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Images to WebP

by kubiq · Media

Also makes 12 other plugins · 126K+ installs across the portfolio →

Convert PNG, JPG and GIF images to WebP and speed up your web

Try it live opens a temporary test site in your browser, which can take about 20 seconds to load. Plugins that rely on outside services or a full server may not work completely there.

Health

A 88/100

no flags

Active installs

9K+

≈10K estimated

Momentum

+7%

downloads vs prior 30d

Biggest opportunity: Add “missing images”, “webp” and “img” to your wp.org tags. You rank #11, #11 and #15 for them without listing them, close enough for a declared tag to move you up. WordPress.org counts only your first five tags, so with 4 listed these are the slots worth spending.

How scoring works →
88 Health · A
Maintenance 100/100
Rating quality 82/100
Support 70/100
Security 96/100

88 health vs 62 average across 3,292 Media plugins

Install conversion

How it's measured →

6.0%

of downloads still active

At least 9K of 149.7K lifetime downloads are still running, above its category: the median Media plugin keeps 0.8%, across 2,323 plugins.

Downloads count every update, not just first installs, so older and more frequently released plugins read lower. Compare against other Media plugins, not across the directory. wp.org reports active installs as the bottom of a band, so the real rate is this or higher.

This plugin shipped 4 releases in the last 12 months, and every existing install that updated counted as another download. wp.org publishes no split between first installs and updates, so we show the raw rate rather than guess at one.

Details

Version
5.0
Last updated
2mo ago
Added
2019-11-17 · 6 yrs old
Requires WP
5.0
Tested up to
6.9.11
Requires PHP
7.0

Directory ranking optimization

How it's scored →

How well this listing is tuned to rank in WordPress.org search, on the factors an owner controls. Not popularity, optimization.

94 / 100

Excellent listing optimization

Well tuned across the board

Update recency 100/100

Updated 46 days ago

WP compatibility 100/100

Tested up to WordPress 6.9.11, the current branch or newer

Rating quality 84/100

4.4★ over 32 reviews, smoothed to 4.22★

Listing tuning 92/100

4 of 5 tags set · short description in place

Daily downloads

Since 5 Oct 2022 · 1,490 days · wp.org + Plugin Pulse archive

+7% vs prior 30d
602 Nov 2026

30-day downloads

Rolling 30-day volume · peak 7.9K · peaks are release surges

1.8K2 Nov 2026

Directory rank vs rivals

wp.org popularity rank over time · higher is better · when a rival's line climbs above yours, they've overtaken you

Images to WebP · #2202youPNG to JPG · #2145Optimize Images Resi · #2988Better image sizes · #4515

Rating trend

Star average over time · dips mark rough releases

4.42 Nov 2026

Health trend

Composite health score, snapshotted daily

882 Nov 2026

Update activity

How busy the existing users are, measured as downloads in the last 30 days for every 1,000 active sites. A spike means a new release everyone's pulling; a long, slow decline means an aging user base that updates less.

2012 Nov 2026

Release cadence

Actively maintained
from wp.org release tags

How often this plugin actually ships. A steady rhythm is the maintenance signal a single "last updated" date can't show.

4

releases in the last 12 months

8mo ago

latest release · v5.0 · 16 Mar 2026

6

tagged releases on record

Recent releases

5.0 · 16 Mar 20264.9.1 · 14 Jan 20264.9 · 13 Jan 20264.8 · 1 Dec 20254.7 · 22 Mar 20244.6 · 18 Dec 2023

What its installed base runs

via wordpress.org

Share of active installs on each version of this plugin · 59% run the current release. Green is the current release; a big slice on older versions is a user base that has stopped updating.

v5.0 59%
v4.7 22%
v4.9 5.8%
Older / other versions 13%

Estimated active installs

The public count shows “9K+”. Our estimate pins where the real number sits.

tracked estimate
9K–10K ≈10K

Crossed into this band 15 days ago and a band this size takes about a year or more to cross, so the real count is still just under 10K.

At the current install trend, crossing 10K+ in roughly 673 days.

Install history since 17 Aug 2021

9K2 Nov 2026

Recent reviews

All reviews on wp.org ↗
  1. ★★★★★ Anonymous
    4mo ago

    For Nginx, I had to make a change to the .conf file, and then everything worked perfectly. The only caveat is that the instructions state you need to make changes to the http{} section, but that section isn’t present in all configuration files. For example, in Docker, configurations are included via http {include /etc/nginx/conf.d/*.conf;}, meaning that the entire configuration file is already contained within the http section in the main configuration file, and you won’t see it as a separate section.

    Read on wp.org ↗
  2. ★★★★★ philrees
    2.1y ago

    I am highly impressed by this well thought out and elegant module. It works perfectly for me

    Read on wp.org ↗
  3. ★★★★★ Shuaib
    2.2y ago

    Working great! It was challenging for me to optimize the existing images, but it makes it simple.

    Read on wp.org ↗
  4. ★★★★★ pulsecode
    2.3y ago

    This plugin is a bit of a game changer for me!Having extensively used custom images sizes and the Crop-Thumbnails plugin for many clients to allow them much better control of their images, i ran into a big problem when it came to serving images as WebP.Images were cropped automatically upon upload (and of course converted to WebP) but when adjusting the crop position later on, the WebP converted images were never updated, effectively breaking the cropping function.But this plugin is not only fast, efficient and free (amazing work guys!) but has a completely life saving function: $images_to_webp->convert_image()Using this i was easily able to connect Crop-Thumbnails up and have it so whenever a user adjusts a crop, that image is re-converted to WebP.Thank you for such a fantastic plugin!

