Self-hosted Sentry alternative

Drop-in Sentry replacement.

Keep your SDKs. Change one line: the DSN. Your errors land in one small container you own.

01 · One line

Swap the DSN. Ship.

The official Sentry SDKs post to OpenFault as they are. No fork, no plugin, no wrapper.

sentry.client.config.ts

Sentry.init({
-  dsn: "https://[email protected]/56",
+  dsn: "https://[email protected]/1",
   tracesSampleRate: 0,
});

02 · Ingest

Same endpoints. Same tools. Your CI scripts keep working.

Envelopes: /envelope/ and /store/, DSN-authenticated. gzip, deflate, br and zstd bodies.
Source maps: sentry-cli sourcemaps upload and the Sentry bundler plugins, including @sentry/nextjs. Debug-ID bundles resolve minified frames to file, line and function.
Scrubbing: Passwords, tokens, cookies, keys and card numbers become [Filtered] before anything is written. IPs are dropped unless you opt in.
Rate limits: Responses carry X-Sentry-Rate-Limits, so SDKs stop sending tracing, replay and session data on their own. Over quota gets 429 with Retry-After, and SDKs back off.
Grouping: Keyed on stack shape, never line numbers. Custom fingerprints and {{ default }} work as in Sentry.

03 · What you get

A Rust binary and SQLite. No Redis, no Kafka, no Postgres, no ClickHouse.

04 · Compare

OpenFault numbers are design targets until the first release. A dash means we haven’t checked.

	OpenFault	Sentry self-hosted	Bugsink
Containers to run	1	10+	1
RAM	Under 100 MB (target)	16 GB + 16 GB swap minimum, 32 GB recommended	—
Runtime	Rust + SQLite	Python, Kafka, ClickHouse, Postgres, Redis	Python
Sentry SDK compatible	Yes	Yes	Yes
Source maps	Yes, via sentry-cli	Yes	Yes, via sentry-cli
Live updates and TV mode	Yes, SSE	—	—
MCP server	Built in, approval-gated	Separate server	—
iOS app	Widgets, push, QR pairing (TestFlight soon)	—	—
License	MIT	FSL-1.1-Apache-2.0	PolyForm Shield 1.0.0

05 · Not there yet

Honest list. These are gaps, not choices.

Not doing Tracing, session replay, profiling. On purpose. OpenFault tracks errors. That is the whole job.

Older uploads: Legacy release-name source maps and iOS dSYMs aren’t supported. Debug-ID bundles only.
Releases from CI: sentry-cli releases and deploys succeed but record nothing. Releases come from events.
History: No import. Keep Sentry read-only until you stop needing old issues.
Production: In active development. Run it next to Sentry before you switch Sentry off.

06 · Get started

One command, no config. Then paste the new DSN.

Start the container.

docker run -d -p 8080:8080 -v openfault:/data ghcr.io/openfault/openfault
Open http://localhost:8080. The setup wizard creates your admin account and first project.
Swap the project’s DSN into your Sentry SDK config. Deploy. Read the install guide →