Resize Image Free Online
Change image width and height in pixels or percentage. Maintain aspect ratio automatically. Export as JPG, PNG, or WEBP.
Drop your image here
JPG · PNG · WEBP — up to 50 MB
New size
—
File size
—
More free image tools
Frequently asked questions
Does resizing reduce image quality?
Making an image smaller (downscaling) preserves quality well. Making it larger (upscaling) adds pixels by interpolation which can cause blurring. For best upscaling results, use a dedicated AI upscaler.
Is the aspect ratio maintained automatically?
Yes — when the lock is enabled, changing width automatically adjusts height to maintain the original proportions. You can unlock to set custom dimensions independently.
Is my image uploaded to a server?
No — resizing runs entirely in your browser using the Canvas API. Your image never leaves your device. It's instant and completely private.
What's the maximum size?
Input images up to 50 MB. Output can be any pixel dimension up to 10,000 × 10,000 pixels (browser memory permitting).
Which format should I choose?
JPG for photos, PNG for images with transparency or sharp edges, WEBP for the best balance of quality and file size on the web.