by Santosh Gautam 4 (4 reviews)

PixGrow Image Optimizer

Name: PixGrow Image Optimizer
Rating: 4.0 (4 reviews)
Author: Santosh Gautam

Free browser-based WordPress plugin to compress images and convert to WebP. No API key, zero server load, unlimited bulk image optimization.

PixGrow Image Optimizer ranks #17,202 among WordPress.org plugins with 90+ active installations, a 4/5 rating from 4 reviews, and was last updated Oct 4, 2026. Data from WordPress.org, refreshed twice daily — see methodology.

Compatible with WP 7.1.4

v1.1.0 Current Version v1.1.0

Updated 1 month ago Last Update on 04 Oct, 2026

Refreshed 1 week ago Last Refreshed on

Top 25% by installs Downloads +15.5% this week

View on WordPress.org

Rank

#17,202

— No change

Active Installs

90+

+16.9%

KW Avg Position

94.6

3.6 better

Downloads

790

+2 today

Support Resolved

— No change

Rating

80%

Review 4 out of 5

4 (4 reviews)

Next Milestone 100

Total Progress 10%

90+ 100+

4,722

Ranks to Climb

Growth Needed

8,000,000

Active Installs

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Rank Changes

Current #17,202

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Active Installs Growth

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Active Installs 0,000,000+

Growth +0.0%

Peak 0,000,000

Downloads Growth

Downloads

Growth

Peak

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Reviews & Ratings

4.0

4 reviews

Overall 80%

3 (75%)

0 (0%)

1 (25%)

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Plugin Details

Version: 1.1.0
Last Updated: Oct 04, 2026
Requires WP: 5.6+
Tested Up To: 7.1.4
PHP Version: 7.4 or higher
Author: Santosh Gautam

Support & Rating

Rating: ★ ★ ★ ★ ☆ 4
Reviews: 4
Support Threads: 0
Resolved: 0%

Keywords

compress images image compression image optimizer Page Speed webp

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Frequently Asked Questions

Common questions about PixGrow Image Optimizer

A free, browser-based WordPress plugin that compresses images and converts them to WebP using WebAssembly. It needs no API key, no external server, and no subscription — all compression happens locally, so your images never leave your hosting environment.

No. There's no API key, registration, or third-party account of any kind, and no usage quota tied to an external service.

It uses WebAssembly (Wasm) to run compression codecs locally inside your browser. Your browser fetches the original images from your WordPress server, compresses them on your computer, and uploads the optimized files back — no third-party server is involved at any point.

Yes. Because compression runs in your browser rather than on the web server, it avoids the PHP memory limits and execution timeouts that cause server-side bulk optimizers to fail or trigger host suspensions on shared plans.

Yes to both. PixGrow is fully free through the WordPress.org plugin directory, and it's distributed under the GPLv2 license with publicly auditable source code.

Install the plugin, open the dashboard, and run the bulk optimizer. PixGrow uses your browser to convert existing JPEG and PNG files into WebP without manual configuration.

It converts JPEG and PNG files to WebP, which is the specific fix Lighthouse and PageSpeed Insights recommend for that audit item.

No. Images travel from your WordPress server to your local browser for compression, then back as optimized files. No image data passes through third-party infrastructure.

MozJPEG is an open-source JPEG encoder maintained by Mozilla that produces smaller JPEG files than the standard encoder at comparable visual quality. PixGrow uses it inside its WebAssembly compression engine.

Yes. PixGrow automatically backs up the original file before replacing it, and you can restore any image — or your full Media Library — to its original state at any time.

PixGrow Image Optimizer

Next Milestone 100

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