Chrome Goldmine is a curated database of over 9,600 expired Chrome extensions that were previously profitable, designed for indie hackers, solo SaaS builders, and developers who want to identify rebuild opportunities. Available at chromegoldmine.com, the database lists each expired extension with revenue estimates, rebuild difficulty scores, competitor analysis, and a step-by-step action plan. The premise is straightforward: when a popular Chrome extension stops being maintained, its user base is left without a working solution, creating an opening for someone to rebuild and capture that demand. For developers looking for validated product ideas with evidence of existing market demand, Chrome Goldmine offers a research shortcut - but the thin public evidence means prospective buyers should verify what the database actually contains before purchasing.
Indie developers who want to find a product idea with demonstrated demand can use the database to identify extensions that had paying users before they expired. Rather than guessing what people might want, builders can see what they already paid for - and then rebuild a working version for the abandoned user base.
Solo SaaS builders looking for low-complexity projects can filter by rebuild difficulty score to find extensions that are technically feasible to recreate within a limited budget and timeframe. The difficulty rating helps narrow the list to opportunities that match a builder's skill set and available effort.
Developers who want to assess competitive landscape before starting a project can use the competitor analysis data to understand whether the niche is crowded or still underserved. This helps avoid rebuilding an extension into a market that is already well-covered by active alternatives.
The site describes the product as a "complete database" but does not display a specific price on the public page. No free tier, subscription plan, or one-time purchase amount is visible. Prospective buyers should visit the site directly or contact the creator to confirm current pricing and what is included at each tier.
The public page is minimal - a single landing page with the core pitch and a description of what the database contains. No documentation, FAQ, help center, or support contact is visible on the fetched page. Users who need more detail about the data format, update frequency, or access method will need to seek that information directly from the creator, as the public site does not provide it.
Chrome Goldmine is a database product focused on the Chrome extension ecosystem. Each entry covers an expired extension with revenue estimates, difficulty ratings, competitor information, and a rebuild plan. The site does not disclose how the revenue estimates were calculated, what data sources were used to compile the database, how often it is updated, or whether the data is delivered as a downloadable file, a web dashboard, or an API. The only visible technical signal is the "Chrome" integration tag, which refers to the extension platform being analyzed, not a product integration.
Pros
Cons
Chrome Goldmine is a database of 9,656 expired Chrome extensions that were previously profitable. It is designed for indie hackers, solo SaaS builders, and developers who want to find validated product ideas by identifying extensions with demonstrated user demand that no longer have a working solution.
According to the site, each entry includes revenue estimates for the original extension, a rebuild difficulty score, competitor analysis, and a step-by-step action plan for rebuilding it. The site does not provide examples of what these entries look like or how the data is formatted.
The site does not disclose the methodology behind the revenue estimates. Buyers should verify how these figures were derived and whether they reflect actual reported revenue or modeled estimates before relying on them for business decisions.
The public page does not specify whether the database is a downloadable file, a web dashboard, an API, or another format. It also does not mention update frequency - whether the data is a static snapshot or refreshed as new extensions expire. These details should be confirmed before purchasing.
No preview, sample entries, or free tier is visible on the public page. The site shows only a high-level description of what the database contains. Prospective buyers may need to contact the creator for a sample or more detailed information about what they are purchasing.
The database is based on the current Chrome extension ecosystem. If Chrome changes its policies, extension requirements, or marketplace structure, some expired extension opportunities may become harder to rebuild or less viable. Builders should factor this platform dependency into their evaluation.
Chrome Goldmine addresses a real problem for indie developers - finding product ideas with validated demand - by cataloging expired Chrome extensions that once had paying users. The concept is practical: rebuild what people already paid for, and capture the abandoned audience. However, the public page provides very little detail about the database contents, data methodology, pricing, delivery format, or update frequency. The revenue estimates in particular lack transparency about how they were calculated. For developers who are comfortable with the niche and willing to verify these details before committing, Chrome Goldmine could be a useful research tool - but the thin public evidence means buyers should confirm what they are actually getting before paying.
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