Tipue is an open source JavaScript site search engine. It works with any browser that supports JavaScript 1.3 and at least partially supports the W3C DOM Level 1. Tipue is small and lightweight at less than 5Kb, platform independent and doesn't require any server-side technologies on your host.
Zoom is a package for web developers to easily add a powerful custom search engine to a website or CD-ROM. Fast search results are made possible by pre-indexing from the convenience of your own Windows computer. Features include: spider & offline indexing modes, wildcard searches, windows GUI indexer, logging & more. JavaScript, PHP, ASP search front-ends available.
A JavaScript site search engine. It works with any browser that supports JavaScript 1.3 and at least partially supports the W3C DOM Level 1. [Open source, GPL]