<p><b>Startup Description</b></p><p>My project is a lightweight Chrome extension that lets users fully control the sound on any website directly in the browser.It provides a 10-band audio equalizer, bass booster, preamp, 21 ready-made presets for different genres, and the ability to save custom profiles. The extension works with YouTube and any other audio/video sites that play sound in the browser.</p><p>The project started from a simple pain point: inconsistent volume and sound quality across different websites and videos. It was initially built as a “tool for myself”, but thanks to simple UX and a clear, audible effect on sound, it grew into a mass-market product with 500,000+ actual users (internal statistics).Publicly, in the Chrome Web Store, it currently shows 400,000+ users, a 4.6★ rating, and around 7,600 reviews, and it has Featured status in the Entertainment category.</p><p><b>Key Highlights</b></p><ul><li>500,000+ users based on internal data.</li><li>400,000+ users, ~4.6/5 rating and 7,500+ reviews in the Chrome Web Store.</li><li>Featured extension status → extra trust and organic traffic from the store.</li><li>1,000+ daily active users use the extension every day.</li><li>Current version 3.5.8, last updated on November 3, 2025.</li></ul><p><b>Functionality</b></p><ul><li>10-band audio equalizer (+/- 12 dB on each band).</li><li>21 presets for different genres (Rock, Pop, Jazz, Dance, Hip-hop, Speech, Bass Booster, etc.) plus the ability to edit and save your own profiles.</li><li>Bass boost, surround-like effect, and the ability to push maximum volume beyond the default.</li><li>Low CPU usage and small package size (~202 KB).</li><li>50+ languages (Europe, Asia, Latin America, Ukraine, MENA, and others).</li></ul><p><b>Financial Metrics&nbsp;</b></p><ul><li>Annual revenue: ≈ $12,000/year from ads.</li><li>Annual profit: ≈ $12,000/year (infrastructure costs are almost zero).</li><li>Business margin: close to 100%.</li></ul><p><b>&nbsp;Important note:</b></p><ul><li>Current monetization is at the bare minimum – only basic advertising is enabled, with low ad intensity.</li><li>If you turn on more advertising (more placements, better ad networks with higher CPM, improved fill rate, A/B tested formats), ad revenue can be significantly increased, even without adding a Pro plan or paid features.</li></ul><p><b>Team</b></p><p>The project runs as a lean indie setup:</p><ul><li>Founder / main developer:</li><li>Owns product vision, UX, and roadmap.</li><li>Maintains the codebase (Manifest V3, Web Audio API), keeps compatibility with new Chrome versions.</li><li>Ships updates, handles user feedback, and maintains the rating.</li><li>Outsourced/part-time (if needed):</li><li>Designs the Chrome Web Store page (icons, screenshots, promo graphics).</li><li>Helps with localization (updating translations, adding new languages).</li></ul><p>For a buyer, this means: you only need 1–2 people to support and grow the product.</p><p><b>Tech Stack</b></p><ul><li>Platform: Chrome Extension, Manifest V3.</li><li>Languages: JavaScript/TypeScript, HTML, CSS.</li><li>Audio: Web Audio API – frequency band processing, bass boost, preamp, effects, volume control.</li><li>UI &amp; state: popup + options page, settings stored in Chrome storage.</li><li>Internationalization: i18n for 50+ languages (including English and Ukrainian).</li><li>Performance: ~202 KB package, low CPU usage even on low-end laptops.</li></ul><p><b>Marketing and Growth</b></p><ul><li>Organic traffic from the Chrome Web Store</li></ul><ul><li>Featured status brings extra impressions and installs from the store.</li><li>High rating (~4.6★) and thousands of reviews create strong social proof.</li></ul><ul><li>Search traffic</li></ul><ul><li>Users find the extension by searching for keywords, both in the Chrome Web Store and via Google.</li></ul><ul><li>Localization</li></ul><ul><li>50+ languages cover key regions: EU, US, Latin America, India, Southeast Asia, MENA, etc.</li></ul><ul><li>Product-led growth</li></ul><ul><li>Users immediately hear the result: louder, clearer sound, more bass, fewer distortions.</li><li>Custom presets for specific devices (headphones/speakers/TVs) increase engagement and retention.</li></ul><p><b>Monetization is intentionally minimal:</b></p><ul><li>Only a small number of ads are shown, with no aggressive formats.</li><li>Not all possible ad placements are used, and ad networks are not fully optimized for maximum revenue.</li></ul><p><b>Return on Investment&nbsp;</b></p><p>Starting position fo<i>r </i>a buyer:</p><ul><li>500,000+ total users.</li><li>1,000+ daily active users.</li><li>Current revenue: ≈ $12k/year, profit: ≈ $12k/year.</li><li>Monetization is deliberately “on minimum settings”.</li></ul><p><b>Illustrative scenario with proper monetization:</b></p><ul><li>If you convert just 1% of users into a Pro plan at $3/month:5,000 paying users × $3 = $15,000 MRR.</li><li>5,000 paying users × $3 = $15,000 MRR.</li><li>At 2% conversion:10,000 paying users × $3 = $30,000 MRR.</li><li>10,000 paying users × $3 = $30,000 MRR.</li></ul><p>Combined with stronger ad monetization, this gives a large upside for increasing ARR and potentially a short payback period, compared to a project that needs to be built from scratch.</p><p><b>Startup Assets</b></p><ul><li>The “Equalizer for Chrome browser” extension in the Entertainment category with 400,000+ publicly shown users, ~4.6★ rating, and Featured status.</li><li>All store listing content: name, description, localized texts, icon, screenshots.</li><li>Codebase: Full source code of the extension (equalizer, presets logic, UI, Web Audio API integration, Manifest V3).Build/deploy system and configuration for the Chrome Web Store.</li><li>Full source code of the extension (equalizer, presets logic, UI, Web Audio API integration, Manifest V3).</li><li>&nbsp;Build/deploy system and configuration for the Chrome Web Store.</li><li>Localization packTranslation files for 50+ languages (including English and Ukrainian).</li><li>Translation files for 50+ languages (including English and Ukrainian).</li><li>Access to the Chrome Developer Dashboard for this extension.</li><li>Privacy policy and support contact.</li><li>The official support email associated with the extension.</li></ul></br>✅ $12,000 in Annual revenue✅ 500,000 customers✅ Business model: Ads✅ Built with JavaScript, CSS, React