(01) — TOOLS
Is your image too heavy?
Drop up to 10 images. For each: format, dimensions, weight, weight per megapixel and a verdict based on two stated benchmarks. The WebP size is measured, not guessed. Nothing leaves the tab.
Oversized images slow the whole site down. I check the speed and SEO of yours for free (the page is in French).
Request the free auditAt a glance
- Free image weight checker, in the browser, no upload.
- Up to 10 images of 20 MB: format, dimensions, weight, weight per megapixel.
- Stated benchmarks: lighten above 200 KB or wider than 1,920 px. These are not Google rules.
- Size measured as WebP at 80% quality, long edge ≤ 1,920 px, with the browser’s encoder.
- Nothing is sent to a server.
(02) — METHOD
Two benchmarks, one measurement.
01 — Benchmarks
Above 200 KB for a content image, or wider than 1,920 px, the image is flagged “to lighten”. These are practical benchmarks, not a Google rule.
02 — Measure
The image is re-encoded as WebP at 80% quality, long edge capped at 1,920 px, with the browser’s encoder. The size shown is the one obtained.
03 — Act
To get the lighter file, use the image compression tool. A full-screen visual can exceed 200 KB without being a problem.
Further reading
(03) — FAQ
Short answers.
- Does Google penalise heavy images?
- There is no official weight threshold. Heavy images slow loading, and Google recommends good Core Web Vitals: weight matters through speed.
- Why 200 KB?
- It is a common benchmark for an article image shown 800 to 1,200 px wide, not a technical limit. Adapt it to the use: a full-screen visual can weigh more.
- Is WebP always lighter?
- No. An image that is already well compressed can grow at WebP 80%. The tool then says so instead of showing a saving.
- Are my images uploaded?
- No. They are read and re-encoded in the tab.