Description
Halka WebP Image Optimizer hooks into the WordPress upload pipeline to silently convert JPEG and PNG images to WebP during upload.
It is a minimalist, performance-first optimizer. Unlike “bloated” suites, Halka focuses on a zero-configuration approach to keep your server load light (“Halka” means light). It is designed for users who want WebP conversion without the database overhead of larger plugins. No external APIs, no credits required — everything happens locally on your server.
Features
- Convert JPEG, PNG (and optionally GIF) to WebP on upload
- Configurable quality per format
- Optional maximum dimension cap (auto-resize on upload)
- Strip EXIF/IPTC metadata to save extra bytes
- Optionally delete the original file after conversion
- Bulk converter — process existing Media Library images in small batches
- Per-image Convert to WebP button in the Media Library list view
- Server support badge so you know what your host can do
- Zero external dependencies — uses WordPress’s built-in
WP_Image_Editor
Screenshots
Settings Page & Bulk Conversion 
Media Library: Convert Files Individually 
Automatic Optimization & WebP Conversion
Installation
- Upload the
halka-webp-image-optimizerfolder to/wp-content/plugins/. - Activate the plugin through the Plugins screen.
- Go to Settings Halka Image Optimizer to configure.
FAQ
-
Does my server support WebP?
-
The Settings page shows a badge indicating whether your server’s image library
(GD or Imagick) can encode WebP. Most modern hosts support it. If yours does not,
ask your host to enable WebP support in GD or upgrade to a more recent version
of Imagick. -
Will existing images be converted?
-
Only newly uploaded images are converted automatically. Use the Bulk Convert
section on the Settings page to process existing Media Library images. You can
also convert individual images using the Convert to WebP button in the
Media Library list view. -
Is it safe to enable “Delete Original”?
-
Only enable this if you are sure you will never need the originals. There is no
undo. We recommend keeping originals (the default) unless disk space is critical.
Reviews
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Contributors & Developers
“Halka WebP Image Optimizer” is open source software. The following people have contributed to this plugin.
Contributors
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Interested in development?
Browse the code, check out the SVN repository, or subscribe to the development log by RSS.
Changelog
1.0.0
- Initial release.