Resize Images Online
Exact pixel sizes with aspect-ratio protection.
Runs on your deviceJPG · PNG · WebP
At a glance
- Input:
- JPG · PNG · WebP
- Output:
- Image at your exact pixel dimensions
- Processing:
- Runs locally in your browser
- Limits:
- Up to 60 MB per file, max 1 file
- Privacy:
- Your files stay on your device — nothing is uploaded to a server
About this tool
Resize to exact pixel dimensions with live aspect-ratio math and common presets for avatars, hero banners and social frames. Resampling uses the browser's high-quality smoothing.
How to use it
- Add an image.
- Enter a width or height — the locked dimension updates automatically.
- Or pick a preset like 1920×1080 or 512×512.
- Download the resized result.
Frequently asked questions
How do I keep the aspect ratio?
Aspect lock is on by default: change either width or height and the other follows. Turn it off only when you intentionally want to stretch.
Can I enlarge images?
You can upscale up to 4×, but enlarging cannot add real detail — expect softness beyond roughly +50%.
Which formats can I output?
JPG, PNG or WebP regardless of input format.