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Error Tracking 2 alternatives tracked

Open-source alternatives to Sentry

Sentry is an application monitoring platform that captures exceptions, stack traces, and performance traces across 30+ language SDKs, grouping errors by fingerprint for triage workflows and alerting.

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The alternatives

sentry

★ 43,779 Python NOASSERTION

Developer-first error tracking and performance monitoring

getsentry/sentry Updated 2026-05-06

highlight

★ 9,252 TypeScript NOASSERTION

highlight.io: The open source, full-stack monitoring platform. Error monitoring, session replay, logging, distributed tracing, and more.

highlight/highlight Updated 2026-04-16

Comparison notes

Self-hosted Sentry is functionally identical to the cloud version but requires PostgreSQL, Redis, Kafka, ClickHouse, and at least 8GB RAM to run, making the managed service worth evaluating for teams without dedicated infrastructure capacity. Highlight is a modern alternative adding full session replay alongside error tracking, but its error grouping maturity and alerting configurability trail Sentry's years of investment. Neither alternative matches Sentry's SDK breadth across 30+ languages and framework-specific integrations.

Migration tips

  • Deploy self-hosted Sentry using the official sentry/self-hosted Docker Compose repository on a server with at least 8GB RAM and 20GB disk.
  • Update SDK DSN values from cloud Sentry endpoints to your self-hosted instance — no SDK code changes are required beyond the DSN string.
  • Configure automated cleanup cron jobs for PostgreSQL and ClickHouse to prevent disk exhaustion on high-volume event ingestion projects.

FAQ

Can I fully replace Sentry with an OSS tool?

Feature parity varies. Most OSS alternatives cover 70-90% of core workflows, but may lack polish, integrations, or specialized features. Pilot the alternative with a subset of your team before fully committing.

What's the cost of self-hosting?

Plan for ~$5-50/month in VPS costs (DigitalOcean, Hetzner, etc.) plus 2-8 hours/month in maintenance. For a team of 20+, self-hosting usually breaks even against SaaS pricing within 6-12 months.

Which alternative should I pick?

Sort by GitHub stars (a proxy for community health), check the last-pushed date (avoid unmaintained projects), and read recent issues to gauge responsiveness.