Image Resizer Online Free
Resize images to exact dimensions with aspect ratio lock
Select an image to resize
How to Use Image Resizer Online Free
- 1Upload an image (JPEG, PNG, WebP, up to 50 MB).
- 2Enter the desired width and/or height in pixels.
- 3Toggle aspect ratio lock to maintain proportions.
- 4Choose output format and quality, then click Resize and download.
About Image Resizer Online Free
Resize images online for free — change width and height with optional aspect ratio lock. Output as JPEG, PNG, or WebP. Perfect for social media, web, email, and print. Runs in your browser, no upload needed.
Frequently Asked Questions
Can I maintain the aspect ratio?
Yes. The aspect ratio lock is on by default. When you change width, the height adjusts automatically (and vice versa).
What is the maximum image size?
You can upload images up to 50 MB. There is no pixel dimension limit, but very large images may be slow to process.
Is my image uploaded to a server?
No. Everything runs in your browser. Your images are never uploaded anywhere.
Can I resize to specific social media sizes?
Yes — enter the exact pixel dimensions. Common sizes: Instagram (1080×1080), Facebook cover (820×312), Twitter header (1500×500), YouTube thumbnail (1280×720).