- http://www.muscula.com/ - source maps, translate error messages to English
- https://www.airbrake.io/ - tracekit, source maps
- http://www.errorstack.com/
-- http://damnit.jupiterit.com/ [DEAD]
- https://www.proxino.com/
- http://jslogger.com/
-- http://rescuejs.com/ - source maps
-- http://qbaka.net/
+- http://qbaka.com/ - source maps
- http://www.bugsense.com/
- https://crashlog.io/
- http://www.exceptional.io/
- https://www.getsentry.com/ - source maps, tracekit
- http://raygun.io/ - tracekit
- https://bugsnag.com/ - source maps
-- https://errplane.com/
- https://rollbar.com/ - source maps
- http://jserror.net/
- http://www.geterrorzero.com/
- https://www.honeybadger.io/
- http://trackjs.com/
- https://getcoalmine.com/ [DEAD, Nov 8, 2013]
+- http://damnit.jupiterit.com/ [DEAD]
+- http://rescuejs.com/ [DEAD, acquired by Bugsnag]
+- https://errplane.com/ [DEAD, pivoted]