# GTFS Tools

> Open-source tools to explore, fix and publish GTFS transit feeds. GTFS Viz is the app you use, the GTFS Tools CLI does the same from a terminal or an AI agent, and GTFS DuckDB is the engine inside both that any DuckDB can load.

## Docs

- [Full docs](/docs/llms-full.txt): every page and release in one file
- [Overview](/docs/index.md): goals and parts

## GTFS Viz

- [Overview](/docs/gtfs-viz.md): what GTFS Viz does
- [How it works](/docs/gtfs-viz/how-it-works.md): One dataset, two ways in: the web app and the GTFS Tools CLI's dashboard.
- [Web app](/docs/gtfs-viz/web.md): Open a feed in the browser and review stations, routes and trips on maps and tables.

## GTFS Tools CLI

- [Overview](/docs/gtfs-tools.md): what GTFS Tools CLI does
- [CLI](/docs/gtfs-tools/cli.md): Import a feed once, then query, edit and export from a terminal or open the dashboard on it.
- [Releases](/docs/gtfs-tools/releases.md): every release, each with its own file

## GTFS DuckDB

- [Overview](/docs/gtfs-duckdb.md): what GTFS DuckDB does
- [Usage](/docs/gtfs-duckdb/usage.md): What the extension does, how to load it and the dataset lifecycle.
- [Functions](/docs/gtfs-duckdb/functions.md): Every function for working with GTFS data, in five groups, each with an example that runs on the MBTA subway feed.
  - [Import](/docs/gtfs-duckdb/functions/import.md): Load a GTFS feed and manage the dataset built from it.
  - [Table functions](/docs/gtfs-duckdb/functions/tables.md): Whole-feed tables: one row per station, stop, route, trip or service.
  - [GTFS functions](/docs/gtfs-duckdb/functions/gtfs.md): Look up one station, pathway network, route or trip.
  - [Helpers](/docs/gtfs-duckdb/functions/helpers.md): Scalar functions for any SQL expression: GTFS times and codes to readable values.
  - [For fun](/docs/gtfs-duckdb/functions/for-fun.md): Turn a day's schedule into music: a note for every stop and every departure.
- [Releases](/docs/gtfs-duckdb/releases.md): every release, each with its own file

## Agent skill

- [Agent skill](/docs/agent-skill.md): The `gtfs-tools` agent skill teaches an AI agent to drive the GTFS Tools CLI. Here is what it covers, by category.

## Roadmap

- [Upcoming features](/docs/upcoming.md): features planned for future releases

## Releases

- [GTFS DuckDB v1.0.2](/docs/gtfs-duckdb/releases/v1.0.2.md): Community extension
- [GTFS DuckDB v1.0.1](/docs/gtfs-duckdb/releases/v1.0.1.md): Sonification
- [GTFS DuckDB v1.0.0](/docs/gtfs-duckdb/releases/v1.0.0.md): First release
- [GTFS Tools CLI v1.5.5](/docs/gtfs-tools/releases/v1.5.5.md): Only gtfs-tools
- [GTFS Tools CLI v1.5.4](/docs/gtfs-tools/releases/v1.5.4.md): Remote imports
- [GTFS Tools CLI v1.5.3](/docs/gtfs-tools/releases/v1.5.3.md): Route bands
- [GTFS Tools CLI v1.5.2](/docs/gtfs-tools/releases/v1.5.2.md): Reroute deep links
- [GTFS Tools CLI v1.5.1](/docs/gtfs-tools/releases/v1.5.1.md): Trip and calendar editing
- [GTFS Tools CLI v1.5.0](/docs/gtfs-tools/releases/v1.5.0.md): Trips, calendars and shapes
- [GTFS Tools CLI v1.4.0](/docs/gtfs-tools/releases/v1.4.0.md): Routes commands
- [GTFS Tools CLI v1.3.2](/docs/gtfs-tools/releases/v1.3.2.md): DuckDB errors
- [GTFS Tools CLI v1.3.1](/docs/gtfs-tools/releases/v1.3.1.md): GTFS DuckDB extension
- [GTFS Tools CLI v1.3.0](/docs/gtfs-tools/releases/v1.3.0.md): First release