reSmush.it Image Optimizer vs WP-Optimize
Compare WordPress plugins and tools side by side. Pick products with “Compare” in the software directory.
| Feature | reSmush.it Image Optimizer v1.0.6 · checked 23 Oct 2026 Free · ★ 4.3/5 Visit Details | WP-Optimize v4.7.0 · checked 23 Oct 2026 Free · ★ 4.8/5 Visit Details |
|---|---|---|
| At a glance | ||
| Active installs | 100,000+ | 1M+ |
| Last updated | August 20, 2026 | September 21, 2026 |
| Editions | reSmush.it Image Optimizer | WP-Optimize · WP-Optimize Premium ($) |
| Pros | Free, with no paid edition; Optimises on upload and in bulk; Quality setting and EXIF removal option | Page, browser and minified-asset caching in the free edition; Database cleanup for revisions, spam, tables and more; Image compression and WebP conversion |
| Cons | Sends image files to an external service; API calls use plain HTTP and disable SSL host checks; Relies on a third-party service being available | Unused CSS, Google Fonts hosting and Cloudflare purge are paid; Image compression relies on the reSmush.it service; Many scheduled background jobs run on the site |
| Mentioned in our posts | 1 | 1 |
| More features | ||
| Other features | Optimise images on upload, Bulk optimise from the Media Library, Image quality setting, Keep or remove EXIF data, Scheduled optimisation through cron, Optimisation status column in the Media Library, WP-CLI quality command | Image compression through reSmush.it, WebP conversion of compressed images, Scheduled page cache preload, 404 error log with daily pruning, Gzip compression test, Spam comment review link, Unused CSS removal ($), Local hosting of Google Fonts ($) |
| Integrations | ||
| Other | reSmush.it optimisation API | reSmush.it, checkgzipcompression.com, Cloudflare ($) |
| Requires WordPress | 4.0.0 | 4.9 |
| Requires PHP | 7.4 | 7.2 |
| Tested up to | 7.1 | 7.1 |
| Phones home | No | No |
| External services | api.resmush.it | checkgzipcompression.com, api.resmush.it, plugins.svn.wordpress.org, teamupdraft.com |