Crop PNG Images Online for Free
Crop your PNG images while keeping transparency intact. Use preset aspect ratios or freeform crop with the interactive editor. All processing happens in your browser.
How to Crop a PNG Image
Cropping a PNG with ImageSizr.com takes just a few steps:
- Upload your PNG — drag and drop, click browse, paste from clipboard (Ctrl/Cmd+V), import from a URL, or connect Google Drive, Dropbox, or OneDrive.
- Select your crop area — drag to define the region you want to keep. Choose a preset aspect ratio or switch to freeform mode.
- Confirm and adjust — fine-tune the selection, rotate, or flip as needed.
- Download — click Download to save the cropped PNG with transparency intact.
PNG Transparency Preservation
The PNG alpha channel is fully preserved during cropping. Transparent backgrounds, semi-transparent effects, and soft edges all remain intact in the output.
Use the background toggle in the editor to switch between light and dark checkerboard previews. This makes it easy to verify that transparent areas look correct before downloading.
Export as PNG to keep transparency, or choose WebP for smaller files with transparency support. If you select JPEG, transparent areas will be filled with a background colour (white by default, or your chosen colour) because JPEG does not support transparency.
Learn more about handling transparency in our guide on how to preserve transparency when exporting images.
Crop Presets and Freeform Mode
The interactive crop editor powered by CropperJS gives you precise control over framing:
- 1:1 (square) — profile pictures, Instagram posts, app icons.
- 4:3 — presentations, standard photo prints.
- 16:9 — YouTube thumbnails, website banners, widescreen displays.
- 3:2 — DSLR photo proportions, classic prints.
- 2:3 — portrait-oriented social media posts.
- Freeform — drag any custom crop region without ratio constraints.
Open the full-screen modal for precise framing on any screen size. Looking for social media sizing tips? Read our guide on cropping images for social media aspect ratios.
Related Tools for PNG Workflow
- Compress your PNG — reduce PNG file size after cropping without changing dimensions.
- Resize your PNG image — set exact pixel dimensions after cropping to the right frame.
- Crop images in any format — the general-purpose crop tool for all file types.
- Crop JPG images — crop JPEG photos with quality control.
- Crop WebP images — crop WebP files with transparency support.
- Rotate tool — fine-tune angle with a precision slider and grid overlay.
- Flip tool — mirror images horizontally or vertically.
Browse our image editing guides for more tips on working with PNG files.
Frequently Asked Questions
How to crop a PNG image?
1. Upload your PNG file using drag-and-drop, browse, clipboard paste, URL, or cloud storage. 2. Select the crop area with the interactive editor. 3. Confirm your selection. 4. Click Download to save the cropped PNG.
Does cropping a PNG remove transparency?
No. ImageSizr preserves the PNG alpha channel during cropping. If you export as PNG or WebP, transparent areas remain transparent. Exporting as JPEG replaces transparency with a background colour.
Can I crop to a specific aspect ratio?
Yes. Choose from preset ratios (1:1, 4:3, 16:9, 3:2, 2:3) or use Free mode for unrestricted cropping.
Can I also rotate or flip while cropping?
Yes. The crop editor includes rotate (90-degree increments) and flip (horizontal/vertical) controls that are applied together with the crop.
Is ImageSizr free to use?
Yes. ImageSizr is completely free with no account or sign-up required.
Are my images uploaded to a server?
No. All processing happens directly in your browser. Your images never leave your device, so your data stays private.
What is the maximum file size?
Each file can be up to 10 MB.