Try brat online
(username: "crunchy", password: "frog")
Runs in your browser: no installation required
Intuitive annotation visualization and editing.
Create your own local brat installation:Download v1.3
Manage your own annotation effort
Easy to set up: installation instructions
Open source (MIT License)
Current version: v1.3 Crunchy Frog (2012-11-08).
brat rapid annotation toolonline environment for collaborative text annotation