Boost site speed by automatically converting uploads to WebP. Features smart memory protection, detailed logging, and zero API dependencies.
As of April 2026, ImOptimizer is a WordPress webp plugin with 0 active installations and a 0/5 rating0. It has been downloaded 123 times in total. Requires WordPress 5.2+ and PHP 7.0+. Available on WordPress.org since 2026. Actively maintained — updated within the last month. Top alternative: EWWW Image Optimizer.
ImOptimizer – Optimize Images is a safe, lightweight way to serve next-gen images on WordPress by converting uploads to WebP.
Most optimization plugins either rely on external APIs or risk server crashes by processing images without checking memory limits. ImOptimizer runs fully on your server using the native PHP GD library and includes a Smart Memory Guard that estimates RAM usage before converting—helping prevent memory exhaustion.
| WordPress | 5.2+ requiredTested up to 6.9.4 |
| PHP | 7.0+ required |
Plugin data sourced from WordPress.org. Analysis and metrics by PluginSift.