Crop a Video
Crop your video to any area you need. Processed locally in your browser.
Drop your file here
Related tools
Crop a video in your browser
Filzy lets you crop a video to cut down the visible frame to a region you choose, useful for removing borders or zooming on a subject. The tool runs ffmpeg.wasm directly inside your browser tab, so your video file is decoded and re-encoded on your CPU without ever uploading to a server. The output is a video with the new aspect ratio, often used for repurposing landscape clips for vertical platforms (TikTok, Reels). Filzy supports MP4, MOV, WebM as input. The free tier processes 3 files without an account; signing up unlocks unlimited use, with no daily cap and no watermark.
Files stay on your device
Decoding, processing, and re-encoding all happen in a Web Worker via ffmpeg.wasm. The video bytes never reach a server, no temporary copy is stored anywhere.
Local CPU speed
WebAssembly delivers near-native performance on your CPU. A 5-minute clip typically processes in 1 to 3 minutes on a modern laptop, depending on the operation.
No upload, no daily cap
Skip the multi-minute upload that plagues server-based tools. The bottleneck moves to your CPU, where you have full control. No daily limit, no watermark.
How to crop a video with Filzy
- 1
Drop your video
Drag the file in, or click to select. Filzy accepts MP4, MOV, WebM files. The practical size limit is your device memory; multi-gigabyte files work on most modern laptops.
- 2
Filzy crops the video locally
ffmpeg.wasm decodes the video, applies the operation, and writes the result. Progress is shown frame by frame in the browser. The output is a video with the new aspect ratio, often used for repurposing landscape clips for vertical platforms (TikTok, Reels).
- 3
Download the result
Save the file, or send it straight to another Filzy tool such as Compress, Trim, or Add watermark. Files chained between Filzy tools also stay local.