BigSearch
BigSearch offers a browser extension for using search engines through a flexible tool; its description says it runs client-side without a third-party server.
About BigSearch
BigSearch is an open-source browser extension and web app for flexible multi-engine web searching. It runs client-side with no required third-party server, and includes 60+ pre-built search engines such as Google, DuckDuckGo, YouTube, eBay and GitHub, plus support for user-created custom engines. The tool supports fully keyboard-only operation via a built-in Vimium-like UI feature, works with both standard GET/POST interfaces and in-page Ajax-render websites, and enables cross-engine searches or multiple operations via a single button. Users can edit engine configurations via a GUI or direct JSON editing for advanced customization; the web app version lacks full functionality compared to the browser extension, and features like search history saving and selected text search are unavailable in incognito mode.
Key features
- Client-side operation with no required third-party server
- 60+ pre-built search engines including Google, YouTube, GitHub
- Support for custom user-defined search engines
- Built-in Vimium-like keyboard-only UI navigation
- Works with GET/POST and in-page Ajax-render websites
- Cross-engine single-button search and multi-operation support
Best for: It is best for users seeking flexible, keyboard-accessible multi-engine searching for daily, work or entertainment use.
Good for
- Runs entirely client-side with no mandatory third-party server
- Supports both standard search interfaces and in-page Ajax-render websites
- Offers both GUI and JSON-based advanced customization for search engines
Watch out for
- Search history is not saved when using incognito mode
- The web app version lacks full functionality compared to the browser extension
- Selected text search does not work in Firefox incognito mode
BigSearch at a glance
- Category
- Software & Utilities › Browser Extensions
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Platforms
- Browser extension
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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BigSearch FAQ
What is an in-page Ajax-render website?
It refers to a website that does not offer a standard GET/POST interface for search queries.
Can I use search engines added to my browser with BigSearch?
Firefox users can use browser-installed search engines directly via the extension.
Is search history saved when using BigSearch?
Search history is saved locally, but not saved in incognito mode.
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