| airbrake-js | 1.6.7 | Notify Airbrake on JavaScript exceptions |
| jsnlog | 2.30.0 | Simple logging package. Use on client and/or server. On the client, sends logs to the server and stores them in your existing server side logs. On the server, log to console or use Winston transports. Ideal for logging exceptions, AJAX timeouts. |
| keen-js | 6.0.0 | Keen IO JavaScript SDK |
| kronos.js | 0.7.2 | JavaScript client for Kronos |
| le_js | 0.0.3 | Javascript library for Logentries.com |
| loglevel | 1.9.1 | Minimal lightweight logging for JavaScript, adding reliable log level methods to any available console.log methods |
| logdown | 3.3.1 | Debug utility with markdown support that runs on browser and server |
| clockwork-browser | 1.1.2 | Clockwork client-side metrics collection and toolbar. |
| logtail-browser | 0.4.21 | Logtail browser logger by Better Stack |