Platforms6 min read·Updated September 5, 2026

HubSpot CMS: WebP Images for Landing Pages and Blogs

HubSpot landing pages are often paid-traffic destinations. A 1.5 MB hero wastes ad spend. Convert heroes and module images to WebP at 1600–1920 px and you typically save more time than any HubSpot 'performance' toggle.

Files vs modules

Images live in the file manager and are referenced by modules. Replacing the file with a same-name WebP (or updating the module) is enough. You do not need a HubSpot marketplace optimiser.

Why it matters

Paid landing pages have a direct cost per extra second.
Blog listing templates repeat feature images.
Email modules sometimes reuse the same oversized file.

How to do it

Export the campaign image folder from brand or file manager.
Convert: heroes 1920 px / 75–80%, cards 800 px / 80%.
Replace files and republish the landing page. Re-test Lighthouse.

Settings that work

Keep one master brand PNG offline. Ship WebP only in HubSpot.

Put it into practice

Convert your images to WebP right now, free and privately in your browser.

Open the converter

Frequently asked questions

Yes in the file manager for sites and landing pages. Some email clients still prefer JPEG — see our email guide.

Only if the CTA is an image. Convert those too; keep text CTAs as HTML.

Keep reading

Performance6 min read

Google Ads landing pages

Slow landing pages waste spend. Convert Ads destination images to WebP so LCP and post-click experience improve.

Workflow6 min read

WebP in email

Many email clients still prefer JPEG/PNG. When WebP works, when it fails, and how to convert campaign images anyway for the web versions.