Papertrail vs Sentry

To set Papertrail up, use NXLog, or simply direct logs to a URL provided by Papertrail. No proprietary agent.

The default view is mostly taken up by log events with a small row at the bottom for entering a search query, setting date range, accessing saved searches and enabling or disabling real-time logging.

By default log events and searches in Papertrail are updated in real-time.

Logs can be colorized by installing Stylish, a browser extension for Chrome and Firefox that overrides CSS stylesheets, and writing a custom stylesheet.

Papertrail's log entries have various attributes that can be used to change css properties for specific programs or systems, or based on message contents.

Logs can also be colorized within the actual logs by adding ANSI escape codes (will override user-specific colorization).

It's what Sentry calls [Rollups](https://docs.sentry.io/learn/rollups/]. All individual issues rolled-up can still be drilled down. Also two issues can be merged manually.

Newly discovered issues (i.e. one that isn't rolled-up under and existing one) can generate an instant notification via many means.

Sentry has an official Docker image which means it's likely going to be well reviewed and maintained for a while and it makes it easy to set up.

Sentry is a completely open source tool. It's free to use if you want to run it on your own. If you want to avoid the overhead of running and maintaining another server, it also has a hosted version available at www.getsentry.com

Has support for source maps.

A single Sentry server can be used for various teams/products.