List Faster,
Sell Sooner.
The Side-Panel Secret of Top Marketplace Sellers
Stop fighting with crop tools. FastLister automates Smart Centering and Auto-Slicing directly in your browser.
Perfect for TikTok Shop, Amazon, and Shopify listings.
Add to Chrome — It's Free Pairs perfectly with our Online Image Tools
Batch Image Diagnostics
for Modern E-commerce Sellers
Stop guessing. Our privacy-first engine validates 1:1 ratios, strips hidden metadata, and ensures format compliance in milliseconds.
Drop images to start scanning...
Instant Image Audit
Drop images here to auto-check 1:1 ratios, dimensions, and strip hidden EXIF metadata.
Diagnostic Report
Built for Efficiency
Focus on scaling your business while our algorithm handles the complex compliance and repetitive processing tasks.
6-Point Alchemy
Automated Ratio, Center, DPI, Metadata, Size, and Format fix. Achieve 100% compliance for TikTok Shop and Amazon in one click.
Bulk Automation
Batch process Unlimited images (Pro) with high-speed rendering. Auto-fix issues and export organized ZIP files for instant listing.
Smart Stitcher
Guided Long-image templates with Smart Padding and Auto-Slice. Seamlessly create high-converting A+ Content without size limits.
Zero-Server Leak
Local-first engine. Your assets, IP, and metadata stay in your browser. Compliance repair with zero privacy risk.
Simple, Transparent Pricing
Stop wasting hours on manual compliance. Choose the plan that scales with your business.
Starter
Free Forever
- ✓ 2 Batch Trials / Day
- ✓ 2 Stitch Trials / Day
- ✓ 6-Point Compliance Scan
- ✕ No Unlimited Processing
Pro Subscription
* Billed 39.99€ annually
- ✓ Unlimited Batch Alchemy
- ✓ Unlimited Image Stitching
- ✓ 40 Files Max Upload (vs 10)
- ✓ One-Click 6-Point Compliance Repair
- ✓ Multiple device support (3 Devices)
Frequently Asked Questions
Everything you need to know about our image compliance tool.
Q. Is my product data safe?
Absolutely. FastLister operates on a Local-First Engine. Your images never touch our servers; all processing—including Batch Alchemy and stitching—happens 100% within your browser to ensure your IP and metadata remain private.
Q. What is 'Batch Alchemy'?
Batch Alchemy is our signature 1-click workflow. It simultaneously repairs Ratio, Centering, DPI, Metadata, File Size, and Format across dozens of images at once, ensuring they meet the strict requirements of global marketplaces.
Q. How does the subscription work?
We offer a flexible Pro Subscription with Monthly and Yearly options. The Yearly plan offers the best value at a 33% discount. You can manage or cancel your subscription at any time with no hidden fees.
Q. Which platforms are supported?
While we specialize in TikTok Shop and Amazon (A+ Content), our custom presets also support Shopify, eBay, and Etsy. You can also define custom stitching templates for any specific marketplace needs.
Q. Why use the Chrome Extension over online tools?
The extension integrates directly into your seller workflow via the Side-Panel. Most importantly, it unlocks high-performance processing, handling up to 80 images simultaneously for Pro users—far exceeding the limits of standard browser-based tools.