About

OpenTripPlanner is an open source, multi-modal trip planner released under the LGPL. It's collaboratively developed by a team of developers from across the world and coordinated by OpenPlans and TriMet. It's free software, written in Java, and anyone is welcome to use and improve it.

See the frequently asked questions for more information.

Associated and contributing projects

The OpenTripPlanner project aims to collaborate with the following open source transit and routing projects, among others:

• FivePoints

• code | development wiki | mailing list | demo | architectural diagram

• Graphserver

• code | mailing list | demo, architectural diagram

• One Bus Away

• code | wiki | blog, demo | architectural diagram | description

• byCycle

• code | wiki | blog, demo

• TriMet's existing trip planner

• live site | architectural diagram