PixelTrim vs WebP Image Optimizer
Two Shopify apps, side by side: detected stores, momentum, reviews, plans, listed features and who runs each. Store counts as of Nov 8, 2026 for PixelTrim, Oct 13, 2026 for WebP Image Optimizer.
The short answer
- Only WebP Image Optimizer lists a free plan. Paid plans start at $30/month for PixelTrim and $10/month for WebP Image Optimizer.
- PixelTrim lists 4 features WebP Image Optimizer’s listing doesn’t mention, including AI generation, Alt text, Generative fill.
Head to head
Basic
- · AI Alt Text Suggestions OpenAI + Claude
- · Automatic WebP Conversion
- · Before/After Metrics
- · Bulk Processing
- · Core Web Vitals (LCP, FID, CLS)
- · Page Speed Impact Analysis
Free
- · 25 images included
- · Bulk scan & optimize all products
- · Preview before every change
- · Theme & files banner optimization
- · Upload & convert tool
Starter
- · 1,000 image optimizations per month
- · Bulk scan & optimize all products
- · Optimize entire store in one click
- · Theme & files banner optimization
- · Upload & convert tool
Growth
- · 10,000 image optimizations per month
- · Bulk scan & optimize all products
- · Optimize entire store in one click
- · Theme & files banner optimization
- · Upload & convert tool
Pro
- · 100,000 image optimizations per month
- · Bulk scan & optimize all products
- · Optimize entire store in one click
- · Theme & files banner optimization
- · Upload & convert tool
Coverage counts what each App Store listing names. Every feature, checked off app by app, is in Shoplist.
See every featurePixelTrim helps you run a smooth store without sacrificing image quality. It compresses your product images and converts them to modern WebP format, reducing the large file sizes that slow down pages. You can optimize images in bulk or one product at a time, while keeping the original quality. PixelTrim also writes clear, descriptive alt text for your images using AI, improving accessibility and search visibility.
WebP Image Optimizer compresses your Shopify store's product images and theme files to WebP format, significantly smaller than JPEG and PNG with no visible quality loss. Optimize product images with one click for all products. Use the collections view for targeted optimization. Theme and banner images are supported with the same URL preserved so your theme keeps working without any changes.
- Automatic image compression and WebP conversion while preserving quality
- Bulk optimize all product images or fine-tune them one product at a time
- AI-generated alt text for images to support SEO and accessibility
- Optimize product images to WebP format in one click
- Theme and banner images optimized with the same URL preserved
- Upload any image and compress it instantly to WebP
- Preview before and after, and approve each change before it goes live
All the numbers
Every figure, side by side
A green dot marks the app ahead on a measured figure. Estimates, gaps and apps that leave no storefront trace never take the lead.
Adoption
| Measure |  PixelTrim |  WebP Image Optimizer |
|---|---|---|
| Detected stores | Not published | Not published |
| Net store change, 28 days | 0 | 0 |
| Stores added, 28 days | Not enough data | Not enough data |
| Big-brand share | Not enough data | Not enough data |
| Top store categories | Not published | Not published |
| Top store countries | Not published | Not published |
Reviews
| Measure | PixelTrim | WebP Image Optimizer |
|---|---|---|
| App Store rating | 5.0 ★ | Not published |
| App Store reviews | 2 | Not published |
| New reviews, 28 days | Not enough data | Not enough data |
| Reviewers a year or more in | Not enough data | Not enough data |
Pricing
| Measure | PixelTrim | WebP Image Optimizer |
|---|---|---|
| Free plan | Not listed | Yes |
| Lowest paid monthly plan | $30/month | $10/month(ahead) |
| Longest free trial | Not listed | Not listed |
| Plans listed | 1 | 4 |
Listing
| Measure | PixelTrim | WebP Image Optimizer |
|---|---|---|
| Shopify category rank | #54(ahead) | #156 |
| Shopify App Charts | Not on this week’s charts | Not on this week’s charts |
| Built for Shopify | No | No |
| Launched | Jun 16, 2026 | Jul 29, 2026 |
| Languages | 1 | 1 |
| Developer | PixelTrim | Newyon |
FAQ
PixelTrim and WebP Image Optimizer: common questions
- Is PixelTrim or WebP Image Optimizer cheaper?
- Only WebP Image Optimizer lists a free plan. Paid plans start at $30/month for PixelTrim and $10/month for WebP Image Optimizer. Shoplist compares base prices only between monthly plans in the same currency; usage charges and annual plans vary, so check each plan’s limits.
- What features does each app list that the other doesn’t?
- PixelTrim lists 4 the others don’t mention, such as AI generation, Alt text, Generative fill, SEO. WebP Image Optimizer lists 3 the others don’t mention, such as Auto-optimization, File upload, Format conversion. A feature missing from a listing may still be supported; this compares what each App Store listing says.
- Where does this comparison’s data come from?
- Shoplist crawls Shopify storefronts to detect which apps each store runs, and reads each app’s Shopify App Store listing for reviews, pricing, features and integrations. Store counts are as of Nov 8, 2026 for PixelTrim, Oct 13, 2026 for WebP Image Optimizer; estimated figures are labeled.
How Shoplist compares apps
Store counts come from Shoplist’s crawl of Shopify storefronts, which detects the apps each store runs; they are as of Nov 8, 2026 for PixelTrim, Oct 13, 2026 for WebP Image Optimizer. Reviews, ratings, plans, features and integrations come from each app’s Shopify App Store listing. 28-day figures are labeled when estimated, and a figure that is missing or estimated never decides who leads. Read the methodology.