Video Cropper
About this Tool
Crop your videos to exact aspect ratios or custom dimensions using a highly responsive, interactive canvas.
Processed safely on your device
Everything happens in your browser on this device. Your files are never sent to our servers—so you can use it with peace of mind.
How to Use
Upload a video file (MP4, WebM, MKV, MOV, etc.) that you want to crop.
Adjust the crop bounding box on the preview or select a preset aspect ratio (1:1, 16:9, etc.).
Configure output format and quality settings, click 'Crop & Save Video', and download the resulting file.
Key Scenarios & Use Cases
Social Media Layout Adjustment
Quickly crop video borders or change formats to square (1:1) for Instagram or landscape (16:9) for YouTube to ensure optimal display profiles.
Removing Black Bars & Letterboxing
Easily crop off useless black letterbox margins or padding from video clips to focus entirely on the core visual action.
Safe Corporate Video Processing
Merges, cuts, or crops sensitive presentation recordings without sending high-definition business video assets over the network.
Frequently Asked Questions (FAQ)
Spatial cropping requires video re-encoding (using H.264 or WebM VP9). You can select your quality preference (High, Medium, Low) to keep visual loss imperceptible.
Browsers have limited capacity for large files, so videos larger than 1.5GB may fail mid-process. We recommend keeping files under 1.5GB for reliable results.
No. The entire process runs 100% locally in your browser. Video buffers are cleared from memory immediately upon download or when you change the file.