oidgen
This simple tool can generate OIDs on the command line or you can use it to generate OIDs in your code.
Usage
On the command line:
$ npm install -g oidgen
$ oidgen
2.25.267664259272996019649272401465428726064
In your code:
$ npm install oidgen --save
var oidgen = ; console;// 2.25.267664259272996019649272401465428726064 console;// 2.25.329800735698586629295641978511506172918