Cropzen is a free video cropper for Android: crop a clip to 9:16, 1:1, 4:5 or 16:9, trim it and export up to 1080p with no watermark. Open a video, choose a ratio, drag and pinch the frame, tap Apply, then Export. It runs on your phone with no account.
What it does
Cropzen is a video cropper and trimmer for the clips you want to share today. Open a video, reframe it for the platform you’re posting to, trim its beginning and end, and export. Everything is processed on your phone, with no account or watermark.
Highlights
- Crop video: use a freeform crop or lock to an aspect ratio
- Reframe with a pinch: snap to 9:16, 1:1, 4:5 or 16:9 for Reels, Shorts, TikTok or the feed
- Frame-accurate trim: drag to the exact frame you want; a plain cut skips re-encoding
- Straighten & rotate: rotation wheel, flip, and 90° turns
- Batch crop and resize (Pro): apply the same aspect ratio to several videos from a shoot
- More tools: merge clips, change speed, reverse, mute, compress, save a GIF or extract audio
- Blur and watermark: blur faces or plates, or add a corner watermark of your own
- Free 1080p export: no app watermark; Pro removes ads and adds 4K
- On-device processing: your videos stay on your phone
Made for
- Quickly reframing clips for Reels, Shorts and TikTok
- Trimming the dead air off the front and back of a take
- Anyone who wants a fast crop and trim without a full video editor
How to crop a video on Android with Cropzen
- Tap Pick video and choose a clip from your gallery.
- Open the Crop tool and tap a ratio chip, for example 9:16 (Vertical, Stories).
- Drag and pinch the picture until the subject is inside the frame.
- To keep the whole picture, tap Fit (Whole video) instead of cropping. This adds bars around the video.
- Tap Apply, then Export, pick a quality (1080p is free) and save.
Crop fills the frame and removes the edges. Fit keeps every edge and adds bars. A 1920 x 1080 clip cropped to 9:16 keeps about 608 x 1080 pixels, a third of its width. See the worked example with the pixel math and how to resize without cropping.
Aspect ratio presets
| Preset | Ratio | Typical use |
|---|---|---|
| Vertical, Stories | 9:16 | Full-screen vertical video |
| Feed post | 4:5 | Tall feed video |
| Square | 1:1 | Square posts |
| Landscape | 16:9 | Widescreen video |
| Round video | 1:1, up to 60 s | Round video messages; trimmed to 60 s |
| Original | Source ratio | Trim or compress without reshaping |
| Free | Manual | Drag the frame to any shape |
| Custom | W : H | Type your own ratio; quick picks for 4:3, 3:4, 2:3 and 21:9 |
Unsure of the numbers for a ratio? The aspect ratio calculator gives the crop box for any source size.
Free vs Pro
| Free | Pro | |
|---|---|---|
| Crop, trim, rotate, merge, speed, compress, GIF | Yes | Yes |
| Export resolution | Up to 1080p | Up to 4K |
| App watermark | None | None |
| Ads | Yes, frequency capped | No |
| Blur exports | 1 per day | Unlimited |
| Batch crop and resize | No | Yes |
| Custom file-size limit | No | Yes |
| Tiled or moving watermark | No | Yes |
Pro is a one-time lifetime purchase or a subscription. A rewarded ad can unlock some limits for a day. A portrait 1080 x 1920 export is within the free 1080p limit.
Limits
Cropzen is Android only. Cropping is manual: there is no AI subject tracking, and it is not a timeline editor with captions or effects.
Check the size before you shoot
Our free video size reference lists the exact pixel dimensions and interface safe zones for Instagram Reels, TikTok, YouTube Shorts and seven more surfaces, with a calculator that turns your source footage into an exact crop box. The aspect ratio calculator works out the ratio of any size, the missing side and the crop or padding for a new ratio.
For a worked example, read how to crop a horizontal video to vertical on Android.