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Error trackingTop pick

Sentry

The standard for error tracking + performance + replays.

Visit SentryVerify on pricing page
Free tier

5k errors/mo, 50 replays/mo, 10k performance units/mo, 1 user

  • Single-seat free — adding teammates requires Team plan.
  • Quotas spread thin across products; tune `tracesSampleRate` low.
Alternatives

Drop-in alternatives

Solve a similar problem if you outgrow Sentry's free tier — or just want a second option in your back pocket.

GlitchTip

Sentry-compatible OSS error tracking — works with @sentry/* SDKs.

Cloud free: 1k events/mo; or self-host free

Error tracking2026-05

Highlight.io

OSS session replay + errors + logs in one tool.

500 sessions/mo, 1k errors/mo, 1 GB logs/mo

Error tracking2026-05
Used in

Curated stacks featuring Sentry

Last verified 2026-05 · free-tier numbers shift — confirm at the pricing page before relying on a quota for a launch decision.