Sentry alternatives: 5 open-source picks
These 5 Sentry alternatives replace it for $0, led by Exceptionless, GlitchTip and Uptime Kuma. All 5 are open source. License, stars and last commit checked by hand on 2026-08-29. No trials, no crippled tiers.
A mature error tracker with a strong .NET accent and a real server to maintain.
licenseApache-2.0
runsyour machine or their cloud
installHosted signup, or Docker Compose/all-in-one image; Kubernetes is recommended for production
dataHosted events live in Exceptionless's service; self-hosted events and indexes live in Elasticsearch, with Redis used for queues/cache and configurable storage providers for files
the catch vs SentryIt is strongest for .NET and general event logging, with a smaller SDK/integration ecosystem and less sophisticated frontend tracing, replay and profiling than Sentry.
setupThe first production obstacle is operating Elasticsearch and Redis with durable storage, backups, migrations, SMTP and TLS rather than merely starting the demo container
facts verified 2026-08-11
Sentry's SDK protocol with fewer moving parts and fewer debugging toys.
licenseMIT
runsyour machine or their cloud
installHosted signup, or Docker Compose with PostgreSQL; Helm and managed one-click hosts are also documented
dataHosted events live in GlitchTip's US or EU service; self-hosted issue and event data live primarily in PostgreSQL, with persistent file/object storage used for uploads such as source maps
the catch vs SentryIt covers errors and basic performance monitoring but has fewer mature debugging controls, integrations, session-replay capabilities and high-scale operational tooling than Sentry.
setupSelf-hosting starts with Docker plus PostgreSQL 14+, environment secrets and a reverse proxy/TLS; email and optional Valkey add more configuration
facts verified 2026-08-11
Self-hosted uptime monitor with status pages, 90+ notification channels, and a slick dashboard
licenseMIT
runsyour server
setupnot verified by us yet — check the repo README
facts verified 2026-08-29
The de-facto open dashboarding platform — visualize metrics, logs, and traces from any source.
licenseAGPL-3.0
runsyour server
setupnot verified by us yet — check the repo README
facts verified 2026-08-29
Dead-simple cron job monitoring — get pinged when your scheduled tasks silently stop running.
licenseBSD-3-Clause
runsyour server
setupnot verified by us yet — check the repo README
facts verified 2026-08-29
What each one is, in full: GlitchTip · Uptime Kuma · Grafana · Healthchecks
last updated 2026-08-29 · no votes, no pay-to-list · just what's real
the usual suspects · recommended everywhere, rejected here
Self-hosted SentryThe famous bundle is FSL source-available, not open source, and it is an operational small city.
Uptime KumaA good uptime monitor, not an error-event collector with grouping, releases and stack traces.
how to choose a Sentry alternative
Easiest to get running
Uptime Kuma — a one-click install, no server to maintain.
Most proven
Uptime Kuma, with 68,000 GitHub stars — the largest community of the 5, which usually means more answers when something breaks.
Needs real ops to self-host
Exceptionless and GlitchTip are capable but expect someone to run a server, updates and backups. Budget for that before choosing one.
what you give up by leaving Sentry
- SDK ecosystem, grouping models, tracing, replay, global ingestion, and enterprise operations
- global probe network
- phone and SMS delivery
- massive retention
- advanced incident response and support
None of the picks above covers all of it. The full verdict says which gaps matter.
Sentry alternatives at a glance
| tool | license | running it | platforms | stars | active |
|---|---|---|---|---|---|
| Exceptionless | Apache-2.0 | self-host, real ops | web, self-hosted | 2,452 | 2026-08 |
| GlitchTip | MIT | self-host, real ops | web, self-hosted | 356 | 2026-07 |
| Uptime Kuma | MIT | one-click install | self-hosted, web | 68,000 | 2026-08 |
| Grafana | AGPL-3.0 | docker to self-host | self-hosted, web | 65,000 | 2026-08 |
| Healthchecks | BSD-3-Clause | one-click install | self-hosted, web | 8,000 | 2026-08 |
why people still pay for Sentry
People still pay for Sentry because monitoring must continue working during the exact outage it reports, which makes independent infrastructure and alert delivery the real product. The recurring cost buys probe geography, clocks, retries, deduplication, sampling, storage, paging, notification delivery, on-call rules, and its own uptime, not just the visible interface.
questions about switching from Sentry
Is there an open-source alternative to Sentry?
Yes: Exceptionless, GlitchTip, Uptime Kuma and 2 more. Every tool on this page is open source: no trials, no crippled tiers.
Can open source really replace Sentry?
Our verdict is YES. Uptime Kuma (68k stars), Grafana (65k stars), Healthchecks (8k stars) are mature open-source replacements for Sentry — self-host in one command and stop paying. The full verdict, and what you give up by switching, is at caniopensourceit.online/sentry.
What is the easiest open-source Sentry alternative to set up?
Uptime Kuma — a one-click install, no server to maintain.
What is the most popular open-source Sentry alternative?
By GitHub stars, Uptime Kuma (68,000). Grafana is next with 65,000.
