Documentation Index
Fetch the complete documentation index at: https://docs.bibigpt.co/llms.txt
Use this file to discover all available pages before exploring further.
Overview
The free online video cropper lets you crop videos to any aspect ratio right in your browser. Presets for 16:9 (landscape), 9:16 (vertical short-form), 1:1 (square), and 4:3 are built in, plus a free-drag custom crop area. Supports MP4, MOV, WebM, AVI, and MKV files. Everything runs locally — your footage never leaves your device.Pain Point
Landscape footage that needs to be vertical for TikTok, black bars that need trimming, or a watermark at the edge — opening a heavy editor just to crop a frame is overkill. This tool handles it in seconds: pick a ratio, adjust the crop area, download.Key Features
- Preset aspect ratios: 16:9, 9:16, 1:1, 4:3 — one click to select
- Custom crop area: drag the selection box to freely adjust the crop region
- Supports MP4, MOV, WebM, AVI, MKV, and more
- Real-time preview of the cropped result
- 100% browser-based, no server upload, no watermark
- Free, unlimited use, no sign-up required
Highlights
Pick a ratio, drag to adjust, download — done in under 30 seconds. Built-in presets cover the most common social platform aspect ratios, saving trial-and-error time. Browser-based processing is faster than waiting for traditional editors to render.Use Cases
- Landscape to vertical: Crop 16:9 footage to 9:16 for TikTok, Reels, Shorts, and Xiaohongshu
- Remove black bars: Trim black borders around the video for a tighter frame
- Square video: Crop to 1:1 for Instagram posts and WeChat Moments
- Watermark removal: Crop out edge watermarks from the frame
- Screen recording cleanup: Trim unnecessary desktop area from screen recordings, keeping only the key content
Tips
- Select your target platform’s recommended ratio before cropping
- When using custom crop, make sure the key subject stays inside the crop area
- Need to trim duration as well? Pair with BibiGPT’s video trimmer
Related: Free Video Trimmer — Try it now Upgrade to Pro: Unlock unlimited access → View Pricing