Use cases & aspect ratios
Social covers (16:9, 9:16), profile photos (1:1), product shots (4:3), and document excerpts. Cropping locally keeps private photos, client previews, and screenshots off third-party servers.
Crop Image Online – Free, Fast & Private
Free online crop image tool. Crop by pixels, aspect ratio, or multiple areas. PNG, JPG, WebP. No signup, runs in your browser.
Your images stay private No signup required Always free. No limits.
Free Online Image Cropper — Pixel-Perfect
NanoImage is a free online crop image tool that runs entirely in your browser. Trim to exact pixels, lock aspect ratios, or export several regions from one photo — no Canva account, no Photoshop, and no upload to our servers.
Bulk & multi-area cropping
Single-area mode for one perfect frame, or multiple regions on the same image. Drag handles, hold Shift to lock ratio, or type Crop X/Y/width/height. Download one file or all regions as a ZIP for marketing-size packs.
Free vs Canva & Photoshop
No account, no ads, no export watermark. A lightweight alternative to crop image in Canva or Adobe Express — select a region and export in the browser without installing software.
PNG, JPG & WebP output
PNG for lossless crops and flat graphics; JPG or WebP for photos. Cropping often reduces file size; pick the format that matches how you will publish the image.
How to Crop an Image Online
- Upload your JPG, PNG, WebP, or GIF file using the upload zone or drag and drop.
- Drag the crop handles on the preview, choose an aspect ratio preset, or enter exact pixel dimensions.
- Select output format and quality, then download the cropped image or all regions as a ZIP.
Frequently Asked Questions
Can I crop by aspect ratio?
Yes. Choose Free mode or presets such as 1:1 (square), 4:3, 16:9, and 9:16. Hold Shift while dragging to keep the ratio locked.
How do I crop an image to a specific size in pixels?
After uploading, use the Crop X, Crop Y, Width, and Height fields to enter exact pixel values, or drag the selection box and read the numbers update in real time.
Can I crop multiple areas at once (bulk crop)?
Yes. Switch to Multiple Areas, add several regions on one image, then download all crops together as a ZIP — ideal when you need several sizes from a single photo.
Does cropping change my original file?
No. Your source file stays untouched. The tool exports a new cropped image (or ZIP) for download only.
Does cropping an image reduce file size?
Often yes, because fewer pixels are saved. Final size also depends on output format — PNG is larger, while JPG or WebP at moderate quality is usually smaller.
What is the best aspect ratio for social media?
1:1 works for profile photos and Instagram posts; 16:9 for YouTube thumbnails and horizontal banners; 9:16 for Stories, Reels, and TikTok; 4:3 is common for general photos and slides.
How do I crop a PNG image without losing quality?
Select PNG as the output format and keep quality at 100%. Cropping does not re-compress PNG the way JPG does, so edges and flat colors stay sharp.
Do I need an account like Canva or Photoshop?
No. NanoImage runs in your browser with no signup. Your image is processed locally and is not uploaded to our servers.