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Monitoring

Free Sentry.io alternatives

Sentry.io (Error tracking and performance monitoring for developers) is a commercial product. These 2 tools do the same job and are free to use or to self-host.
Short answer: the best free alternatives to Sentry.io are GlitchTip and SigNoz. Sentry.io starts at $26/mo (Team). Self-hosting is free; you pay only for the server (a small VPS is about $4–6/mo). Licenses and prices checked 2026-10-01.
  1. 1
    GlitchTip

    Open-source error tracking compatible with Sentry SDKs

    Error tracking that accepts Sentry SDKs.

    Open source (MIT) ·details

  2. 2
    SigNoz

    Open-source observability: traces, metrics and logs on OpenTelemetry

    Exceptions alongside traces and logs.

    Open source (MIT (core)) ·details

Want paid options too? See all Sentry.io alternatives or the full free alternatives list.

FAQ

Is there a free alternative to Sentry.io?+

Yes. GlitchTip and SigNoz do the same job for free; GlitchTip and SigNoz are open source.

What is the best open-source alternative to Sentry.io?+

GlitchTip and SigNoz are open source. GlitchTip: Error tracking that accepts Sentry SDKs.

Open source: OSI-approved license. Free to self-host: the code is public and free to run yourself, with limits in the license.