O-browser

O-browser is a free web browser for Windows that goes beyond basic browsing. It's built for people who actually use their browser for work, research and multitasking, not just casual scrolling. Fast tabbed browsing with sidebar tabs Tabs, address bar, session restore, find in page, zoom. The basics are all here and they work well. Tabs can be pinned, reordered by dragging, and placed at the top of the window or in a vertical sidebar on the left or right side. If you've used sidebar tabs in Opera or Brave, this will feel familiar. Split screen browser for multitasking Open two websites next to each other in one window. Drag the divider to adjust the ratio. Useful for research, comparing products, writing while reading a reference, or keeping a video playing next to your work. Built-in PDF viewer and editor PDFs open directly inside the browser in a full viewer. You can annotate, highlight, sign and export documents without installing a separate PDF app. Works with links from the web, file downloads and local files. Always-on-top window pinning Pin the browser window so it stays above other apps. Good for dashboards, chat, documentation or anything you need visible while working in another program. Private browsing with PIN lock Incognito mode runs in a completely isolated session. There's also a PIN lock if you share your computer. Set a 4-digit code and optionally lock the browser every time it starts. Bookmark manager and download tracker Bookmarks go into folders with custom colors. Drag to reorder, use the bookmark bar for quick access. Downloads show progress and let you open files or jump to the folder. Lightweight browser, your settings Choose your search engine, minimize to system tray, launch on startup, set as default browser. The interface uses a dark theme with accent colors designed for comfortable extended use.