Best Free Error Tracking Tools

Exception, uptime, and cron monitoring. Developer plan (free): 5,000 errors/month, 1 user, 50 MB/day logging, 1 uptime monitor, 1 status page, 1 dashboard, unlimited projects, 15-day error data retention, 7-day log retention. Intended for low-traffic projects. Best for unlimited usage needs.

10 uptime monitors, 3 GB logs (3-day retention), 100K exceptions/mo, 5K session replays, 30 GB metrics, 1 status page, 1 responder

Listed in Monitoring, and on this page because we labelled it error_tracking. We read that on 2026-09-01 from https://betterstack.com/pricing, where it says: “AI‑native error tracking built on Better Stack”. How we use this

Mobile app monitoring. Free for small teams with up to 1 million user sessions per year. Best for startups.

Superseded: As of 2026-09-01, catchjs.com reads: There is a free tier with limits of 1,000 logged errors per month, 1,000 log API calls per month, performance metrics for 100 URLs, time on page for 100 URLs, and pageviews for 10,000 URLs. It includes email notifications, screenshots, click trails, and support for one domain and its subdomains. We are not publishing our stored CatchJS.com terms beside it — our own pricing change record, discovered 2026-09-01, names them as the previous ones. Read what we recorded ↓ Note — discovered 2026-09-01: The free tier now has limits: 1,000 logged errors per month, 1,000 log API calls per month, performance metrics for 100 URLs, time on page for 100 URLs, and pageviews for 10,000 URLs. It also includes email notifications, screenshots, click trails, and support for one domain and its subdomains. Source ↗

Open-source error tracking — 1,000 events/month, unlimited projects and team members, Sentry SDK-compatible. Also includes uptime monitoring. Self-hostable for unlimited Best for unlimited usage needs.

Developer friendly bug reports in one click. Free plan with unlimited jams. Best for unlimited usage needs.

Application monitoring (APM, errors, logging) — free plan: 50,000 requests/month, 1 GB logging/month, 5-day data retention, unlimited apps and hosts. Extended free limits for OSS and humanitarian projects Best for open source projects and unlimited usage needs.

Listed in Monitoring, and on this page because we labelled it error_tracking. We read that on 2026-09-01 from https://www.appsignal.com/plans, where it says: “help your codebase grow from your first error to your second database cluster”. How we use this

Real-time error, feature, and log reporting. Free plan: 3,000 events/month, 1 project, 1 user, 3-day retention. Also fully open source (Apache 2.0) for self-hosted unlimited use Best for open source projects and unlimited usage needs.

Developer tier: 1 user, 5K errors/month, 5M spans/month, 50 session replays, 5GB application logs, 1GB attachments

Listed in Monitoring, and on this page because we labelled it error_tracking. We read that on 2026-09-01 from https://sentry.io/pricing/, where it says: “Errors 50K $0.00”. How we use this

Cloud device observability and debugging platform. 100 devices free for [Nordic](https://app.memfault.com/register-nordic), [NXP](https://app.memfault.com/register-nxp), and [Laird](https://app.memfault.com/register-laird) devices.

Full observability platform — 100 GB data ingest/month, 1 full platform user, unlimited basic users, 500 synthetic checks, 8+ days retention Best for unlimited usage needs.

Listed in Monitoring, and on this page because we labelled it error_tracking. We read that on 2026-09-01 from https://newrelic.com/pricing, where it says: “Core users—starting at $49 per user— can access everything basic users can plus telemetry data in their IDE via the New Relic CodeStream integration, error tracking, logs, and more.”. How we use this

Error tracking with 5,000 occurrences/month, 30-day data retention, 1,000 session replays. Processing stops at limit (no surprise charges)

A complete Real-Time monitoring dashboard in less than one minute with a free forever tier.

Listed in Monitoring, and on this page because we labelled it error_tracking. We read that on 2026-09-01 from https://www.inspector.dev, where it says: “Never be the last to know your app broke”. How we use this

Error monitoring — 7,500 events/month and 1M spans/month on free plan, 1 user, unlimited projects, 7-day data retention. 14-day free trial of paid features available. Rebranded as SmartBear Insight Hub Best for unlimited usage needs.

Error-tracking with Sentry-SDK compatability. Free for up to 5,000 errors/month, or unlimited use when self-hosted. Best for unlimited usage needs.

Free all-in-one kill switch for your mobile apps.

Superseded: As of 2026-09-01, whitespace.dev reads: The Personal plan is $0/month and includes unlimited recordings that are never deleted, time travel (60 second limit), public recordings, and basic privacy filters. It does not include team members or projects. We are not publishing our stored Whitespace terms beside it — our own pricing change record, discovered 2026-09-01, names them as the previous ones. Read what we recorded ↓ Note — discovered 2026-09-01: The free tier now has limitations on team members and projects. It also includes a 60-second recording limit. Source ↗