Image Resizer

Resize Image
Online Free

Change image dimensions by pixels or percentage. Lock aspect ratio, choose output format. Runs entirely in your browser — no uploads.

No Upload

100% Private

Instant

Free Forever

Resize Image

Change width & height by pixels or percentage — aspect ratio lock included

Select Image

Drop image here or click to browse

JPG, PNG, WEBP, GIF, BMP

Resize Mode

Output Format

Resized with high-quality canvas interpolation. No uploads.

Resizing...

FAQ

Frequently Asked Questions

Downscaling maintains quality. Upscaling (making larger) may reduce sharpness as new pixels must be interpolated.

Yes. When locked, changing width auto-updates height proportionally.

Browser canvas supports up to 16,384x16,384 on modern devices.