Best Open Source Error Tracking Tools

Why Open Source Error Tracking?

Open source error tracking tools give you full control over your data, the ability to self-host, and freedom from vendor lock-in. For teams with strict compliance requirements or those who simply prefer owning their infrastructure, open source is a compelling choice.

That said, self-hosting comes with trade-offs: you are responsible for maintenance, scaling, and upgrades. Let's look at the best options available today.

Top Open Source Error Tracking Tools

1. Sentry (Self-Hosted)

Sentry is the gold standard for open source error tracking. The self-hosted version gives you the full Sentry experience on your own infrastructure. It supports 100+ platforms and has the most mature SDK ecosystem in the industry.

Pros:

• Extremely broad language and framework support
• Active community with frequent updates
• Performance monitoring included
• Well-documented self-hosting guide

Cons:

• Resource-heavy: requires PostgreSQL, Redis, Kafka, ClickHouse, and more
• Complex to set up and maintain
• Self-hosted version lags behind the SaaS product
• Minimum recommended: 16GB RAM, 4 CPU cores

2. GlitchTip

GlitchTip is a lightweight alternative to Sentry that is compatible with Sentry's SDKs. If you find Sentry's self-hosted setup too heavy, GlitchTip offers a simpler deployment with fewer dependencies.

Pros:

• Compatible with Sentry SDKs
• Much lighter resource requirements
• Simple Docker Compose setup
• Uptime monitoring included

Cons:

• Fewer features than full Sentry
• Smaller community
• No performance monitoring
• Limited grouping capabilities

3. Highlight.io

Highlight.io is a full-stack monitoring platform that is fully open source. It combines error tracking, session replay, logging, and tracing in a single tool.

Pros:

• Full-stack observability in one tool
• Session replay capability
• Modern, clean interface
• Active development

Cons:

• Relatively new project
• Resource-intensive for self-hosting
• Smaller ecosystem than Sentry

4. Errbit

Errbit is one of the oldest open source error catchers. It is compatible with Airbrake's API, making migration straightforward if you are coming from Airbrake.

Pros:

• Lightweight and simple
• Airbrake API compatible
• Easy to deploy on small servers

Cons:

• Dated interface
• Limited active development
• No modern features like AI analysis or session replay

5. Exceptionless

Exceptionless is a .NET-focused open source error tracking tool, though it supports other languages too.

Pros:

• Strong .NET support
• Event-based architecture
• Real-time notifications

Cons:

• Primarily .NET focused
• Smaller community
• Limited integrations

Self-Hosted vs. Managed: The Real Cost

Before committing to self-hosting, consider the total cost. A self-hosted Sentry instance typically requires a server costing $100-300/month, plus engineering time for maintenance. A managed service like Bugsly starts at $19/month with zero maintenance overhead.

For most teams under 50 engineers, a managed solution is more cost-effective when you factor in the engineering time spent on infrastructure. If compliance or data residency requirements mandate self-hosting, Sentry or GlitchTip are your best bets.

Recommendation

If you need self-hosting, start with GlitchTip for simplicity or Sentry for full features. If self-hosting is not a hard requirement, consider a managed tool like Bugsly that lets you focus on building your product instead of maintaining monitoring infrastructure.