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  1. Home
  2. Plugins
  3. Webp
  4. WebP WASM
WebP WASM icon

WebP WASM

Convert jpeg and png media to webp and serve webp images when the browser supports it. This has been tested on WordPress 5.4.1 with php 7.2.

By gecko43·Webp·Free
00
·10 active installs·Updated 5 years ago
DownloadVisit HomepageCompare

As of April 2026, WebP WASM is a WordPress webp plugin with 10 active installations and a 0/5 rating0. It has been downloaded 1.0K+ times in total. Requires WordPress false+ and PHP false+. Available on WordPress.org since 2020. Last updated 5 years ago — may have compatibility concerns. Top alternative: EWWW Image Optimizer.

0/5Rating
10active installs
1.0K+total downloads
6 yearssince 2020

Overview

Convert jpeg and png images to their webp equivalents by leveraging google’s libwebp and web assembly and serve webp images directly when supported in posts and pages.

Quick start

  • Sign into the backoffice as an admin user.
  • Install the plugin and activate it.

Convert a single media library image

  • Navigate to Media > Library
  • Select the list view icon
  • Locate a jpeg or png image for editing and click the media’s title link or the “edit” link under the entry.
  • Scroll down to the bottom of the edit page to the (new) WebP Conversion section
  • Click Create to create a webp version of this media library image on the server
  • Click Delete to delete a webp version if it exists for this media library image

Convert all media library images

  • Navigate to Plugins
  • Set the quality…
Read full description on WordPress.org

Screenshots

Ratings & Reviews

00 reviews
5 ★
0
4 ★
0
3 ★
0
2 ★
0
1 ★
0

Compatibility

WordPressfalse+ requiredTested up to 5.4.19
PHPfalse+ required

Top Alternatives to WebP WASM

EWWW Image Optimizer icon
EWWW Image Optimizer
4.81.0M+ installsUpdated 3 days ago
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Smush – Image Optimization, Compression, Lazy Load, WebP & CDN icon
Smush – Image Optimization…
4.81.0M+ installsUpdated 3 days ago
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Converter for Media – Optimize images | Convert WebP & AVIF icon
Converter for Media – Optimize images |…
4.9500K+ installsUpdated 2 days ago
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WebP Express icon
WebP Express
4.4300K+ installsUpdated 2 months ago
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Modern Image Formats icon
Modern Image Formats
3.3100K+ installsUpdated 2 months ago
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View all webp plugins →

Frequently Asked Questions

Changelog

First release

View full changelog on WordPress.org

Contributors

gecko43gecko43
Plugin Info
Version
1.0
Last Updated
Jun 19, 2020
WP Requires
false+
Tested Up To
5.4.19
PHP Requires
false+
Active Installs
10
Downloads
1.0K+
Added
Jun 19, 2020
Business
Free

Tags

webpimage

Developer

G
gecko43
1 plugins0.0M+ total installs
View all plugins →

Quick Compare

WebP WASM vs EWWW Image Optimizer→WebP WASM vs Smush – Image Optimization…→WebP WASM vs Converter for Media – Optimize images |…→

Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.