KeepMargin connects to your Etsy shop and shows what you actually kept on every order after Etsy fees, Offsite Ads, shipping, and your own costs. It helps sellers spot listings that look strong in revenue but weak in margin. Etsy is live now. Shopify is coming soon.
ToolCrux is a collection of 42 developer and utility tools that run entirely client-side. No accounts, no data sent to servers.
What makes it different:
• Tool chaining — output from one tool flows into the next
• Shareable state — share any tool's state via a short link
• Embeddable — embed any tool on your site with one iframe tag
• 1,400+ SEO landing pages for quick answers (timestamps, hashes, conversions)
Built with vanilla JS, Cloudflare Workers, and zero frameworks.
