How sellers use Gridwinner

Four sourcing workflows the terminal was built around — what the problem looks like, what Gridwinner does with it, and what you are left holding at the end.

Wholesale

Screening a supplier price list

A distributor sends over a spreadsheet with a few thousand lines. Checking each one against Amazon by hand is a day's work, and a spreadsheet that size tends to stall once you start adding formula columns.

Drop the .csv, .xlsx or .tsv straight in — Gridwinner detects the column layout rather than asking you to map it.
Every row is costed at once: referral fee, fulfilment fee by size tier, and net margin.
Add prep, inbound shipping, VAT and a returns allowance once, and the true cost applies to the whole file.
Sort by ROI, filter out anything under your threshold, and work from what is left.

You start from a ranked, costed shortlist instead of an unsorted list of ASINs.

Keepa

Reading a bulk Keepa export

Keepa exports are precise but wide. Opening charts one ASIN at a time is fine for ten products and unworkable for a thousand.

Gridwinner reads the Keepa CSV layout directly, including the minute-based timestamps.
Rank history and offer counts are read across every row in one pass.
Demand and price-stability signals are derived per product, so slow movers separate from fast ones.
Products where Amazon or a crowded offer list holds the Buy Box get flagged before you commit.

The whole export gets the same read you would have given the first twenty rows.

Online arbitrage

Working through a large deal list

Shared OA lists go stale quickly. Most of the value is in finding the few lines still worth buying before everyone else does.

Screen the full list against Amazon economics in one pass.
Apply your own minimum ROI and margin as filters, not as manual checks.
Saturation and risk signals surface the listings likely to be contested.
Grades collapse the result into something you can scan quickly.

Time goes into the handful of lines worth a closer look.

Privacy

Keeping supplier data off other people's servers

Supplier pricing is commercially sensitive, and plenty of sourcing tools require you to upload it to their cloud before they will analyse it.

Parsing and analysis run in your browser, in a web worker.
Your file is not sent to a Gridwinner server, because there is no server-side ingest to send it to.
You can verify this yourself: open your browser's network tab while a file is processing.

The supplier list stays on your machine, and the claim is one you can check rather than take on trust.

Try it on a file you already have

No account needed to run your first list. Create one when you want your settings and results to still be there next time.

Upload a list →

How sellers use Gridwinner

Four sourcing workflows the terminal was built around — what the problem looks like, what Gridwinner does with it, and what you are left holding at the end.

Wholesale

Screening a supplier price list

Drop the .csv, .xlsx or .tsv straight in — Gridwinner detects the column layout rather than asking you to map it.
Every row is costed at once: referral fee, fulfilment fee by size tier, and net margin.
Add prep, inbound shipping, VAT and a returns allowance once, and the true cost applies to the whole file.
Sort by ROI, filter out anything under your threshold, and work from what is left.

You start from a ranked, costed shortlist instead of an unsorted list of ASINs.

Keepa

Reading a bulk Keepa export

Keepa exports are precise but wide. Opening charts one ASIN at a time is fine for ten products and unworkable for a thousand.

Gridwinner reads the Keepa CSV layout directly, including the minute-based timestamps.
Rank history and offer counts are read across every row in one pass.
Demand and price-stability signals are derived per product, so slow movers separate from fast ones.
Products where Amazon or a crowded offer list holds the Buy Box get flagged before you commit.

The whole export gets the same read you would have given the first twenty rows.

Online arbitrage

Working through a large deal list

Shared OA lists go stale quickly. Most of the value is in finding the few lines still worth buying before everyone else does.

Screen the full list against Amazon economics in one pass.
Apply your own minimum ROI and margin as filters, not as manual checks.
Saturation and risk signals surface the listings likely to be contested.
Grades collapse the result into something you can scan quickly.

Time goes into the handful of lines worth a closer look.

Privacy

Keeping supplier data off other people's servers

Supplier pricing is commercially sensitive, and plenty of sourcing tools require you to upload it to their cloud before they will analyse it.

Parsing and analysis run in your browser, in a web worker.
Your file is not sent to a Gridwinner server, because there is no server-side ingest to send it to.
You can verify this yourself: open your browser's network tab while a file is processing.

The supplier list stays on your machine, and the claim is one you can check rather than take on trust.

Try it on a file you already have

No account needed to run your first list. Create one when you want your settings and results to still be there next time.

Upload a list →

How sellers use Gridwinner

Sourcing workflows

Screening a supplier price list

Reading a bulk Keepa export

Working through a large deal list

Keeping supplier data off other people's servers

Try it on a file you already have

How sellers use Gridwinner

Sourcing workflows

Screening a supplier price list

Reading a bulk Keepa export

Working through a large deal list

Keeping supplier data off other people's servers

Try it on a file you already have