Scattered files, one search.
Search inside your Word, Excel, and PowerPoint files. Stop digging through folders. Search by content, context, or filename.
"final_v3_revised_John.docx" — Sound familiar?
Document search is free forever. Premium features like email timeline and file-mail context linking are coming soon. Core search will always be free and continuously updated.
What makes it different
Things Windows Search and Everything can't do.
Search inside Office documents
Word, Excel, PowerPoint, PDF, and 13+ formats. Searches file contents, not just filenames.
Auto-group versions & revisions
Automatically clusters drafts, revisions, and final versions — even across different folders and filenames.
100% offline, zero data leakage
All AI runs locally on your PC. No network required. Works in air-gapped environments.
Built-in MCP server
Works as a local search engine for AI agents. Connect Claude, Cursor, or any MCP-compatible tool to search your files.
Built for people who
Supported Files
- Documents.docx, .pdf, .hwp, .hwpx
- Spreadsheets.xlsx, .xls, .csv
- Presentations.pptx
- Email.eml, .msg
- Text.txt, .md, .json, .log
System Requirements
- OSWindows 10/11 (x64)
- RAM8 GB minimum
- Storage~500 MB (with AI model)
- Runtime.NET 8 (bundled)
- NetworkNot required
Coming next
Coming SoonYour files didn't appear out of nowhere. We're building the full picture.
Email threads, attachments, local edits, replies — one timeline showing how your document actually evolved.
Join the beta test
You'll be first to know when beta is ready.
Help us improve
LocalSynapse is in early beta. Your feedback directly shapes what we build next. Report bugs, suggest features, or just tell us what you think.