It makes sure that your processes are dead.

npm install killer
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It makes sure that your processes are dead.



The following example uses killer to kill a child process after an hour.

var spawn = require('child_process').spawn,
    killer = require('killer');

var child = spawn('node', ['server.js']);
setTimeout(function () {
  // Ensure that the server is dead.
  killer(, function () {
    console.log('Child process killed');
}, 60 * 60 * 1000);

killer(options, callback)


If options is a string or a number, it's assumed to be the PID. Defaults are used for all other options.

  • pid - PID of the process to kill
  • interval - How often to check if process is still alive (default: 1000). Setting to false disables polling.
  • killSignal - which signal to use to kill the process (default: SIGKILL)
  • termSignal - which signal to use to terminate the process after timeout (default: SIGTERM)
  • timeout - when to send termSignal to the process (default: 10000).


Called when process is dead.

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