New Local-first retrieval · no API key

Lassov1

Stop digging through folders. Lasso retrieves the exact document, cell or passage you need and ties every value you write back to it.

Exact locations Pinned versions Nothing guessed
The exact fragmenta cell, a clause, a room, a figure
Every version pinnedlinks remember what they cited
No model, no API keyretrieval runs on your machine
Retrieval first

Stop sifting. Start finding.

Ask for the number, the clause or the figure. Lasso ranks every indexed document and takes you to the exact cell, passage or object it lives in, not just a file it might be in.

The exact locationCell D12, clause 12.3, IfcSpace Schlafzimmer. Not “somewhere in this PDF”.
The right versionDrafts and superseded files are ranked and labelled, so you don’t cite the wrong one.
No evidence, no answerIf nothing in your project supports it, Lasso says so instead of guessing.
Write with evidence

Autocomplete that shows its work

Suggestions come from your own project, not from a model. Right inside the suggestion box, Lasso previews the source (the floor plan, the sheet, the paper, the clause) so you can confirm it before you press Tab. Click any highlight later to check it again.

TabAccept ⌘↵Insert with local tracking ↑↓Another source ⇧⌘↵Share the reference ClickInspect a linked value EscDismiss

Example project · illustrative data

Review changes

When a source changes, you hear about it

Every linked value remembers the version it came from. When the file is updated, Lasso shows the old value, the new one, and every sentence that relied on it, then lets you update the wording or keep the historical version.

  • Changes are tracked through content-addressed snapshots
  • Review proposed wording before anything is rewritten
  • Indexing failures show up too, not just edits
Six keys, mostly one

Tab does almost everything

There’s no new interface to learn. Suggestions appear as you type and Tab accepts them. A handful of other keys cover everything else. Click a row to see it played.

Share what you cite

Reference it. They can open it.

Press ⇧⌘↵ on a suggestion and the reference becomes a link. Share the indexed part, the whole document, or a copy with the private details blacked out. No hunting for the file, no attaching, no redacting by hand.

Indexed partOnly the clause, cell or passage you cited, with enough context to read it.
Whole documentThe full file when they need it, with the original available to download.
Redacted copyRent, account numbers, names or signatures blacked out before anyone sees them.
In development

Lasso is learning to listen and travel

Someone in a call asks for “that file”, and the Lasso icon in your menu bar offers it, addressed to exactly the person who asked. A whiteboard photo from Tuesday turns up in Thursday’s email, found by what’s written on it.

Design previews of features in development, not shipping functionality.

Supported sources

From prose to polylines

Support varies by format and content. Files stay in history even when structured extraction isn’t available.

.mdProse
Markdown and plain textPassages, source-backed continuations and claims..md · .txt
.xlsxFigures
SpreadsheetsTables, rows, cells, values and variable definitions..xlsx · .csv · .tsv
.pdfDocuments
DOCX and PDFExtractable text and metadata; explicit drawing annotations..docx · .pdf
.bibCitations
Reference librariesAuthor, year, title, DOI and PMID metadata..bib · .ris · .nbib · EndNote
.ipynbCode
Code, JSON and notebooksCode locations, structured values and notebook cells..ipynb · .json · source
.ifcBIM
Building modelsElement quantities and typed properties, with entity identity and units..ifc
.dxfCAD · Civil
Drawings and site modelsPolyline areas and perimeters; parcel areas, alignments and pipes..dxf · .landxml
.jpgPhotos
Whiteboards and handwritingFound by what’s written on them.In development

Scanned PDFs need OCR first. DWG, RVT and DGN need an export to IFC, DXF or LandXML. Lasso does not infer missing quantities.

Meet the posse

Two small wranglers, one job

They catch the exact fragment you need and bring it back with its source attached. Click anywhere on the stage to toss them something.

Cowboy
Cowgirl
Brand characters · animation preview

Catch the value.
Keep the rope.

Download Lasso, choose “Index a project” and point it at a local folder.