Image Resizer

Resize and convert images locally — nothing is uploaded.

Drop a PNG, JPEG or WebP here, or click to browse

About this tool

Drop in a PNG, JPEG or WebP and resize it to exact maximum dimensions with the aspect ratio preserved, then export in any of the three formats with quality control. Original and output dimensions plus file sizes are shown so you know exactly what you get. Processing happens entirely on your device using the canvas API — the file is never uploaded anywhere.

Shrink screenshots for docs, tickets and email
Convert photos to WebP for faster web pages
Make avatar-sized crops without uploading photos
Compress images before attaching to issues