WebP Conversion

73 Quality Score

Active Installs

16/30

With only 3,000 active installs and 4 total ratings, the plugin has a small user base, though the score gets a boost because install counts relative to its niche are reasonable.

Update Freshness

23/25

Last updated on February 4, 2026 and tested against WordPress 6.9.4, the plugin is clearly being actively maintained and kept current with the latest core release.

User Rating

13/15

An 80/100 rating from only 4 reviewers is a thin data sample, but the score itself is solid and suggests users who have tried it tend to be happy.

Support Health

8/15

Zero support threads and zero resolutions means there is no public track record of how the developer responds when users run into trouble, which is a yellow flag for anyone relying on the plugin in production.

WP Compatibility

15/15

Tested up to WordPress 6.9.4 and requiring PHP 8.1, the plugin meets modern compatibility standards and should work cleanly on any current stack.

Scores higher than 32% of indexed plugins

About

Convert your .png and .jpeg images to WebP format for FREE – with absolutely NO limits or hidden restrictions.

Active Installs 3k+

Rating ★★★★ 4.3/5

Last Updated 2026-02-04 6:31pm GMT

Requires WordPress 6.4+

Tested Up To 6.9.7

Requires PHP 8.1+

Security History

1 known vulnerability, all patched

1 Medium

Most recent: January 26, 2026

View details ▸

What It Does

WebP Conversion takes existing PNG and JPEG files in your WordPress media library and generates WebP versions of them, which are typically a fraction of the original file size. It serves the smaller WebP file to visitors whose browsers support the format while keeping the original image as a fallback. The plugin also handles ICO and SVG formats based on its tagged capabilities, giving it broader image-format utility than the name suggests.

Who It's For

This plugin is a sensible pick for site owners running on PHP 8.1 and WordPress 6.4 or newer who want a no-cost way to shrink page weight without paying for a SaaS image CDN. It works well for image-heavy sites such as photography portfolios, e-commerce product catalogues, real estate listings, and content blogs where image load time directly affects bounce rate and Core Web Vitals.

Who Should Skip It

If your host already provides server-level image optimization (such as LiteSpeed, SiteGround, or Cloudflare's Polish feature) or you already use a full-featured optimizer like EWWW or ShortPixel, this plugin is redundant. Sites stuck on PHP 7.x will also need to upgrade their server environment before it will even activate.

The Bottom Line

WebP Conversion delivers exactly what it promises: free, unlimited PNG and JPEG to WebP conversion on a modern PHP and WordPress stack, and the maintenance signals are genuinely strong. The main risks are the tiny install count, the lack of any public support history, and the fact that established alternatives like EWWW Image Optimizer offer more features and a proven track record. It is worth trying on a staging site first, and worth keeping if it works, but not a safe blind install for high-stakes production environments.

Related Plugins

Matomo Analytics 91/100

Pick Matomo when you need privacy-respecting analytics rather than image conversion, and only consider it if you actually need both tools on the same site.

Popup Maker 90/100

Choose Popup Maker if your priority is lead capture and conversion optimization through popups, which is a completely different problem than image optimization.

Safe SVG 89/100

Safe SVG is the better choice if SVG support is your primary need, since it focuses specifically on sanitizing and enabling SVG uploads in WordPress.

SVG Support 89/100

SVG Support is a strong alternative when SVG rendering is the main goal, offering broader theme and block editor integration than this plugin.

EWWW Image Optimizer 89/100

EWWW is the better choice for most production sites, since it bundles WebP conversion with bulk optimization, CDN delivery, and a much larger install base of one million.