- 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
- https://www.honeybadger.io/
- http://trackjs.com/
- https://getcoalmine.com/ [DEAD, Nov 8, 2013]
+- http://damnit.jupiterit.com/ [DEAD]