Upload an image to change ratio
Supports JPG, PNG, WEBP, and GIF
Paste (Ctrl/⌘+V) or drop an image — or import from a URL
Change a picture's aspect ratio to fit any platform — 16:9 for video, 1:1 for Instagram, 9:16 for stories and Reels. Image Machine fits your image to the target ratio with a chosen background or crop, so it slots perfectly into feeds and players without awkward bars or stretching. Everything runs in your browser.
How It Works
Choose a tool
Pick from 120+ tools to resize, convert, compress, or enhance your image.
Upload & edit
Drag and drop your image and adjust the settings. It stays on your device.
Download
Save your result instantly — no watermark, no sign-up required.
Why Image Machine?
Your files never leave your device
All processing runs locally in your browser. Your images are never uploaded to a server.
Completely free
Every tool is free, with no limits, no watermarks, and no hidden costs.
Lightning fast
No upload waiting — your images are processed instantly on your own device.
Professional quality
Pixel-perfect output with full control over format, size, and quality.
Frequently Asked Questions
How do I change a photo's aspect ratio to 16:9?
Pick the 16:9 preset and choose whether to crop the photo or pad it with a background colour to reach the ratio. Download the result — it will fill a widescreen frame or slide with no black bars.
What aspect ratio is best for Instagram posts?
Square 1:1 is the classic feed ratio, while 4:5 portrait takes up more vertical space and tends to get more attention. Stories and Reels use 9:16. Select the preset that matches where you'll post.
How do I make an image square without cropping out important parts?
Choose the 1:1 ratio and the pad option instead of crop. The tool adds an even background around your image to make it square, keeping the whole photo visible — perfect for product shots on a white background.
What is the difference between changing aspect ratio and resizing?
Resizing changes pixel dimensions but keeps the same shape; changing aspect ratio changes the shape of the frame (for example from 4:3 to 16:9). Use this tool when a platform needs a specific frame shape.
Can I set a custom aspect ratio?
Yes. Beyond the presets you can enter your own width-to-height ratio for billboards, headers, or unusual print sizes, and the image is fitted to it instantly.