Sourcegraph

Powerful, instant code search across all your code:

• Search in files and diffs using simple terms, regular expressions, and other filters.
• Syncs repositories with your code host and supports searching any commit/branch, with no indexing delay.

Enhanced code browsing with code intelligence: hovers, definitions, and references:

• Code intelligence makes browsing code easier, with IDE-like hovers, go-to-definition, and find-references on your code, powered by language servers based on the open-source Language Server Protocol.
• It even works in code review diffs on GitHub and Phabricator with our browser extensions.