Private by design

Every tool runs in your browser. The numbers and text you enter are not sent to our server or stored.

Sources you can check

Where a tool depends on outside rules, such as marketplace fees, we link the official page and show when we last checked it.

Explained, not just calculated

Each tool shows the formula and a worked example, and links to an in-depth guide.

Why we built DailyToolLab

Many small everyday jobs, such as working out a price, checking a fee, finding a percentage or counting words, are quicker with a simple, focused tool than with a spreadsheet. DailyToolLab builds those tools, explains how each one works and keeps them free.

Seller Tools

Selling online looks simple until the first payout arrives. Listing fees, transaction fees, payment processing, advertising fees and currency conversion each take a small slice, and they are easy to underestimate. Our Seller Tools turn each platform's published fee rules into clear calculators, so you can see exactly what a sale is worth before you set a price. They are useful for makers selling handmade goods, small online shops comparing Shopify and eBay costs, new sellers pricing their first listing and established shops planning promotions.

Everyday Tools

Our Everyday Tools handle the calculations people search for most often at school, at work and at home: a percentage calculator for discounts, growth and test scores, an age calculator that counts exact years, months and days, and a word and character counter for essays, posts and product descriptions. More categories will be added over time.

Latest guides

All guides →

DailyToolLab is an independent website. We are not affiliated with, endorsed by or sponsored by Etsy Inc., Shopify Inc. or eBay Inc. Results are estimates for planning, so always confirm fees in your own seller account.