Comby vs Sourcebot

Comby is a free, open-source tool for searching and changing code structure with lightweight templates. It recognizes basic syntax in code, strings, and comments across many languages, with parsers listed for C/C++, C#, Go, Java, JavaScript, Python, Rust, Swift, and TypeScript, plus a generic matcher for other formats. The project targets large refactors and one-off changes, and an interactive review mode lets users inspect proposed edits. Comby can run from its command line, Python bindings, or HTTP requests sent to a server on your machine. Installation instructions cover macOS with Homebrew, Ubuntu, Windows through Ubuntu on WSL, and Docker; building from source is also described. Linked projects include an Emacs package and a prototype VS Code extension. Other uses include structural code search, compiler fuzzing, test-case reduction, editor find and replace, and academic research. Comby matches balanced delimiters while accounting for comments and string literals, and supports regex search. It is self-hosted and available for API, Linux, macOS, and Windows use. The Apache-2.0 license is identified in the public repository.

Sourcebot is a self-hosted tool for searching, navigating, and understanding complex enterprise codebases. Search covers repositories and branches, with regular expressions, filters, boolean logic, and suggestions. Symbol navigation includes go to definition and find references. Its MCP server gives coding agents tools to search code, read files, and resolve symbols across an organization's repositories.

Supported code hosts include GitHub, GitLab, Bitbucket, Azure DevOps, Gerrit, and Gitea, both cloud and self-managed. Ask Sourcebot connectors communicate over MCP and use the connected user's permission boundaries; documented examples include Linear and Jira. Ask Sourcebot requires at least one language model provider configured, with documented providers including OpenAI, Anthropic, Bedrock, Vertex, and Mistral. Sourcebot runs as a single Docker container on customer infrastructure, on-premises or in the cloud. The company says code, indexes, queries, and AI inputs and outputs remain within the customer's environment. Basic is free; Pro costs $20 a month billed per user and includes a 14-day free trial.