Image Tools
Image Resizer
Big photo, tiny upload slot? Resize any image to the exact dimensions you need in seconds - your file never leaves your browser.
How to resize an image
- 1.Upload your image: Drag and drop an image file or click to browse your device.
- 2.Set new dimensions: Enter width and height in pixels, or switch to percent mode and scale by a percentage.
- 3.Lock the aspect ratio: Keep the lock toggle on to change one dimension without stretching the other.
- 4.Choose a preset (optional): Pick a ready-made size for Instagram posts, stories, YouTube thumbnails, X headers or Facebook posts.
- 5.Download: Choose PNG, JPEG or WebP and download your resized image instantly.
Image Resizer Features
Pixel or percent mode
Type exact width and height, or scale the whole image by a percentage.
Aspect-ratio lock
One-click lock keeps proportions correct so nothing gets stretched.
Social media presets
Instagram post & story, YouTube thumbnail, X header, Facebook post sizes built in.
3 output formats
Export as PNG for crispness, JPEG for photos, or WebP for the smallest files.
Live preview
See the resized result before you download - no guesswork.
100% private
Resizing happens on a canvas in your browser. No uploads, no waiting.
Image Resizer Frequently asked questions
Will resizing make my image blurry?
Scaling down is almost always clean. Scaling up beyond the original size can soften details because the browser has to invent pixels - try to stay at or below 100% when sharpness matters.
How do I resize without stretching my photo?
Keep the aspect-ratio lock on (it's on by default). Then changing the width automatically recalculates the height, so the image keeps its original proportions.
What's the right size for an Instagram post?
1080 x 1080 px is the standard square post size. For stories and reels use 1080 x 1920 px. Both are included as one-click presets in the tool.
Which format should I download - PNG, JPEG or WebP?
Use JPEG for photos (smallest file), PNG for graphics with sharp edges or transparency, and WebP when you want the best quality-to-size ratio for the web.
Is the image resizer really free?
Yes - no sign-up, no watermarks, no limits. Everything runs in your browser.