Free Online Image Cropper – Crop Images to Any Size or Aspect Ratio
By RapidTool Team · Last updated: September 2026
Crop any image to a custom size or popular aspect ratio presets directly in your browser. Choose from 1:1 square for Instagram posts, 16:9 for YouTube thumbnails, 4:3 for traditional photos, or 9:16 for Instagram Stories and TikTok. Draw a completely freeform crop area and download instantly as PNG.
Frequently Asked Questions
What aspect ratio should I use for Instagram?
Use 1:1 (square) for Instagram feed posts — 1080×1080 pixels is ideal. For Instagram Stories and Reels use 9:16 — 1080×1920 pixels. For Instagram landscape posts use 1.91:1 — 1080×566 pixels.
What aspect ratio is best for YouTube thumbnails?
YouTube thumbnails should be 16:9 aspect ratio at 1280×720 pixels minimum, 1920×1080 pixels recommended. Select the 16:9 preset in this tool, then draw your crop area to match this ratio.
Can I crop to an exact pixel size?
Yes. After drawing your crop area, manually enter exact pixel values in the X, Y, Width, and Height fields below the canvas for a precise crop down to the pixel.
Why is my crop downloading as PNG?
The tool outputs PNG by default to preserve full quality. If you need a JPG output, use the Image Format Converter tool after cropping to convert the PNG to JPG.
How do I crop a circle for a profile picture?
This tool crops to rectangular shapes. First crop to a 1:1 square, then apply a circular mask in a design tool like Canva, or use CSS border-radius: 50% in your code. Most social platforms automatically display square images as circles.