Expired Chrome extensions · Manifest V3 graveyard · 9,656 researched

    9,656 expired extensions with demand already proven.

    Pick one. Rebuild it. Make Money.

    Each listing is an extension people already installed — then it died. You get historical users, category, rebuild difficulty, why it died, who competes now, and a step-by-step rebuild plan. The research is done. You choose and build.

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    Sample · 20 of 9,656

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    Session stackFull sample·48,200 historical users·Productivity·LowJSON formatter·12,400 historical users·Developer Tools·LowPrice watch·31,800 historical users·Shopping·MediumReading mode·64,100 historical users·Accessibility·LowColor eyedropper·22,900 historical users·Design·LowTab suspender·91,400 historical users·Productivity·MediumCookie inspector·8,600 historical users·Developer Tools·LowFocus timer·17,200 historical users·Productivity·LowCoupon clipper·40,500 historical users·Shopping·MediumDark sites·55,000 historical users·Customization·LowSession stackFull sample·48,200 historical users·Productivity·LowJSON formatter·12,400 historical users·Developer Tools·LowPrice watch·31,800 historical users·Shopping·MediumReading mode·64,100 historical users·Accessibility·LowColor eyedropper·22,900 historical users·Design·LowTab suspender·91,400 historical users·Productivity·MediumCookie inspector·8,600 historical users·Developer Tools·LowFocus timer·17,200 historical users·Productivity·LowCoupon clipper·40,500 historical users·Shopping·MediumDark sites·55,000 historical users·Customization·Low

    Sample · 20 of 9,656

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    Category
    Difficulty
    Historical users
    Died because
    Sample of 20 expired Chrome extensions out of 9,656
    NameHistorical usersCategoryDifficultyDied becauseEst. monthlyAction
    Tab Suspender ReloadedSleeps background tabs to cut RAM.91,400ProductivityMediumMV3$600–$1,800
    Reading Mode CleanDistraction-free article view.64,100AccessibilityLowAbandoned$400–$1,200
    Dark SitesPer-site dark theme.55,000CustomizationLowMV3$300–$900
    Coupon ClipperAuto-applies working codes at checkout.40,500ShoppingMediumAbandoned$800–$2,400
    Grammar LiteInline writing suggestions.36,700WritingHighMV3$1,000–$3,000
    Price WatchAlerts when a product drops.31,800ShoppingMediumMV3$700–$2,000
    New Tab DigestRSS + todos on new tab.27,300New TabMediumAbandoned$400–$1,400
    Color EyedropperPick any pixel's hex/rgb.22,900DesignLowPolicy$200–$700
    Privacy ShieldTracker blocking + cookie purge.19,800PrivacyHighPolicy$500–$1,500
    Focus TimerPomodoro in the toolbar.17,200ProductivityLowAbandoned$300–$1,000
    Markdown ClipperClip selection to Markdown.15,600WritingLowMV3$300–$900
    Linked SnippetsSaved replies for LinkedIn.14,900SocialMediumAbandoned$800–$2,200
    JSON FormatterPretty-print JSON in-page.12,400Developer ToolsLowMV3$200–$600
    Form SaverRecalls long form drafts.11,100ProductivityMediumMV3$400–$1,100
    Palette ExportExport page colors to Tailwind/CSS.9,200DesignLowMV3$200–$600
    Cookie InspectorRead/edit cookies per host.8,600Developer ToolsLowPolicy$200–$500
    SERP SnapshotSave SERP layouts over time.7,400SEOMediumAbandoned$600–$1,800
    Volume MemoryRemembers per-site volume.6,300MediaLowAbandoned$100–$400
    A11y ContrastWCAG contrast overlay.5,800AccessibilityLowAbandoned$200–$500

    Sample names are representative composites so we don't leak the full unpaid dataset. Full access uses the real 9,656 listings.

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    Profitable Chrome extension ideas in every category

    Expired extensions aren't spread evenly — some niches died harder than others. The database spans productivity tools, developer utilities, shopping helpers, privacy blockers, writing aids and more, each listing rated for rebuild difficulty and monthly revenue potential.

    • Productivity
    • Developer Tools
    • Shopping
    • Privacy
    • Writing
    • New Tab
    • Accessibility
    • Design
    • Social
    • SEO