | 1080×1920 full-screen vertical | 9:16 |
| YouTube | 1920×1080 or 1280×720 | 16:9 |
| Web / email embeds | 1280×720 or 854×480 keeps weight low | 16:9 |
| Square posts & thumbnails | 1080×1080 | 1:1 |
This tool scales the picture (aspect ratio is kept so faces do not stretch). To cut edges away instead, use the Crop tool. To shrink file size without changing pixels, use the Compress tool. Limits checked October 2026.
Three steps in the browser. Presets cover most jobs; custom pixels cover the rest.
Drop in an MP4, MOV, WebM, MKV or AVI. The preview loads so you can see the source dimensions before you choose an output.
Tap 1080p, 720p, 1:1, 4:5 or 9:16 — or type a custom width and height. Keep-aspect keeps the image from stretching when you change one side.
Press Resize video. The export is a standard MP4 scaled to fit your target box — no watermark, nothing to install.
They solve different problems. Using the wrong one wastes a re-encode.
| Goal | What changes | Use this |
|---|---|---|
| Fit a platform’s aspect / pixel box | Output dimensions change; whole frame stays visible (letterboxed if needed) | Resize video (this page) |
| Cut away edges / reframe subject | Pixels outside the frame are discarded | Crop video |
| Hit a file-size limit (MB) | Dimensions can stay; bitrate drops | Compress video |
| Shorten the timeline | Duration drops; dimensions stay | Trim video |
| Silence the clip | Audio track removed; picture untouched | Mute video |
If the platform complains about file size after resizing, run the result through Compress. If the subject is too small after scaling, crop first to the region you care about, then resize.
A focused scaler with the presets people actually search for — Instagram, TikTok, YouTube — plus exact pixel control when you need a non-standard box.
1080p, 720p, 480p, 1:1, 4:5 and 9:16 cover most social and web cases in one tap.
Type any width and height between 16 and 10000. Keep-aspect locks the ratio while you drag numbers.
Output scales to fit the target box so faces and logos do not stretch. Leave height empty to scale by width only.
Guests can resize daily without signing in. Signed-in users get monthly credits for larger or more frequent jobs.
Straight answers before you scale.
Upload, pick a preset, download — free and no watermark.