Chrome Goldmine is a curated database of 9,656 expired Chrome extensions with revenue estimates, rebuild difficulty scores, and competitor analysis that helps developers find and build profitable micro-SaaS products.
What is Chrome Goldmine?
Chrome Goldmine is a research product that collects data on expired Chrome extensions (9,656 total) and outputs revenue projections, rebuild difficulty ratings, competitor gaps, and action plans. It runs as an interactive Notion workspace with searchable and filterable views, and includes a CSV export. Created by indie maker Raf Vantongerloo, it is sold as a one-time purchase on Gumroad.
Key Features
- Interactive Notion Database — 9,656 extensions with filterable columns for revenue potential, user base size, category, rebuild difficulty, and monetization model. Sorted and searchable in under 5 seconds.
- Revenue Estimates — Each extension includes a projected annual revenue based on user count, category benchmarks, and known monetization models (e.g., premium, SaaS, freemium).
- Rebuild Difficulty Scores — Low, Medium, or High ratings that help match extensions to your skill level; Low-difficulty extensions can be built with no-code tools or AI coding assistants.
- Competitor Analysis — For each expired extension, the database identifies active alternatives still in the Chrome Web Store and highlights their strengths and weaknesses so you can differentiate.
- CSV Export — Full dataset in CSV format for import into Airtable, Excel, or other tools. All data is portable and included with purchase.
- Quick Start Guide — Step-by-step playbook covering MV3 migration, tech stack choices, monetization strategies, and launch tactics for Product Hunt and Hacker News.
- Premium Research Report — Bonus deep-dive on highest-potential opportunities, market trends, and best niches for solo builders as of 2026.
Who is it for?
- Indie hackers and solo builders — find a validated extension idea with proven revenue potential and a clear gap you can fill using the competitor analysis.
- Vibe coders and no-code founders — filter by Low difficulty score to identify extensions you can build with AI tools or no-code platforms.
- Side-project seekers — quickly browse high-value extensions (e.g., uBlock Origin with $17.1M/yr, 38M users) and assess rebuild effort versus reward.
What can you do with Chrome Goldmine?
- Find a profitable niche: Filter by category (Productivity & Tools, Developer Ecosystem) and revenue potential to surface extensions like AdBlocker Ultra ($31.8M/yr, 67M users) or PDF Editor Suite ($23.2M/yr, 51M users) that are no longer maintained.
- Validate your idea before building: Use the competitor analysis tab to see which active alternatives exist, their ratings, and their missing features — then decide if you can outperform them.
- Launch faster with a ready-made plan: Follow the Quick Start Guide’s step-by-step action plan (8 weeks) and the included monetization playbooks for premium, freemium, and B2B SaaS models.
Pricing
One-time payment of $23.20 (discounted from $29 for the first 100 buyers). Includes lifetime updates (quarterly refreshes) and a 30-day money-back guarantee. No subscription required.
FAQ
Is the database updated regularly?
Yes. The database is updated quarterly with new expired extensions and refreshed competitor data. All updates are delivered automatically at no extra cost — you pay once and keep receiving future versions.
Do I need to know how to code?
No. The database includes a Rebuild Difficulty score (Low / Medium / High) so you can pick extensions that match your skill level. Many Low-difficulty extensions can be built with no-code tools or AI coding assistants, and the Quick Start Guide covers both technical and no-code paths.
