Local WebP optimizer for WordPress. Free converts images to WebP; Pro adds AVIF and site-wide image tools.
Alternatives to Krystian Gacek Image Format Converter
Plugins below are selected for functional relevance and current directory signals. Active-install counts do not affect this ranking.
Relevant replacements
WordPress plugins with similar use cases
Compatibility and update metadata provide context, not a quality guarantee. Review each plugin’s details for your site.
WordPress image optimizer: compress JPEG/PNG, convert to WebP/AVIF, resize large uploads and serve responsive images with couic.
WebP Optimizerv1.0.0
Convert JPEG and PNG media library images to WebP through the built-in optimization service.
Free WebP and AVIF converter. Compress and optimize images on your own server and serve the best format. No API key, no account, no limits.
MediaHue Webp Converterv1.0.3
Simple MediaHue Webp Converter for WordPress. Convert JPG/PNG on upload, serve WebP on frontend, and bulk convert existing media easily.
Check plugin compatibility and repository health, track updates, roll back WordPress.org plugins, and download installed versions as ZIP files.
Convert JPEG, PNG & GIF to WebP and bulk-optimize your Media Library entirely on your own server. No external services. No data sent. No quotas.
Free WebP & AVIF image optimizer for your Media Library. No account, no API key, no per-image credits. Faster Core Web Vitals.
Ibracodes AVIF Converterv1.3.1
Convert images to AVIF and update the image URLs already saved inside Elementor and other page builders, so old pages get smaller too.
RW WebP Converter Litev1.2.0
A lightweight WordPress plugin that converts JPG and PNG images to WebP format in bulk and automatically converts newly uploaded images.