Code search tools

A list of all known standalone code search tools, both internal and publicly available, in (rough) order of creation.

• OpenGrok from Sun Microsystems (now Oracle)
• LXR
• Google CodeSearch
• Facebook TBGS (“The Big Grep Search”) a.k.a. BigGrep
• source navigator
• DXR
• Azure DevOps code search
• Hound from Etsy
• Livegrep (implementation blog post, another blog post)
• Searchcode
• Zoekt
• GitHub code search
• Google Cloud Source Repositories code search
• Sourcegraph (source code, architecture/design overview)
• grep.app
• mozsearch