Aspect Ratio Resizer - Free Online Tool
Aspect Ratio Resizer
Crop to a Standard Aspect Ratio in Your Browser
Drag & drop an image, or click here
Understanding Aspect Ratio Resizing
Match Platform Requirements
Social platforms, ad networks, and video players often require a specific aspect ratio like 16:9 or 1:1.
Smart Center Crop
Rather than distorting the image, this tool crops evenly from the center to hit the target ratio exactly.
Common Presets
Choose from standard ratios used across social media, photography, and widescreen video.
Local Processing
Resizing happens entirely in your browser using the Canvas API — your image is never uploaded.
Cropping vs. Letterboxing
This tool crops content from the edges to reach the target ratio, which preserves full resolution but discards some of the frame. The alternative — letterboxing — keeps the entire original image but adds padding bars, which this tool does not do. If you need to keep every pixel, use the Image Resizer without a fixed ratio instead.
Key Takeaways
- Standard Presets: Pick from common ratios like 16:9, 1:1, 4:3, and vertical 9:16.
- Center Crop: The tool crops evenly from the middle rather than distorting the image.
- Client-Side Only: All resizing happens locally in your browser — no data is ever sent to a server.