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Free tools

No signup. No email wall. The real engine.

These aren't lead-magnet toys: each tool runs the same TypeScript engine that powers Duebay and its API, loaded into the page and executed client-side. No account, no upload, and the numbers you type never leave your browser, which you can verify in the network tab.

When the tools show a problem, the product fixes it

An aging report full of 60+ day balances is a chasing problem. Duebay puts every one on an escalating sequence.