Kinovea is an open source project, licensed under the GPL version 2. You can help make it better in several ways (in no particular order) :

forum   Provide forum support
Share your knowledge of Kinovea on the forum by helping other users, or point to online documentation pages.

bugs   Reproduce bugs
Go to the bug tracker and locate the bugs highlighted in red.
Read the comments, try to reproduce the issue. Add more infos on how to reproduce, if it is only reproduced on a specific version, if you can’t reproduce, etc.

feature design   Participate in feature design
Threads will be posted on the forum to discuss how a particular feature should work. Your input and feedback is highly needed.

architecture design   Participate in architecture design
Discussions will be started on the development mailing list to design how a particular feature should be implemented.

code   Fix bugs / implement new features
Check out the source code and send some patches!

help   Improve the user manual
A special section on the wiki is exported to the user manual.
Read the instructions and start editing pages.

translate   Translate the interface into other languages
Threads will be posted on the forum when development is freezed and translations synchronized.

translate manual   Translate the user guide into other languages
The user manual section on the wiki has namespaces for some languages. You can edit pages directly from there.
Ask in the forum to have your language there if it’s not already.

links   Support the building blocks
Several other projects are the shoulders on which Kinovea stands. Each time you help one of these project, you also help Kinovea.