Vacuum Image Optimizer
Vacuum Image Optimizer is a modern, lightweight image optimization toolkit for WordPress. It shrinks your image footprint by generating next-generation WebP and optional AVIF files locally, while always keeping your original files safe and untouched.
Everything happens inside a clean, friendly admin interface — no command line, no external services, and no account required.
Unlike optimizers that rewrite originals or depend on a remote API, Vacuum writes generated formats alongside the source image, can keep restorable backups, and serves WebP/AVIF on the frontend without changing stored media URLs.
What it does
- WebP generation — Create optimized WebP copies of your JPEG and PNG images using Imagick or GD.
- AVIF generation — Optionally generate AVIF, a newer format that is often even smaller than WebP, as a parallel format.
- Bulk optimization — Scan your media library and process eligible images in safe, batched background steps.
- Queue processing — A reliable queue runs work in small WordPress AJAX batches you can start, pause, and resume.
- Upload automation — Automatically optimize new JPEG and PNG uploads, either by queueing them or processing them immediately.
- Frontend delivery — Serve generated WebP/AVIF on the frontend with automatic, safe fallback to the original image — your media URLs in the database are never changed.
- Reports — See storage savings, recent activity, top savings, format distribution, and automation stats, with one-click CSV export.
- Localization — Fully translatable, shipping with 9 bundled languages plus an in-plugin interface-language selector.
- Local processing — No external API dependency; optimization runs on your WordPress server.
Safe by design
Vacuum never modifies or deletes your original images. Optimized formats are written alongside the originals, optional backups can be kept, and a one-click restore brings originals back at any time.
Features
- WebP image generation (Imagick or GD)
- AVIF image generation as a parallel format
- Bulk optimization with a start/pause/resume queue
- Automatic optimization of new uploads (queue or immediate mode)
- Non-destructive frontend delivery with original fallback
- Native browser lazy loading (no JavaScript)
- Per-image WebP/AVIF actions in the Media Library
- Generated derivatives registered as Media Library items
- Original backups and one-click restore
- Local processing with no external API dependency
- Compression profiles and adjustable quality
- GIF and SVG eligibility exclusions
- Reports dashboard with CSV export
- System status and production-readiness checks
- Interface language selector with 9 bundled translations
- Clean, accessible, mobile-responsive admin UI