Absolute Privacy
Your CSVs never touch our servers. Processing happens 100% locally in your browser. Your supplier leads remain exclusively yours.
We built the terminal we wished we had.
Gridwinner was forged from the frustration of crashing spreadsheets, slow web scrapers, and the constant fear of stolen supplier leads. We decided to fix it.
Born from the Keepa data bottleneck.
The idea for Gridwinner didn't start with a business plan; it started with a roadblock. While building Glitchdeals—a platform engineered to be the UK's fastest deal finder—our founder needed to pull massive amounts of data using the Keepa API. Dealing with Keepa Pro files meant staring down raw, 50,000-row CSV exports filled with complex sales rank drops, buy box rotations, and cryptic data points.
It sparked an immediate realization: If a developer actively building tech is getting bogged down by these massive spreadsheets, how is an everyday Amazon FBA seller supposed to survive? Not everyone has a background in Python, and nobody should have to write complex Excel macros just to figure out if a product is profitable.
Gridwinner was built to bridge that gap. We engineered a blazing-fast, local data parser that takes those chaotic 50,000-row supplier lists and Keepa exports, and instantly translates them into clear, actionable insights. Whether a guest is dropping in a file for a quick trial scan, or a premium user is processing massive daily wholesale lists, the terminal does the heavy lifting so sellers can just focus on sourcing.
> Processing locally...
> Web Workers active
> Zero cloud upload
Our Core Tenets
Millisecond Execution
Built with virtualization and optimized data structures. Drop a 50,000-row sheet and filter to your winners instantly without freezing your tab.
Ruthless Accuracy
Our True Cost Ledger accounts for category-specific referral fees, precise FBA weight tiers, and inbound shipping costs. Know your exact ROI before you buy.
We engineer the fastest terminal for the entire spectrum of our community—whether you are a guest running a quick trial scan, a logged-in user tracking your daily sourcing history, or a premium user chewing through 100,000-row mega-lists.
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