MyPassMan stores your passwords in an encrypted plain-text file.
There are many others like it, but this one is mine.

Getting Started

MyPassMan is written in Java and requires a Java runtime version 6.0 or newer to run. You can download Java from Sun Microsystems here. If you are not a programmer, then you should probably download the Java Runtime Environment (JRE) 6, otherwise download JDK 6.

Once you have a Java runtime installed on a Windows system, you should be able to simply double-click the mpm.jar file to run the program.

If that doesn't work, or on a UNIX system, you need to ensure that the Java runtime is in your PATH by typing

java -version

at a command prompt. If Java spits back a version string, then you can type

java -jar mpm-x.xx.jar

to get it running (where mpm-x.xx.jar is the name of the jar file you downloaded from SourceForge).