Resize Image
Resize images to any dimensions. Maintain aspect ratio or stretch to fit.
Resize an image to an exact pixel size or scale it by percentage, right in your browser. Set a target width and height like 1920×1080 or 1080×1080, or shrink to 50% to halve the file. Keep the aspect ratio locked so the picture stays proportional, or unlock it to force exact dimensions when a form demands them.
Everything runs on your own device using the canvas in your browser. Your photo is never uploaded, so there is no waiting on a connection and nothing to delete from a server afterward. The result downloads straight back to your computer or phone.
Drop image to resize
Original dimensions auto-detected
🔒 100% Browser-Based
Your image is processed entirely in your browser. Nothing is uploaded. Verify in DevTools → Network tab — zero outbound traffic with file content.
About Resize Image
Resize images to exact pixel dimensions or scale by percentage, with the option to keep or ignore the aspect ratio. Great for sizing photos for Instagram, profile pictures, or web layouts. Processed in your browser, nothing uploaded.
How to use the Resize Image
- 1
Open your image
Drag a JPG, PNG, or WebP onto the page or tap to browse. The original width and height appear so you know your starting point.
- 2
Choose pixels or percent
Type exact dimensions like 800×600, or switch to percentage and enter a value such as 25% to scale down proportionally.
- 3
Lock or unlock ratio
Leave the aspect-ratio link on to avoid stretching. Turn it off only when a spec requires precise non-proportional dimensions.
- 4
Download the result
Preview the new size, then save the resized image. The file is generated locally and downloads instantly.
Pixels vs percentage: which to use
Use exact pixels when a platform names a size: a 1920×1080 desktop wallpaper, an 800px-wide blog image, or a 600×600 product photo for a marketplace. Type those numbers directly and you hit the spec every time.
Use percentage when you just need something smaller and do not care about an exact figure. Dropping a 4000px phone photo to 40% gives a 1600px image that emails and loads faster while staying sharp. Percentage also preserves the aspect ratio automatically, so you cannot accidentally distort the picture.
Why upscaling looks soft
Shrinking an image discards pixels and almost always looks clean. Enlarging is the opposite problem: a 500px image scaled to 1500px has no extra detail to show, so the browser invents pixels by blending neighbors. The result looks blurry or smeared, especially on text and sharp edges.
For best quality, always start from the largest original you have and size down. If you must upscale, keep it modest (around 1.5× to 2×) and expect some softness. There is no way for any resizer to recover detail that was never captured.
Quick tips
- ✓Always resize from the original, full-size file. Resizing an already-shrunk copy compounds quality loss.
- ✓For social posts, 1080px on the short side is the practical sweet spot most feeds display at.
- ✓Save photographs as JPG and graphics, logos, or screenshots with text as PNG to keep edges crisp.
- ✓Note your starting dimensions before you change anything so you can undo by re-entering them.
- ✓When a site rejects an upload for being too large in pixels, shrink width first; height usually follows on its own.
Frequently asked questions
Will resizing distort my image?
Not if you keep "maintain aspect ratio" on. Turn it off only when you intentionally want to stretch to exact dimensions.
Can I make an image larger?
You can upscale, but enlarging beyond the original resolution softens detail — there are no extra pixels to invent.
What formats are supported?
JPG, PNG, WebP, BMP, and GIF (first frame).
Will resizing reduce my file size too?
Yes. Fewer pixels means a smaller file, so a 4MB photo scaled to half its dimensions typically lands well under 1MB. The exact size also depends on the format and the image content.
Does resizing change the image format?
It keeps your image type by default, so a PNG stays a PNG. If you need a different format for a smaller file, convert separately; resizing alone does not swap JPG for PNG.
Why does my image look stretched after resizing?
The aspect ratio was unlocked, so width and height changed independently. Re-enable the ratio lock, or enter dimensions that keep the same proportion as the original (for example, both halved).
Related guides
How to Resize an Image for Instagram (Posts, Stories, Reels)
Resize images to Instagram's exact dimensions: 1080x1080 posts, 1080x1350 portraits, 1080x1920 stories. Free, in your browser.
How to Resize a Photo for a Resume or LinkedIn
Resize headshots to standard dimensions for resumes, LinkedIn (400x400), and ATS applications. Free, no upload.