Compress images for the web without making them look bad
You already picked dimensions, or the CMS did. Now the file is still 3 MB. Re-encode as WebP around quality 0.8. That is the boring, effective setting most marketing sites need.
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Drop images anywhere on this page
JPG, PNG, WebP, GIF, SVG, or HEIC. Your photos stay on this device.
When to use this
This page is about bytes vs smear. Convert-for-web is the same engine with a max width already filled in. Use that when the photo is still camera-sized. Use this when size-on-disk is the remaining problem.
Stay in the 0.7–0.85 band. Below that, skin and sky posterize for little gain. Logos should stay PNG.
How to do it
- Drop the images already close to display size.
- Keep WebP and quality 0.8. Nudge up if you see banding in gradients.
- Optional: set a max width if a few files are still huge.
- Replace assets on the site. Compare on a real phone, not only on a 5K monitor.
Tips
- Hero images tolerate 0.75 more than product close-ups.
- Don’t compress a file you already ran through three other “optimizers.” Start from the original.
- Check Lighthouse after deploy; this tool does not talk to your host.
Related
FAQ
- Is 0.8 “high quality”?
- For web photos, yes. It is not archival. Keep the camera original elsewhere.
- Should logos use this?
- Usually no. PNG or SVG. WebP is fine for photographic logos.
- Do you store the compressed copy?
- No. It lives in this tab until you download it.