Estimate your Chrome extension's monthly and annual income based on real benchmarks from 9,650+ analyzed extensions across 7 niches. Adjust users, conversion rate, pricing, and payment processor to model your exact scenario.
Large market, freemium works well
Projected yearly income
Pays for your tools & subscriptions. Meaningful momentum.
Chrome extension revenue follows a straightforward freemium funnel. You start with a pool of active users — defined as weekly active users, not raw installs. A percentage of those users convert to paid (the freemium conversion rate). Each paying user contributes a monthly subscription fee (the average revenue per user, or ARPU). From that gross figure, you subtract payment processor fees and any infrastructure costs to arrive at net monthly revenue.
Active Users are weekly active users, not total installs. The ratio of active users to installs varies widely — productivity tools often retain 30–50% of installs as weekly actives, while one-time-use utilities may retain only 5–10%. If you only know your install count, a conservative estimate is to use 20% of installs as your active user figure.
Freemium Conversion Rate is the percentage of active users who upgrade to a paid plan. The industry average across all Chrome extensions is 0.5–2%. High-intent professional tools (SEO, developer tools) regularly achieve 3–5%. AI-powered extensions with clear per-use value often convert at 3–6%. A conversion rate above 3% is considered excellent and typically signals strong product-market fit.
ARPU (Average Revenue Per User) is the monthly price paid by each subscriber. This varies significantly by niche: developer tools command $20–$40/month, SEO tools $15–$30/month, AI tools $10–$25/month, and general productivity tools $3–$7/month. Annual plans typically offer a 20–40% discount, which can improve conversion but reduces monthly cash flow.
Processing Fees are charged by your payment processor on every transaction. Stripe charges 2.9% + $0.30 per transaction — the lowest rate available — but requires backend infrastructure. Merchant of Record solutions like Dodo Payments or Lemon Squeezy charge higher fees (5%) but handle global VAT/GST compliance automatically — a significant advantage for solo founders selling internationally.
The figures below are drawn from publicly verified sources — IndieHackers revenue dashboards, developer interviews, and direct disclosures. They represent the full spectrum of what Chrome extensions can earn, from side-income projects to full-time businesses. Use them as calibration points when interpreting your calculator results.
| Extension | Niche | Model | Monthly Revenue | Source |
|---|---|---|---|---|
| GMass | Email / SEO | Subscription $8–$20/mo | $130,000 | IndieHackers ↗ |
| Closet Tools | E-commerce | Subscription $30/mo | $42,000 | IndieHackers ↗ |
| CSS Scan | Developer Tools | One-time $69 | $100,000+ | IndieHackers ↗ |
| GoFullPage | Productivity | Freemium $1/mo | $10,000 | IndieHackers ↗ |
| Night Eye | Accessibility | Freemium + Lifetime | $3,100 | IndieHackers ↗ |
| BlackMagic | Social / Twitter | Subscription $8/mo | $2,000 | IndieHackers ↗ |
| Weather Extension | Utilities | Freemium $9.99/mo | $2,500 | IndieHackers ↗ |
Revenue figures are as reported by developers at the time of disclosure. Data sourced from ExtensionPay's monetization research and IndieHackers public revenue dashboards.
This Chrome extension revenue calculator was built by Chrome Goldmine — a research platform specializing in Chrome extension market analysis. Our underlying dataset covers 9,650+ discontinued and active Chrome extensions across six verticals, with revenue estimates, rebuild difficulty scores, and competitor analysis. The calculator benchmarks are derived from this dataset, cross-referenced with publicly disclosed revenue figures and payment processor documentation.
The estimates produced by this tool are projections based on industry averages, not guarantees. Actual revenue depends on execution quality, marketing effectiveness, product-market fit, and timing. Extensions in the same niche with identical user counts can vary by 10x in revenue depending on how well the freemium funnel is designed. Use this calculator as a directional planning tool, not a financial forecast.
For deeper research into profitable Chrome extension niches, see our profitable Chrome extension niches guide and our Chrome extension monetization overview. If you are looking for validated extension ideas with revenue estimates and implementation guides, explore the Chrome Goldmine database.
The Chrome Goldmine database contains 9,650+ analyzed Chrome extensions — each with revenue estimates, rebuild difficulty scores, user demand data, and competitive gap analysis. Stop guessing which extension to build next. Browse ideas already validated by real market data.