Smart Image Optimizer — WPSIO
WordPress Plugin — Free + Pro — No External API

OPTIMIZE YOUR IMAGES LIKE A PRO

Compress images, convert to WebP, and boost your PageSpeed score in minutes. Everything runs on your server — no external API, no monthly limits, no privacy risks.

🔥 Get Pro Unlimited — $49.99/yr Get Free Version

✓ Free forever  ·  ✓ 7-day Pro trial  ·  ✓ No credit card required

✓ No External API
✓ Runs on Your Server
✓ WebP Conversion
✓ Backup Originals
✓ Bulk Optimization
✓ Better PageSpeed
✓ Auto Compress on Upload
✓ Privacy First
✓ No Monthly Limits
✓ No External API
✓ Runs on Your Server
✓ WebP Conversion
✓ Backup Originals
✓ Bulk Optimization
✓ Better PageSpeed
✓ Auto Compress on Upload
✓ Privacy First
✓ No Monthly Limits
Before & After — same image, smaller file
Original JPG
2.4 MB
WebP
Optimized WebP
340 KB — 86% smaller
Features

EVERYTHING YOU
NEED TO GO FAST

Built for WordPress. Runs entirely on your server. Zero external dependencies.

⚡
Smart Compression
Reduce image file sizes by up to 90% while maintaining visual quality. Lossless and lossy modes available.
🖼️
WebP Conversion
Automatically convert JPEG and PNG images to the modern WebP format — smaller files, better browser support.
📊
Better PageSpeed
Improve Google Core Web Vitals, Lighthouse scores, and SEO rankings by serving optimized images automatically.
🔁
Backup & Restore
Original images are backed up before any modification. Restore any image or your entire library with one click — zero risk.
📦
Bulk Processing
Optimize your entire existing media library in safe server-friendly batches. Pause and resume at any time. (Pro)
🚫
No External API
Everything runs on your own server using PHP's GD/Imagick library. No third-party services. No data leaves your server.
How it works

UP AND RUNNING
IN MINUTES

No coding, no API keys, no complex setup.

1
Install & Activate
Upload the plugin via Plugins → Add New. Activate. The plugin is ready instantly — no setup wizard needed.
2
Configure Settings
Choose your compression level, output format (WebP, JPEG, PNG), and whether to backup originals.
3
Bulk Optimize
Click Bulk Optimize to process your entire media library. Runs in batches — no server timeouts, no memory issues.
4
Auto on Upload
New images are automatically optimized on upload. Set it once and forget it. Every new image is already fast. (Pro)
Pricing

SIMPLE,
HONEST PRICING

Start free. Upgrade when you need more. No tricks, no hidden fees.

Free
FREE
$0 / forever
Perfect for getting started with basic optimization.
  • Manual optimization
  • Basic compression
  • Backup & restore originals
  • Bulk optimization
  • Auto compress on upload
  • WebP auto-conversion
Get Free Version
Pro
PRO
$19.99 / year
For single-site owners who want full automation.
  • 1 website
  • Bulk optimization
  • Auto compress on upload
  • WebP conversion
  • Backup & restore originals
  • Unlimited websites
Buy Pro
7-day free trial  ·  No credit card
MOST POPULAR
Unlimited
PRO UNLIMITED
$49.99 / year
For agencies and developers managing multiple WordPress sites.
  • Unlimited websites
  • Bulk optimization
  • Auto compress on upload
  • WebP conversion
  • Backup & restore originals
  • Priority support
🔥 Buy Unlimited
7-day free trial  ·  No credit card
90%
Avg file size reduction
JPG · PNG · WebP
Supported formats
PHP 8.0+
Requirement
WP 6.0+
WordPress version
0
External APIs used
FAQ

COMMON
QUESTIONS

Everything you need to know before getting started.

Are my original images safe?

Yes. Before any image is modified, a full backup is saved automatically. You can restore any single image or your entire library at any time with one click — no data loss ever.

Does it use an external API or send my images anywhere?

No. Smart Image Optimizer runs entirely on your server using PHP's built-in GD library. Your images never leave your server. No third-party services, no quotas, no privacy risks.

What is the difference between Pro and Pro Unlimited?

Both plans have identical features. The only difference is that Pro works on 1 website, while Pro Unlimited works on an unlimited number of sites. Pro Unlimited is the right choice for agencies and developers.

Does it slow down my website?

No — the opposite. Images are optimized once and stored on disk. Serving them is no different from serving any static file. The optimization happens offline, not on page load.

What PHP extensions are required?

PHP 8.0 or higher with the GD extension enabled. GD is installed by default on virtually all managed WordPress hosts including WP Engine, Kinsta, SiteGround, and Cloudways.

Can I use it on an existing site with thousands of images?

Yes. The bulk optimizer processes images in small batches to avoid server timeouts. You can pause and resume at any time. Works reliably on libraries with 10,000+ images.

START OPTIMIZING
TODAY

Free forever. Upgrade to Pro when you're ready. No credit card required for the trial.

✓ 7-day free trial  ·  ✓ No credit card required  ·  ✓ Cancel anytime