We built Sourcegraph taking inspiration from Google Code Search (https://about.sourcegraph.com/blog/ex-googler-guide-dev-tool...) to bring the power of code search—and precise code intelligence that just works—to every dev. Try it out here: https://sourcegraph.com. A super common thing we see is people leaving Google, missing code search, and then bringing Sourcegraph into their new org. We'd love to hear your feedback!
The best thing about the Sourcegraph instance hosted on sourcegraph.com is that you can edit the URL in your browser from https://github.com/foo/bar to https://sourcegraph.com/github.com/foo/bar to be dropped down into a Sourcegraph search for that GH repo. I've been using it for a long time because of this convenience.
(Though it would be even better if the two options for case-sensitivity and regex search were enabled by default instead of needing me to toggle them on every time.)
You should be able to do that over in your User Settings (Click your picture in the top right and then Settings.) Adding these two things should change that default for you:
Sourcegraph is open-core, with a dual licensing approach. You can run the open-source version here: https://github.com/sourcegraph/sourcegraph#sourcegraph-oss, and we have an enterprise offering for companies that want to adopt for their teams. Similar to GitLab, both our enterprise and OSS code is publicly available.
(Though it would be even better if the two options for case-sensitivity and regex search were enabled by default instead of needing me to toggle them on every time.)