Search inside every document on your computer. By content. By context. Not just filenames.
Your email is only used for product updates and will never be shared.
v2.4.3 · Free forever · No login required · Apache 2.0
Features
Everything Search finds filenames. LocalSynapse finds the answer inside your files.
Word, Excel, PowerPoint, PDF, HWP, EML, MSG and more. Search by what's inside, not the filename.
Drafts, revisions, and finals clustered automatically — even across different folders.
All AI runs locally on your CPU via ONNX. No network. No upload. Works in air-gapped environments.
Privacy firstAI agents like Claude and Cursor can search your files. Same app, one command.
MCPDouble-click for search UI. Run for MCP server. Same binary, two modes.LocalSynapse mcp
Roadmap
Your files didn't appear out of nowhere. We're building the full picture.
Full-text, semantic, and hybrid search across 13+ formats. Auto version grouping. Click boosting. Porter stemmer.
Built-in MCP server for Claude, Cursor, and any MCP-compatible AI agent. Auto-config for Claude Desktop.
Same Avalonia UI codebase running natively on macOS. .app bundle + .dmg installer.
See how your documents evolved: email threads, attachments, local edits — one unified timeline.
Search inside emails alongside files. Context linking between email conversations and local documents.
Updates
Continuously improving.
View all releases →Your feedback directly shapes what we build next.
Free, offline, no account needed. Just install and search.
Apache 2.0 · Open source on GitHub