Why resize an image
- Faster page loads — smaller images mean a faster, lighter website
- Meeting upload limits on forms, marketplaces, or email attachments
- Fitting exact dimensions required by social media profiles and posts
- Saving storage space without needing separate software
Choosing the right format
PNG is lossless and supports transparency, best for logos, icons, and screenshots with text. JPEG compresses photos well at a much smaller file size, ideal for photographs where a small quality trade-off isn't noticeable. WebP is a modern format that typically produces smaller files than both at similar quality, and is supported by all current browsers.
Frequently asked questions
Does resizing reduce image quality?
Shrinking an image rarely causes visible quality loss. Enlarging an image beyond its original dimensions can make it look soft or blurry, since no new detail is being added.
Are my images uploaded anywhere?
No — the resizing happens entirely in your browser using the canvas element. Your image is never sent to a server.