What does resize solve?
Resizing prevents images from being loaded unnecessarily large and brings them closer to the size they are actually displayed at. Large images slow down page speed, especially on mobile, increasing bounce rates. Choosing the correct pixel size improves both user experience and SEO performance.
Loading a 3000px image for a section that only displays it at 400px forces the browser to download unnecessary data and makes the device work harder. With resize, load time drops and you may see improvements in performance metrics like LCP/INP.
How to choose the right pixel size
General rule: set the target based on the maximum visible width on the page. For most web use cases, 1200–1600px is enough. For full-width hero visuals, 1920px can make sense, but bigger values often cause unnecessary file bloat.
Practical approach: choose a target width (e.g., 1600px), keep aspect ratio lock on so height adjusts automatically. If you need a strict size for a specific area (e.g., 800×800 thumbnail), enter that directly.
Aspect ratio protection
The most important rule: protect the aspect ratio. Otherwise faces stretch, products look squashed, and the image feels amateur. With ratio lock enabled, resizing scales the image cleanly and keeps the professional look intact.
If you want to “fill” a specific box perfectly, resizing alone may not be enough. In that case, cropping or padding often gives better results. Resize is scaling; crop is framing.
Best workflow for web performance
Resize → (if needed) crop/padding → export → compress is the most efficient workflow. First you remove unnecessary pixels/data, then optimize format and file size.
Tip: After resizing, WebP + compression is one of the best web balances. For photo-based visuals, WebP often performs great. If you need transparency, choose PNG/WebP accordingly.
Common mistakes
- Resizing too small (blur and detail loss).
- Forcing resize with ratio lock off (stretch/distortion).
- Only compressing without resizing (file may still remain too big).
- Using large images where thumbnails should be used (page becomes slow).
