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Recommended Optimization plugins for multilingual sites

Optimization plugins improve your site's performance by handling tasks like database cleanup, image compression, asset management, caching, and static site generation — helping pages load faster and reducing server load. Learn about our recommended plugins for this category in the table below and compare their features — some of which may only be available in paid or premium versions. 

WP-Optimize - Clean, Compress, CacheShortPixel Image Optimizer
WP-Optimize - Clean, Compress, CacheShortPixel Image Optimizer
About

WP-Optimize cleans your database, compresses large images, and caches your site. This optimizes your site and makes your site more efficient. A premium version includes multisite support, lazy loading, advanced optimization options, and more.

ShortPixel Image Optimizer is a lightweight plugin that can compress all of your site’s images and PDF documents with one click and automatically resizes and rescales images as you add them.

Pricing model
Plugin price$0-199$0-99
Date testedJanuary 14, 2026June 20, 2024
More about WP-Optimize - Clean, Compress, CacheMore about ShortPixel Image Optimizer

We only recommend plugins that show an ongoing commitment to WPML compatibility. The authors of the plugins featured in the table above work closely with the WPML team on a regular basis to ensure you can build a reliable, multilingual site.

All WPML-compatible Optimization plugins

Plugin name

Plugin house

Last tested date

Compatibility Status

Accelerated Mobile Pages

June 20, 2024

WP-Optimize – Clean, Compress, Cache

January 14, 2026

ShortPixel Image Optimizer

June 20, 2024

Asset CleanUp: Page Speed Booster

January 9, 2026

NitroPack

February 11, 2025

Autoptimize

February 20, 2026

Permalink Manager Lite

December 8, 2025

Simply Static

February 29, 2024

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