TheDock Media – Image Optimizer: Compress Images, Convert to WebP & AVIF
TheDock Media is an image optimizer and WebP and AVIF converter for WordPress: it compresses images, resizes oversized photos and converts them to WebP and AVIF, so pages load faster and score better on Core Web Vitals. It runs on your own server, for free, with no account, no monthly quota and no c
TheDock Media is an image optimizer and WebP and AVIF converter for WordPress: it compresses images, resizes oversized photos and converts them to WebP and AVIF, so pages load faster and score better on Core Web Vitals.
It runs on your own server, for free, with no account, no monthly quota and no credits . Optimize every new upload and your whole existing library in bulk. The plugin also checks what your server can do, so you know which formats you get before you start.
Want to see the difference first? Try it on one of your files at media.thedock.io .
Free, on your server
- Modern formats: new uploads are saved as AVIF or WebP (when your server supports them), JPEG otherwise.
- Compression levels: Best, Balanced, Smallest, or your own number, tuned per format.
- Largest size: oversized photos are scaled down to what your site actually shows.
- Your whole library: the Library screen finds heavy, oversized and badly compressed images and optimizes them in the background, one at a time.
- Dashboard widget: what can still be optimized and how much it saves, with a one-click Optimize button.
- TIFF to web: print TIFFs become images browsers can show (when your server’s image library reads TIFF).
- Replace originals (optional): free disk space by keeping only the optimized file, and only when it is smaller.
- Safe on small servers: photos too big for your server’s memory are stored as uploaded instead of crashing the upload, and ImageMagick gets a memory budget inside containers.
Everything is done by WordPress’s own image code with your chosen settings, so file names, sizes and metadata are exactly what WordPress makes. Themes, page builders, backups and migrations keep working.
Know what your server can do
The Server screen (also in Tools → Site Health) checks this server and explains the results in plain words:
- which image library WordPress uses (ImageMagick or GD) and which formats it can read and write;
