Image Resizer
Set a maximum width and height, preserve proportions, and export a resized local image.

Free browser tool
No Matrix computer needed
✓ No account or card
✓ Use the result right away
✓ Task-specific limits below
Workspace
Use image resizer
Runs in this browser tab
Result
How to use it
Choose an image and enter the maximum dimensions, then download the resized copy.
What to check
Upscaling cannot recover lost detail. Very large images may exceed browser memory limits.
Review the result before using it in a published page, application, or agent configuration.
Quick answers
Frequently asked questions
Does the image resizer keep proportions?
Yes by default. Set maximum width and height and leave Keep original proportions checked; uncheck that option to stretch into the chosen dimensions.
Can increasing image dimensions restore lost detail?
No. Upscaling adds pixels but cannot recreate information missing from the source. Check sharpness at the target display size.
Keep exploring
Related free tools
Need this work to keep going?
Matrix gives agents a private cloud computer for files, connected tools, and work that continues after you close your laptop. The browser tool above is free; a Matrix computer requires a paid plan.