DigiTool Shed
Handy Online Tools
Free online tools — calculators, generators, converters, and checkers.
Browse our tools
Etsy Fee Calculator
Estimate Etsy fees for one order and check net revenue before pricing a listing.
Combined Seller Calculator
Compare fees and profit across Etsy, Shopify, and more in one place.
Word Unscrambler
Unscramble mixed letters and check whether a word is in the current dictionary.
Board Game Word Checker
Verify a word is valid before playing it on game night.
POD T-Shirt Profit Calculator
Calculate print-on-demand profit margins for t-shirts and apparel.
Gym Shirt Size Calculator
Find the right shirt size based on your measurements and fit preference.
Browse by category
Seller & Creator Tools
13 toolsFee, profit, and margin calculators for online sellers, POD shops, and creator workflows.
Word & Game Tools
8 toolsLetter helpers, dice rollers, randomizers, and score trackers for game night.
Color Tools
31 toolsColor code conversions and swatch previews for quick creative work.
Fitness & Apparel Tools
1 toolFast fit and sizing tools for gym shoppers and apparel buyers.
AI & Software Tools
1 toolGuide-style comparisons for people evaluating software before they buy.
Home & DIY Tools
12 toolsPractical calculators for home improvement projects — paint, cost, coverage, and more.
What is DigiTool Shed?
DigiTool Shed is a free library of single-purpose online calculators and tools, built for people who need a quick, accurate answer without signing up or wading through clutter. Each tool focuses on one job — a fee calculator, a word checker, a size converter — and shows its math so you can see exactly how the result was reached.
Seller and game tools
The current lineup is built around online selling: Etsy, eBay, Shopify, Depop, Mercari, Poshmark, PayPal, and Facebook Marketplace fee calculators, plus cross-platform comparison tools for sellers deciding where to list. A second set of word and game tools — anagram solvers, dice rollers, score counters — covers game night. New categories are added as they're built, not promised in advance.
Fee checks
We check each platform's official fee page and show the date we last checked.
Trust and privacy
No signup. The tools run in your browser. What you type is not sent to a DigiTool Shed server. This site loads Google Analytics and Google AdSense, and a few paint tools also send a short result, such as gallons or a sheen name, to Google Analytics. Your Classic or Gamer choice is saved in this browser.
Got a tool you wish existed? Tell me on the Contact page.