Fee calculators for resellers, WordPress plugin data, and a JSON viewer for Chrome.
Thimbleroot makes spreadsheets that work out marketplace fees and profit for a sale, a WordPress.org plugin data tool on Apify, and a Chrome extension that makes raw JSON readable.
- Spreadsheet
Reseller Fee Calculator 2026
Enter one sale and see the fees, payout and profit on eBay, Poshmark, Mercari, Depop and Etsy side by side.
Excel file that also opens in Google Sheets. Free, or pay what you want, on Gumroad.
- Apify
WordPress Plugin Intel
Pulls installs, ratings, days since last update and support resolution rate for WordPress.org plugins from the official plugin API.
Runs on Apify. You pay per result.
- Chrome
Peekbrace
Shows raw JSON as a tree you can fold, in the tab you opened it in.
Not yet published on the Chrome Web Store.
![Peekbrace tree view of a sample JSON response, with the path $.data[0].address.city shown in the toolbar](/img/home-tree-address-light.png)