Bulk generation
Process the whole Media Library, selected uploads folders, or selected folders inside the active theme.
Image optimization for WordPress
Controlled WebP and AVIF generation for production WordPress sites
VeloIMG creates image derivatives without changing originals and gives administrators clear control over what was generated, what was intentionally skipped, and what visitors actually receive.
Originals stay unchanged
WebP and AVIF stay separate
PHP Safe or Apache/LiteSpeed
VeloIMG control layer
0.9.1
Originals
unchanged
WebP
separate queue
AVIF
own results
Delivery strategy
AVIF -> WebP -> original
WebP
bulk generation and delivery
AVIF
separate processing and statistics
0
changes to source JPG/PNG files
How it works
From the original file to the visitor browser
The plugin stores derivative files separately, checks the result, and uses the selected delivery strategy only when the file is ready and suitable for the site.
01
JPG / PNG
Source images remain untouched.
02
WebP
Generated separately with progress, pause, and statistics.
03
AVIF
Created as a separate process and not mixed with WebP.
04
Frontend
PHP Safe or Apache/LiteSpeed delivers the suitable format.
Features
What VeloIMG does
The plugin focuses on control: first create and verify derivative files, then enable frontend delivery when the site is ready.
Separate WebP and AVIF
Each format has its own section, progress, statistics, and reasons for skipped files.
Pause and continue
Large media libraries can be processed in iterations without losing completed progress.
Frontend diagnostics
Check one site URL and see what a real visitor receives.
Safe skips
The plugin does not save a derivative when the result is larger than the original or when transparency could be lost.
File control
Folder statistics, file lists, archive export, and safe removal of generated derivatives.
Frontend delivery
Two image delivery modes
PHP Safe
Adds picture/source markup in WordPress. It works on most hosting environments, but some themes may need CSS adjustments for picture.
<picture>
<source srcset="image.jpg.avif" type="image/avif">
<source srcset="image.jpg.webp" type="image/webp">
<img src="image.jpg" alt="">
</picture>Apache / LiteSpeed
Uses rules in uploads/.htaccess and serves AVIF/WebP through browser Accept headers when the server supports it.
Browser request
Accept header
Apache/LiteSpeed
AVIF / WebP / Original
- Does not add picture/source to the page HTML.
- Works when the server allows rules in uploads/.htaccess.
- The plugin manages only its own marker block and does not rewrite other rules.
Interface
An admin interface that shows processing state clearly
The screenshots show real working states: generation, statistics, frontend diagnostics, and reasons for skipped files.
Delivery strategy
Dashboard
Check server readiness, choose the delivery mode, and define frontend format priority.
- WebP and AVIF status
- Frontend delivery mode
- Format priority
Media Library and theme folders
WebP generation
Start processing, pause generation, and review savings, queue state, and reasons for unsuccessful files.
- Whole Media Library or folder
- Progress and pause
- Savings summary
Separate AVIF process
AVIF generation
AVIF runs as a parallel branch with its own settings, results, and skipped-file reasons.
- Separate statistics
- Unsuccessful file reasons
- Quality control
What the visitor receives
URL check
Check any site page and inspect AVIF/WebP coverage, file availability, and fallback behavior.
- Single page check
- Format coverage
- Fallback diagnostics
Result control
Folder statistics
Open uploads folders, sort files by size, and review hints for skipped-file reasons.
- Uploads folders
- Sort by file size
- Reason hints
Server checklist
Requirements
- WordPress 6.9 or newer
- PHP 7.4 or newer
- Imagick or GD with WebP support
- Imagick or GD with AVIF support for AVIF generation
- Writable uploads directory
- WP-Cron or server cron for reliable background processing
Questions
FAQ
Does VeloIMG change original images?
No. Source JPG and PNG files stay in place. The plugin creates WebP/AVIF derivatives in a separate storage area inside uploads.
Why can some files be marked as unsuccessful?
The plugin intentionally does not save a result when the derivative is larger than the original, the file cannot be read, or AVIF conversion would lose PNG transparency.
Can generation be paused and continued later?
Yes. Bulk processing can be paused and continued without re-processing files that were already completed.
How is PHP Safe different from Apache/LiteSpeed?
PHP Safe changes HTML markup and adds picture/source. Apache/LiteSpeed keeps HTML unchanged and serves ready files through server rules.
What should I do after changing the delivery mode?
Clear the page cache and check a frontend URL through the built-in diagnostics to see the real delivery result for visitors.
Release
VeloIMG is available on WordPress.org
VeloIMG 0.9.1 is published in the official WordPress plugin directory. Install it from WordPress.org or from Plugins -> Add New in the WordPress admin.
Current version: 0.9.1
Open WordPress.org listing
Contact
Contact and feedback
For questions and feedback, use the form, email, or Telegram. If you describe a technical issue, include only details you are comfortable sharing.
Changelog
Version history
Test generation UX update
- Fixed AVIF test generation so the button becomes available after selecting a file.
- Unified detailed WebP and AVIF test results with file status, size, savings, and reason details.
- Added and corrected Russian translations for test generation messages.
First public release
- Separate WebP and AVIF sections.
- AVIF/WebP/original delivery strategies.
- PHP Safe and Apache/LiteSpeed modes.
- Server, frontend, and derivative-file diagnostics.
- Folder statistics, archive export, and safe derivative removal.