    Read on wp.org ↗
  5. ★★★★★ Evgeni
    2.4y ago

    Хорошая работа. Спасибо)

    Read on wp.org ↗
  6. ★★★★★ oasisclub
    2.6y ago

    Simple to use, clear instructions – very effective. Eenvoudig om te gebruik, duidelike instruksies, baie effektief.

    Read on wp.org ↗
  7. ★★★★★ igitt23
    2.8y ago

    Just came across your profile because i use your smooth scroll plugin on many customers of mine. So i saw that you have some other plugins and now im using beside the smooth scroll plugin also the CPT Plugin and this WebP Plugin.All Plugins are super simple and very easy to use. They also all work as thei should. Perfect! Thanks for your work!Im corious if you could also add avif as supported format 🙂

    Read on wp.org ↗
  8. ★★★★★ WolfgangHammersmith
    3.1y ago

    You are getting feedback about SEO issues likely because when the “delete” option is selected the plugin needs to remove the http_accept line from the .htaccess rules (also the nowebp line makes no sense if the delete option is used).Since the desktop crawler agents won’t pass the http_accept rule the search crawlers will get 404 errors trying to load deleted originals.After a few years of WebP conversion experience I’ve found the reason some images come out larger is because they were compressed far too lossy (almost always a small JPG), but there is a command line option for CWebP that will match the original file size so you can do a full conversion to WebP.

    Read on wp.org ↗

Latest updates

via wp.org changelog

Recent releases and news for this plugin

  1. — Version 5.0 now images are optimized in the background instead of during upload which was slowing down the workflow fix many small things based on the current Plugin Check results 5.0
  2. — Version 4.9.1 optimize old images convert process remove not working itw_extensions filter 4.9.1
  3. — Version 4.9 info banner about new free Images to AVIF plugin prioritize GD library readme small changes 4.9
  4. — Version 4.8 Tested on WP 6.9 4.8
  5. — Version 4.7 Tested on WP 6.5 4.7
  6. — Version 4.6 Fix for “Find and convert MISSING images” button 4.6

Security history

via Wordfence Intelligence

All 2 disclosed vulnerabilities are patched in the current version (5.0). Sites still on an older version should update.

  1. 2021-10-19 CVE-2021-24644 Improper Control of Filename for Include/Require Statement in PHP Program Affects <= 1.8 Patched in 1.9
  2. 2021-10-19 CVE-2021-24641 Cross-Site Request Forgery Affects < 1.9 Patched in 1.9

Vulnerability records provided by Wordfence Intelligence. Copyright 2012-2026 Defiant Inc. License and terms.

CVE records: Copyright 1999-2026 The MITRE Corporation. CVE terms of use.

Languages

via translate.wordpress.org

Translated into 10 languages, 2 at 90% or more

Czech 93%
Russian 93%
Dutch 87%
Chinese (China) 71%
Danish 71%
German (Formal) 71%
Swedish 71%
Romanian 46%
German 40%
French (France) 21%

AI assistants

How it's measured →

Whether ChatGPT and Claude name this plugin when asked the category question, and whether the readme gives them something to quote.

Not measured yet for this plugin’s topics. Its tracked searches are not among the measured topics. See the topics measured so far.

Readme readiness

5 of 8 pass · checked 1 Nov 2026

Can an assistant quote this readme? Eight deterministic checks over the wp.org listing, no model involved.

  • ✓ Says what it does "Convert PNG, JPG and GIF images to WebP and speed up your web"
  • ✓ Has a FAQ 10 questions in the FAQ.
  • ! FAQ asks real questions 7 of 10 FAQ entries are headings, not questions ("Plugin requirements").
  • ! Names who it is for One audience phrase ("for developers"); say who the plugin is for and what they use it for.
  • ✓ Names what it works with Mentions Multisite.
  • ✓ Headings and lists 5 headings and 1 list.
  • ✓ Enough to quote 1,834 characters of description.
  • ! Tags match the text Only 1 of 4 tags appear in the text ("media", "Optimize", "pictures" missing).

Growth timeline

Install-tier crossings we have observed, and how long each tier took to outgrow

  1. 2026-10-18 10K+ → 9K+ down after 1 days in tier
  2. 2026-10-17 9K+ → 10K+ up after 32 days in tier
  3. 2026-09-15 10K+ → 9K+ down after 20 days in tier
  4. 2026-08-26 9K+ → 10K+ up after 1 days in tier
  5. 2026-08-25 10K+ → 9K+ down after 2 days in tier
  6. 2026-08-23 9K+ → 10K+ up after 393 days in tier
  7. 2025-07-26 10K+ → 9K+ down after 367 days in tier
  8. 2024-07-24 9K+ → 10K+ up after 161 days in tier

Competes with

The plugins that solve the same job, ranked by shared tags then reach, closest match first. The letter on the right is each plugin's health grade (A best, F worst).

Embed this report card

Drop a live Pulse card for Images to WebP into a readme, a review or a deck. It updates itself.

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Preview card ↗

Images to WebP: 9K+ active installs, 4.4★ (32 reviews). Plugin Pulse (WP Mayor), as of 2026-11-02. https://plugins.wpmayor.com/plugin/images-to-webp

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