Most "Sentry alternatives" lists rank tools by feature count. That is the wrong axis. The question that decides your weekend is narrower: does it speak Sentry's protocol?
Which Sentry alternatives work with the Sentry SDK?
If a tool implements Sentry's ingest endpoint, migration is a one-line change to the DSN and your instrumentation stays exactly as it is. If it does not, you are removing one SDK and adding another across every service you own, then re-testing the error paths you hope never run.
| Tool | Sentry SDK works | Self-hostable | AI fix agent |
|---|---|---|---|
| Parsemend | Yes | Yes | Yes, four ways |
| GlitchTip | Yes | Yes | No |
| Sentry (self-hosted) | Yes | Yes | No (Seer is cloud-only) |
| Bugsnag | No | No | No |
| Rollbar | No | No | No |
| Honeybadger | No | No | No |
Everything below follows from that first column.
GlitchTip
The most honest option if what you want is Sentry-without-Sentry. GlitchTip is open source, implements the ingest protocol, and deliberately stops at errors and uptime. It has no AI features and does not pretend to. If your objection to Sentry is the price or the telemetry, GlitchTip answers it completely.
Self-hosted Sentry
The whole product, on your hardware, for free. The cost is operational: it is a large distributed system, and you will be the person who understands why Kafka is behind. Note that Seer, Sentry's AI agent, is not available in the self-hosted distribution — the thing most people now want is the thing self-hosting does not give you.
Bugsnag, Rollbar, Honeybadger
Mature, competent error trackers with their own SDKs and their own opinions. Each is a fine product. Each also means reinstrumenting your application, which is why teams rarely move between them without another reason.
Parsemend
Parsemend implements the same envelope endpoint, so the official Sentry SDKs work against it unchanged — we have verified this with the PHP and Node SDKs. The reason to pick it is not the tracker. It is that an agent reads the stack trace, states a root cause, and opens a draft pull request, and that you decide where that agent runs: on your own servers, from your own laptop, against a model you chose, without giving anyone access to your repository.
The honest limitation: Parsemend has no tracing, no session replay and no profiling. If you use those, this list has better entries than us, and the full comparison says so in more detail.
How to choose
- You want to stop paying and keep the SDK → GlitchTip.
- You want everything Sentry does and will operate it → self-hosted Sentry.
- You want errors to arrive as pull requests, on your terms → Parsemend.
- You are already happy → stay where you are. Migrating error tracking to save $30 a month is not a good use of an engineer.