Zak Furness – Chrome & Browser Extension Developer

// about.js const zak = { name: "Zak Furness", role: "Chrome & Browser Extension Developer", company: "AbstractTek", location: "Wales, United Kingdom", experience: "10+ years", focus: "Browser Extensions, SaaS web apps, workflows & automation", techStack: [ "JavaScript", "TypeScript", "HTML", "CSS" ], portfolioStack: [ "Next.js", "React", "TypeScript", "Tailwind CSS", "Framer Motion" ], };

MySportsTab

Personalized sports dashboard that replaces the new tab: live news (RSS + YouTube), weather, and football standings/fixtures. Users pick teams and leagues; content is cached and refreshed in the background.

ChromeManifest V3SupabaseVanilla JS

FBAmultitool

All-in-one toolkit for Amazon sellers: faster product analysis, VAT checks, and profit calculations directly on retail and marketplace pages. Streamlines online arbitrage with quick data overlays and exportable sourcing info.

ChromeManifest V3REST APIsDashboard

Mates Rates

Browser extension that detects partner stores, surfaces member discounts, and can automatically apply codes at checkout. Lightweight in-page UI with light/dark themes and resilient injected styles across retail sites.

ChromeManifest V3Content ScriptsGoogle Sheets API

John Pye Auction Fee VAT Calculator

Lightweight extension that calculates the true total cost of John Pye auction lots (buyer's premium, VAT, fees) directly on auction pages. Real-time fee breakdown and built-in calculator for bidders.

ChromeManifest V3Content ScriptsVanilla JS

TED — The eBay Detective

Chrome extension that adds historical sales insights and profit calculations onto eBay listing, search, and message pages. In-page sales analytics (24h–90d), integrated profit calculator, and inbox overlays for resellers.

ChromeManifest V3SupabaseContent Scripts

SlabScout

Trading card investing extension: real-time pricing, historical value trends, and graded population insights while browsing. AI-powered image recognition, in-page card viewer, and data from TCGPlayer and PriceCharting.

ChromeContent ScriptsAPIsImage recognition

⭐ 5 Rated on Fiverr – Trusted by 180+ Clients

tylermathes

Australia

“A fantastic experience working with Zak. He immediately understood what I wanted and delivered a bug-free, well-designed extension that does exactly what I needed. He also went over and above with additional requests. Everything was delivered quickly and with great communication.”

iskuri

Finland

“I got everything I wanted, exactly like I imaged it. I gave him a bit of a problem to solve with my firefox plugin request, and he cracked it in a day. Very professional.”

rutvik_monpara

Canada

“He is an absolute gem, and working with him is both professional and a pleasure. His work truly reflects the quality and values he stands for.”

parthpatelllc

United States

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“I've worked with Zak multiple times now. Absolutely excellent at what he does.”