Shopping & price comparison tools
Ten instant shopping calculators that run entirely in your browser — no signup, no upload, no ads.
100% client-side · no upload · no tracking
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Discount Calculator
Enter original price and discount percentage to instantly see the sale price and amount saved.
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Sale vs Coupon Comparison
Compare a percentage-off sale against a fixed-value coupon to find the better deal.
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Shipping Cost Estimator
Estimate shipping costs by weight and carrier rate to decide if free-shipping thresholds are worth it.
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Return Deadline Calculator
Calculate the exact return-by date from your purchase date and the store's return window.
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Refund Calculator
Estimate your refund amount after deducting restocking fees, shipping, or partial-use charges.
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Gift Budget Planner
Allocate a total gift budget across multiple recipients and track remaining funds as you go.
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Price Per Unit Comparator
Compare the unit price of up to four product sizes or packs to find the best value.
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Bulk Buy Savings Calculator
Calculate how much you save buying in bulk versus single units at different price points.
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Recurring Cost Analyzer
Convert any recurring expense (daily, weekly, monthly, yearly) to all other time frames.
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Subscription Tracker
Add all your subscriptions and see the total monthly and annual cost at a glance.
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Why use browser-based shopping tools?
Every calculator on this page runs entirely inside your browser — your purchase data, budgets, and subscription details never leave your device. That means instant results, full privacy, and tools that work offline once the page has loaded. Whether you're comparing unit prices at the grocery store or tracking monthly subscriptions, these tools give you the numbers you need to make smarter spending decisions.