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StashPress : WebP Image Conversion

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StashPress : WebP Image Conversion

by Darshan Chauhan

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Description
  • One-click bulk scan and convert of your entire Media Library, in safe small batches so it works even on shared hosting.
  • Converts the full-size image plus every registered thumbnail size (thumbnail, medium, large, etc.).
  • Auto-converts every new image the moment it’s uploaded.
  • Adjustable quality slider (default 82 — a strong quality/size balance).
  • Originals are never deleted; .webp files are created alongside them.
  • On the frontend, visitors whose browser supports WebP are automatically served the .webp version; everyone else still gets the original — no broken images, ever.
  • Works with GD or Imagick, whichever your server has.
  1. Upload the stashpress-webp-image-conversion folder to /wp-content/plugins/.
  2. Activate the plugin from the Plugins screen.
  3. Go to Media > StashPress WebP to run your first scan and adjust settings.
Will this delete or replace my original images?

No. Originals are always kept. The plugin only adds .webp files next to them and serves the .webp version to supporting browsers.

What if my server doesn’t support WebP?

The plugin will show a notice on the settings page telling you GD/Imagick WebP support isn’t available. Most modern hosts support this by default.

Does it handle image sizes generated by page builders (Elementor etc.)?

Yes — it converts every size registered in WordPress’s attachment metadata, which covers sizes added by themes and builders like Elementor.

1.0.3

  • Rebranded to StashPress : WebP Image Conversion.
  • Removed all trialware/limit caps to offer 100% free unlimited WebP conversion.
  • Refactored output buffering and asset structure to comply fully with WordPress.org guidelines.

1.0.0

  • Initial release: bulk convert, auto-convert on upload, frontend WebP serving, adjustable quality, stats dashboard.
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