ChannelBuffer Studio — Free Interactive In-Browser Studio
Interactive Local Processing Studio
Instant 50ms preview directly in your browser. Zero server queues, zero data leaks.
Drop Local File Here or Click to Browse
Supports CSV, JSON, TXT, XML & Log Streams
📊 Step 4 · Processed Output
Zero Cloud Upload Guarantee
All files and records are processed strictly inside your browser memory. Nothing ever touches an external server.
Verify Results Before Paying
Test with built-in sample records or drop your own local file to inspect 70% of the processed output free of charge.
Unlock 100% Export & Offline App
Remove the 30% batch lock immediately with a €3.99 Single Pass or $19 Lifetime Buyout (includes standalone Offline PRO Workstation & Manual).
Quick Reference & Frequently Asked Questions
Why do I still oversell even when I use a real-time inventory sync app?
Because 'real-time' marketplace sync still suffers from 3-to-15 minute webhook queues, pending payment holds, and Amazon pending-order delays. If you have 40 units left and broadcast all 40 to Shopify, Amazon, and TikTok Shop during a traffic spike, multiple channels will accept orders for the same physical units before the quantity update propagates.
What happens if my Amazon Pre-Fulfillment Cancel Rate exceeds 2.5%?
Amazon requires sellers to maintain a Pre-Fulfillment Cancel Rate below 2.5%. Canceling seller-fulfilled orders due to out-of-stock errors strips your Buy Box share, penalizes organic ranking, and risks FBM listing deactivation.
Why shouldn't I set the same 20% holdback buffer on every sales channel?
Holding back 20% on your own high-margin Shopify store artificially throttles your most profitable sales. Instead, our margin-weighted waterfall publishes 95%–100% of available stock to your highest-margin DTC storefront while applying stricter 15%–30% holdback cushions to high-penalty, lower-margin marketplaces.
How does ChannelBuffer handle virtual bundles and 3-pack kits that share the same base SKU?
If a base SKU has 120 units in your 3PL, a 3-pack bundle has a theoretical maximum of 40 kits. However, publishing 120 single units AND 40 3-packs simultaneously creates 240 units of exposure. Our calculator partitions shared component inventory so single units and multipacks never collide.