VaultSeller — eBay Seller Tools

Profit calculator, price history, competitor analysis & listing optimiser for eBay sellers.

VaultSeller gives eBay sellers the tools that Seller Hub forgot to build — right on the listing page, without opening a spreadsheet. 💰 PROFIT CALCULATOR (Free) Know your real profit before you list or buy. VaultSeller auto-detects eBay's fee structure for the current category and pre-fills the selling price from the listing. Just enter what you paid for the item and instantly see: • Net profit in pounds • Profit margin % • ROI % • Break-even selling price • Full eBay fee breakdown (FVF by category, managed payments fee, optional insertion fee) Supports Top Rated Seller 10% discount and all UK store levels (Basic, Featured, Anchor). 📈 SOLD PRICE HISTORY (Free — 30 days | Pro — 90 days) See what items actually sell for, not just what sellers are asking. Powered by the official eBay Finding API. For every listing you view, VaultSeller shows: • Average, minimum, and maximum sold prices • Individual sale records with dates, conditions, and format (auction vs fixed price) • Trend chart (Pro) Know your market before you list. 🏷 SEARCH RESULT PROFIT BADGES (Free) Every listing in your eBay search results gets a live profit badge — green for profitable, amber for marginal, red for a loss — based on your settings. Spot the flips worth pursuing without clicking into every listing. 📊 LISTING SEO SCORER (Pro) Score your own eBay listings out of 100. VaultSeller analyses title quality, description completeness, image count, and pricing strategy, then gives you specific, actionable recommendations to improve your search ranking and conversion rate. 👁 COMPETITOR WATCHLIST (Pro — up to 50) Add competitor sellers or specific listings to your watchlist. VaultSeller checks for price changes and new listings daily in the background and shows alerts in your dashboard the next time you open the extension. 🏪 SELLER HUB ENHANCEMENT (Free — 10 rows | Pro — all rows) Injects a "VS Profit" column directly into your eBay Seller Hub active listings table. See estimated net profit for every item without opening each listing individually.