Choosing the right software
Choose the output formats and retention policy before bulk processing media. Preserve originals or a recoverable backup until visual quality has been reviewed. Check how responsive sizes, transparency and already-compressed images are handled. Some plugins use external processing credits; an open-source code license does not establish unlimited free optimization. Test representative photographs, logos and screenshots.
This shortlist covers 5 currently listed WordPress options selected from 37 catalog records with supported evidence for this use case. Each included record has an official directory URL, a recent metadata check and a recorded upstream update within two years. The selection prioritizes a matching stated purpose, then reported adoption as a tie-breaker. It is not a hands-on performance ranking or a security endorsement. The snapshot was prepared on 2026-10-02.
1. Image Optimizer. Source description: “Image Optimizer is an easy-to-use WordPress plugin that reduces image size through various compression and resizing techniques –…”. Deployment: WordPress 6.7 / PHP 7.4. Listed version 1.7.7. 1,000,000 active installations reported by WordPress.org. The source identifies the developer as Elementor. Its directory metadata records testing through WordPress 7.0.6; this is an upstream compatibility declaration, not a BuyPHP test. Compare the listed 1.7.7 release with the version available when you install. The upstream update recorded for this candidate is 2026-09-22. Open its product record for the attributed facts and official download route before adding it to your implementation plan.
2. EWWW Image Optimizer. Source description: “Comprehensive image optimization with WebP, AVIF, Lazy Load, and more. Optimize images automatically for Faster Sites and Happy…”. Deployment: WordPress 6.8 / PHP 7.4. Listed version 8.8.0. 1,000,000 active installations reported by WordPress.org. The source identifies the developer as Shane Bishop. Its directory metadata records testing through WordPress 7.1.2; this is an upstream compatibility declaration, not a BuyPHP test. Compare the listed 8.8.0 release with the version available when you install. The upstream update recorded for this candidate is 2026-09-24. Open its product record for the attributed facts and official download route before adding it to your implementation plan.
3. Smush. Source description: “Compress and optimize images, enable lazy load, serve WebP & AVIF, and speed up your site with a…”. Deployment: WordPress 6.4 / PHP 7.4. Listed version 4.3.4. 1,000,000 active installations reported by WordPress.org. The source identifies the developer as WPMU DEV - Your All-in-One WordPress Platform. Its directory metadata records testing through WordPress 7.1.2; this is an upstream compatibility declaration, not a BuyPHP test. Compare the listed 4.3.4 release with the version available when you install. The upstream update recorded for this candidate is 2026-09-29. Open its product record for the attributed facts and official download route before adding it to your implementation plan.
4. Imagify Image Optimization: Optimize Images. Source description: “Image optimization in 1‑click: compress, resize & convert to WebP/AVIF – free up to 20MB/month. Enjoy the easiest…”. Deployment: WordPress 5.3 / PHP 7.4. Listed version 2.3.4. 1,000,000 active installations reported by WordPress.org. The source identifies the developer as WP Media. Its directory metadata records testing through WordPress 7.1.2; this is an upstream compatibility declaration, not a BuyPHP test. Compare the listed 2.3.4 release with the version available when you install. The upstream update recorded for this candidate is 2026-09-07. Open its product record for the attributed facts and official download route before adding it to your implementation plan.
5. Converter for Media. Source description: “Speed up your website by using our WebP & AVIF Converter. Optimize images and serve WebP and AVIF…”. Deployment: WordPress 4.9 / PHP 7.4. Listed version 6.6.5. 500,000 active installations reported by WordPress.org. The source identifies the developer as Mateusz Gbiorczyk. Its directory metadata records testing through WordPress 7.1.2; this is an upstream compatibility declaration, not a BuyPHP test. Compare the listed 6.6.5 release with the version available when you install. The upstream update recorded for this candidate is 2026-08-18. Open its product record for the attributed facts and official download route before adding it to your implementation plan.
Compatibility comparison: 5 distinct prerequisite statements are recorded across this shortlist. WordPress 6.7 / PHP 7.4; WordPress 6.8 / PHP 7.4; WordPress 6.4 / PHP 7.4; WordPress 5.3 / PHP 7.4; WordPress 4.9 / PHP 7.4. Match these minimum requirements to your actual PHP and WordPress versions, then test the specific workflow on a copy of your site. A minimum version is not a promise that every theme, extension or newer runtime combination works. Missing integration evidence should remain a question for the developer.
Before choosing, use the linked product records to check current prerequisites and source timestamps. Ask the developer about edition-specific capabilities, update support and any external service account needed. Source metadata helps create a practical shortlist, but deployment quality still depends on your configuration, content and integrations. No price or feature should be treated as verified unless its source is recorded.