Free Online Image Cropping Tool
Prompts.Skin Image Cropper lets you trim and resize photos directly in your browser — no software install and no server upload. Drag to adjust the crop area with rule-of-thirds guides, lock aspect ratios (1:1, 4:3, 16:9), or use custom dimensions. Built-in ID photo presets match Chinese standards for 1-inch, 2-inch, civil service exam (413×579px), passport, ID card, and more at 300 DPI output.
Common Use Cases
Exam & Civil Service Registration
Use the civil service preset (413×579px) or 1-inch/2-inch presets to match upload requirements for Chinese exam portals.
Social Media Avatars
Crop to 1:1 for profile pictures on WeChat, Instagram, and other platforms.
Thumbnails & Banners
Use 16:9 or 4:3 ratios for video covers, blog headers, and product thumbnails.
Print & Documents
Crop passport and ID card photos to exact millimeter-based dimensions before printing.
How to Crop Images in 3 Steps
- 1
Upload Image
Drag and drop or click to select JPG, PNG, WEBP, HEIC, and other common formats.
- 2
Choose Crop Ratio
Select free crop, fixed ratio, custom dimensions, or an ID photo preset. Drag handles to fine-tune.
- 3
Crop & Download
Click Crop Image to export the result locally. Use zoom controls for precise framing.
Image Cropping FAQ
Answers to common questions about online image cropping on Prompts.Skin.
- No. Cropping runs entirely in your browser. Your files stay on your device and are never sent to our servers.
- We support JPG, PNG, WEBP, GIF, BMP, HEIC, HEIF, AVIF, and TIFF. HEIC files are decoded locally before cropping.
- Free (unconstrained), 1:1, 4:3, 16:9, and custom width/height. The crop box shows rule-of-thirds guides for better composition.
- Each preset sets the crop aspect ratio and exports at standard pixel dimensions (300 DPI). For example, 1-inch is 295×413px and civil service is 413×579px.
- Yes. Select Custom and enter width and height values. The crop box locks to that ratio while you adjust position and size.
- Cropping itself does not add compression artifacts. Output uses high-quality Canvas export. ID presets resize to exact pixel dimensions as required by upload systems.
- No. The image cropper is completely free with no sign-up required.