Designed2Use Convert to WebP/AVIF

Designed2Use Convert to WebP/AVIF is a privacy-first image optimizer with one promise the
big-name plugins can’t make: your images never leave your server, and every conversion
can be undone.

Most popular optimizers upload your images to a third-party cloud service to do the work —
counting against monthly quotas and handing your media to someone else’s servers. This
plugin does everything locally, using WordPress’s own image editor (Imagick, falling
back to GD). No accounts, no API keys, no external requests.

Why it’s different

• 100% local & private — no cloud service, no telemetry, no phone-home. Every image is
  processed on your own site.
• Fully reversible — bulk conversion (and uploads made with “Keep original file” on)
  keep your original file on disk and record a restore manifest, so you can put any image
  (or all of them) back with one click. Uploads that replace the original can’t be undone.
• WebP or AVIF — choose the modern format you want. AVIF (newer, smaller) is offered
  automatically when your server supports it, with a safe fall back to WebP.
• See your savings — a built-in dashboard shows how much disk space you’ve saved, all
  calculated on-site.

What it does

• Converts on upload — JPG/JPEG and PNG uploads become WebP or AVIF automatically, and
  because the conversion happens before WordPress builds its sub-sizes, every thumbnail size
  is generated in the new format too.
• Converts existing media — a batch tool under Media → Convert Existing processes
  your library a few images at a time with a live progress bar (no timeouts).
• Convert & restore from the Media Library — convert or restore a single image right
  from its details (both list and grid view), or select several and use the Media-list bulk
  actions; roll back the whole library from the Tools page.
• Resizes oversized images — anything larger than your chosen longest-edge limit is
  scaled down (aspect ratio preserved); smaller images are never enlarged.
• Never breaks an upload — if anything goes wrong, or the server can’t write the format,
  the original file is kept and the upload proceeds normally.

Settings

Under Settings → Convert to WebP/AVIF:

• Enable conversion — master on/off switch for upload-time conversion.
• Output format — WebP (broad support) or AVIF (smaller, when available).
• Quality — 1–100 (default 80). Lower means smaller files.
• Max longest edge (px) — default 1600. Set 0 to convert without resizing. This replaces
  WordPress’s own 2560px “big image” scaling for converted images, so they are never resized
  twice or renamed with a “-scaled” suffix.
• Keep original file — affects new uploads only; off by default (the original is
  replaced). Turn on to keep both — and only then can an upload be restored later.
• Convert these formats — JPG/JPEG and PNG, plus WebP / AVIF (resize only, format
  kept): already-modern uploads keep their format and filename and are only resized to the
  max longest edge. With Keep original file on, the untouched upload is saved alongside
  as name-original.webp (or .avif) so it can be restored.

Converting and restoring existing images

Go to Media → Convert Existing. The page shows how many images still need converting,
how many can be restored, and your running savings total. Conversions run in safe batches.

Because bulk conversion always keeps the original file on disk, the change is never
destructive: use Restore all to originals on the Tools page, or the Restore original
row action on any converted item in the Media list (single images, or several at once via the
Media-list bulk actions), to delete the converted files and put the attachment back exactly
as it was. Uploads converted with Keep original file turned on are restorable the same
way; uploads that replaced their original cannot be undone.

Privacy

This plugin contacts no external server, collects no data, and adds no tracking. WebP
and AVIF are written by your own server’s image library. Everything happens on your site.