How to resize an image online
Learn the basic workflow for changing image width, height, aspect ratio, and output format.
Free browser-based image tools
Resize and compress images without uploading them
FitMyPic helps you resize JPG, PNG, and WebP images, compress file size, and export the format you need. Everything runs locally in your browser, so your images stay on your device.
Local
No upload
JPG PNG WebP
Common formats
Presets
Social sizes
Main tool
Image Resizer and Compressor
Upload an image, set the target size, choose an output format, and download the optimized result.
Drop an image here, or click to choose
Supports JPG, PNG, and WebP. Your file is processed locally.Choose an image to start.
Guides
Image sizing guides
How image compression works
Understand quality settings, file size, and when to use JPG, PNG, or WebP for smaller images.
Resize images for Instagram
Use square, portrait, and story sizes that fit common Instagram posts and vertical content.
Resize images for YouTube thumbnails
Prepare a 1280 x 720 thumbnail and keep text readable on mobile and desktop screens.
Resize image to 1024 x 1024
Create a square image for avatars, product previews, app icons, and marketplace uploads.