Bugsnag vs Exceptionless
Bugsnag and Exceptionless are both error tracking software. Bugsnag is a commercial product from SmartBear Software. Exceptionless is open source under Apache-2.0, with 2.5k GitHub stars.
Which to pick
- Pick Bugsnag when
- Mobile app teams that care about crash-free session rates per release and want an established hosted tool.
- Pick Exceptionless when
- Your apps are mainly .NET and you want error tracking with first-class .NET integration.
Side by side
Reports errors and crashes from web and mobile apps, groups them, and tracks app stability scores per release.
An error, log and feature-usage reporting service with strong .NET client support, self-hostable or hosted.
Owned by SmartBear, so the roadmap follows a larger tools portfolio; pricing rises with event volume.
Self-hosting needs Elasticsearch, and the community is smaller than Sentry's.
Production-ready (both)
Cloud service
Self-hosted server and cloud service
Not published
C#, .NET, Svelte and Elasticsearch
Closed source, sold by SmartBear Software
Open source, Apache-2.0 (permissive)
Closed source: you use it under the maker's terms and cannot change or resell the code.
You can build it into a product you sell, as long as you keep its copyright notice.
No Wikipedia article of its own
2.5k GitHub stars
Not known
Established: started 12 years ago, latest release v8.10.0.
Other comparisons
More error tracking tools
Both sides were judged on 2026-11-03 from makers' descriptions, Wikipedia, READMEs and GitHub data. License, age and popularity lines are worked out directly.