Cool open source projects

Question

This is a similar question to one posted earlier, but slightly different. I'm interested in what your favorite Open Source app is. I don't care if it's well coded or if it isn't active anymore, I just am interesteed in apps that work and do something useful. The internet is a big place, so with a few suggestions some of us may find a new favorite app.

Answer 1

Firefox, since it's the only app I use every single day.

Answer 2

Besides Minefield nightly? Probably Miranda IM. And Wordpress. And Drupal. And Adobe AIR SDK. And love/hate relationship with PostgreSQL.

Answer 3

3 apps I use everyday; Ubuntu, Firefox and Eclipse.

All easy to use and extensible.

Answer 4

Notepad++

Great for quick looks at code files without having to open an IDE for syntax highlighting.

Answer 5

Eclipse, Firefox, eXist-db

Answer 6

Adium / Pidgin Instant Messengers, Foxit PDF Reader, FileZilla FTP, Paint.NET aka Photoshop lite, SQLite SQL Database, too many to list here...

Answer 7

Like others have stated, way to many to list here but here is a sample of my favorites.

• Firefox
• Eclipse
• Paint.NET
• VLC
• Putty
• SharpDevelop

Not apps but still great open source components

• MONO
• FreeNAS
• Red5

And not open source but free

• RegEx Coach

Answer 8

I mentioned it in a similar thread, here. Google Chrome/chromium is a great project to learn from.

Answer 9

Some of my favorites would be Firefox, SciTE, Pidgin and GIMP

Answer 10

Eclipse, Firefox and PostgreSQL

About the latter, I am perpetually amazed at the maturity and sturdiness of PostgreSQL!

Answer 11

• Linux
• Firefox
• GIMP
• Wordpress
• jEdit

Drupal is a good study in plugin-type architecture ("hook" system).

Answer 12

FileZilla.

Answer 13

Ubuntu, Pidgin, Adium, Firefox, Inkscape.

Answer 14

GNU Screen is one of the most interesting and useful apps I've come across.

Answer 15

GNU Emacs, beyond doubt.

Answer 16

besides everything already mentioned, nginx is nice.

Answer 17

LLVM: http://llvm.org

Right now, this is the open source project with the most wide ranging impact on software development for years to come.

Answer 18

Ubuntu is the best open-source project in the history of open-source projects in my opinion.

Answer 19

NASA World Wind (Java). http://worldwind.arc.nasa.gov/java/ They also helped improve JOGL a lot (java Open GL) which is another good open source product.