# Flow Tools

Flow Tools is a GPL-3.0-or-later local data-pipeline designer. It accepts pasted
or local JSON/CSV/NDJSON/XML and composes fixed select, rename, filter, map,
sort, group, join, type-format, deduplicate, slice and explode primitives. Every
stage has an inspectable snapshot, dataset analysis and explicit loss notes.
Recipes are deterministic validated JSON; there is no arbitrary code, eval,
plugin or network stage.

Limits: 2 MiB sources, 10,000 input rows, 20,000 expanded rows, 200 fields, 30
stages and 256 KiB recipe JSON. Simulation runs in a cancellable worker. Result
JSON/CSV, recipes and an inert pipeline SVG export explicitly. Run `npm ci`,
`npm run check`, `npm run test:browser`, then
`npm run package:release -- --force`.