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Free Reseller Tools

In-browser tools for resellers. No signup. No ads. No data leaves your device.

Reselling throws up the same handful of awkward questions over and over: what is this hallmark, what date is this piece, what will eBay take after fees, is this even worth listing. Most answers are buried in forum threads or behind sign-up walls. These tools are the quick, honest answers — built for the way UK resellers actually work: at a car boot in the rain, in a charity shop queue, or sorting a haul on the kitchen table. Everything runs in your browser, so it works on your phone and nothing you type is sent anywhere.

They’re free because they’re the same problems we hit sourcing and listing every week. If a tool earns its place by genuinely saving you time, it stays; if it’s just filler, we don’t ship it.

Available now

  • UK Silver Hallmarks Identifier — step-by-step wizard: pick the marks on your piece, get the metal, the assay office, and a rough date range.

Office-specific pages

  • London silver hallmarks — leopard’s head, since 1478
  • Birmingham silver hallmarks — anchor, since 1773
  • Sheffield silver hallmarks — crown / Yorkshire Rose, since 1773
  • Edinburgh silver hallmarks — three-towered castle, since 1457

About these tools

These tools are built to actually be useful, not to be padding. Each one is a focused answer to a question UK resellers ask repeatedly. We’d rather ship one tool that works really well than ten tools that look impressive in a list.

If there’s a tool you’d find useful, tell me.

© 2025–2026 Oleksandr Prudnikov

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