open source
Pearltrees loves open source.
Pearltrees is built on open-source software - here are the projects we have released or contribute to. Also see our blog for more details.Want to work on stuff like this? Contact us.
Javascript
The popular Pearltrees Firefox Addon is licenced under GPL.
Python
contributions to s3cmd
Pearltrees is Cloud Based. We upgraded s3cmd to handle several million files.
Java
Pearltrees Bookmarklet and Chrome Addon (based on GWT).
ActionScript
Colorize easily any image.
Workaround for a famous bug related to Flash 10 + Wmode + Non-qwerty Keyboards.