Whiteboard vs jevgrep vs sem
Side by side, from each listing’s own data. A row where every column says the same is shown once, dimmed.
 Whiteboardby /dev/fastRemove Whiteboard from this comparison |  jevgrepby David ZhangRemove jevgrep from this comparison |  semby Ataraxy LabsRemove sem from this comparison | |
|---|---|---|---|
| Sets it apart |
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| What it is | Gives coding agents like Claude Code and Codex a desktop canvas to draw code reviews, diagrams, and decision logs linked to the code, via a local CLI and MCP server. | Finds the files and source excerpts relevant to a plain-language question about a repository, giving coding agents a starting point before they edit. | Shows Git changes as entity-level diffs of functions, classes, and methods, with impact analysis, entity history, and an MCP server, for developers and coding agents reviewing code. |
| Provider | /dev/fast | David Zhang | Ataraxy Labs |
| Official vendor | Not an official listingSame for all | ||
| Verified | YesSame for all | ||
| Access | MCP, CLI | CLI | MCP, CLI |
| Auth | None | API Key | None |
| MCP server | In its setup guide | No MCP server | In its setup guide |
| CLI install | In its docsSame for all | ||
| Skills | Review Authoring, Scratchpad Diagrams, Trace Archaeology, Semantic Diff Viewer | Code Relevance Search, Agent Skill Install, Search Scope Preview | Entity-Level Diff, Impact Analysis, Entity History and Blame, Entity Search |
| Streaming | NoSame for all | ||
| Push notifications | NoSame for all | ||
| Categories | Code & DevToolsSame for all | ||
| Tags | code-review, diagrams, desktop-app, local-mcp, claude-code, codex, agent-traces, open-source | code-search, semantic-search, context-retrieval, codebase-navigation, cli, npm, swe-bench | semantic-diff, git, tree-sitter, code-review, impact-analysis, rust-cli, mcp-server |
| Listed since | Sep 25, 2026 | Oct 17, 2026 | Oct 10, 2026 |
| Use it now | |||
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