Well-Known Ports Reference
A searchable reference of well-known and common ports with service names, protocols and descriptions, including many DevOps and database ports. Search by number or service. Offline.
Query Builder for Google
Build advanced Google search queries with operators, geo-targeting, time filters, trend insights, and live query previews. Perfect for SEO, research and power users.
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Markdown to HTML
A browser extension (Chrome & Firefox) that enables real-time markdown editing with live HTML preview. Users can write markdown on the left pane and instantly see theWrite markdown and see live HTML preview. Copy or download instantly. 2026 DevDannyD
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Weather Tracker Destinations
Track weather updates and important alerts at your destination.
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Codeanywhere
Cloud IDE · Online Code Editor · Codeanywhere - this extension enables opening Codeanywhere workspaces from Git provider sites.
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ThreadLite
Keep long ChatGPT and supported AI chats fast when pages start lagging, slowing down, or feeling heavy.
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Criply — Free File Tools
Quick access to free PDF, image, and document tools. Compress PDF, convert HEIC to JPG, generate invoices, QR codes, and more. No signup, no watermarks.
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Review Rooms
Collaborative website review tool for teams. Review and comment on any site with a toolbar overlay.
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Site Change Monitor
Keep an eye on web pages and be alerted the moment their content updates. Track a full page or just one CSS selector, choose how often to check, and open changed pages straight from the notification.
Custom Header Tailor
Override or add custom HTTP headers on requests and responses. Two lists (request/response), per-rule on/off toggle and optional URL match pattern. Rules are saved locally and persist across restarts. No data collection.
Steam Market Helper
Выбор предметов инвентаря Steam и выставление их на продажу по цене заявок стакана (buy/sell orders) торговой площадки.
Website Notification Aggregator
Aggregate all website notifications into one place for easy access and management.
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Codeforces Practice25 Tracker
Track your practice progress on Codeforces.
