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One-Click Image Saver
🧩 More extensionsA browser extension to save images with one click.
Oneko Neko
🧩 More extensionsCharming "Oneko Neko" playfully trails your cursor!
OnePageCRM Lead Clipper
🧩 More extensionsCapture leads from any webpage in just one click!
One Piece 23 - 1080p
🧩 More extensionsOptimized For Google Chrome in the above display size with the start menu in auto hide mode. Please note: The theme will not be…
OneT&E
⚡ ProductivityOneT&E
Onion Simulator
🧩 More extensions2D physics game, protect the onion using one piece of string.
Online Text Editor Like Notepad & Wordpad
🧩 More extensionsBest and free online text editor like notepad, wordpad and word editor to write your text while browsing multiple tabs on web.
Online Timer
🧑💻 Developer ToolsSet this online Countdown Timer for cooking or any purpose. 100% FREE to use online
OnPageSEO.ai SEO Chrome Extension with Ai & Best SEO Tools
🧑💻 Developer ToolsOnPageSEO.ai SEO Chrome Extension with Ai, Chosen by Best Rated SEO Companies! Optimize with the Best SEO Tools to elevate your…
OpenArticle - Bypass Medium Paywalls
🧩 More extensionsOne-click access to full articles in a beautiful, distraction-free reader with automatic dark mode support.
Open Browser Use
⚡ ProductivityOpen Browser Use Chrome automation extension.
OpenClaw Browser Relay
🧑💻 Developer ToolsAttach OpenClaw to your existing Chrome tab via a local CDP relay server.
Open in Popup Window
🧩 More extensionsOpen any links and images in a popup window
Open in Sidebar
🧩 More extensionsDrop any link to the sidebar for dual-pane access
Open Prompt Manager - for AI Agents & Assistants
⚡ ProductivitySave, organize and reuse your best AI prompts across ChatGPT, Claude, Gemini, Grok and more. Free and open source.
Open Slack in Browser, not App
🧩 More extensionsOpen Slack in Browser, not App
Optimize Next
🧑💻 Developer Toolsby PROJECT GROUP Inc.
Order History Exporter for Amazon
⚡ ProductivityExport your Amazon order history as JSON or CSV files
osu! koko
🧩 More extensionsosu! koko download beatmaps automatically! (Now working in old site!)
OTPBro
🛡️ Privacy & SecurityOTPBro - Authenticator generates two-factor authentication codes in your browser.
Our Mouse Gesture
⚡ ProductivityThis is Mouse Gesture Extension. This has 31 gesture functions and "Mouse wheel" action and "Rocker Gesture" function.
Overleaf Copilot
⚡ ProductivitySeamlessly incorporate ChatGPT to power and accelerate academic writing in Overleaf.
Overload Search - Advanced Google Search Operators & Filters
⚡ ProductivityBuild advanced Google searches fast: site:, filetype:, date range, multi-country filters — no search operators to remember.
oVice Helper
⚡ Productivityバーチャルオフィスツール oVice のリアクション機能を拡張できる拡張機能です。オリジナルのリアクション機能に加え、任意のテキストや画像をフキダシで表示できます。Chrome / Edge で動作確認済です。