Pick a SigNoz replacement by where you want your telemetry to live and who you trust to keep the product going. Self-hostable open source projects keep data on your own servers, hosted OpenTelemetry-native services run it for you, and one large search-led suite suits teams already on that stack. Read ownership news before you commit.
HyperDX's own site announces that ClickHouse has acquired it, Dash0's site announces that it has acquired Polar Signals, and highlight.io's old domain now lands on LaunchDarkly, which is why it isn't a row here. Ownership is moving fast in this corner of observability, so the shortlist comes first and the news worth reading follows it.
Eight observability tools at a glance
| Tool | Free option | Group on this page |
|---|---|---|
| Better Stack | Not stated | Hosted, OpenTelemetry-native |
| Coroot | Not stated | Open source or self-hostable |
| Dash0 | Free trial | Hosted, OpenTelemetry-native |
| Elastic Observability | Free trial | Search-led suite |
| HyperDX | Free, open source | Open source or self-hostable |
| Last9 | Not stated | Hosted, OpenTelemetry-native |
| OpenObserve | Free, open source | Open source or self-hostable |
| Uptrace | Free trial | Open source or self-hostable |
Why ownership news matters before you switch
Most of the eight describe themselves as OpenTelemetry-native or open source, and that helps when you're choosing. You can point one collector at two candidates and compare the same bad day on both before anyone signs anything.
None of that makes a small vendor a bad bet. It does mean the homepage you read today could carry a new logo before your contract renews. Before you move production telemetry, read each vendor's news line, check whose name sits in the footer, and ask where the roadmap is heading. If an open source project has a new parent company, look at whether the licence and the self-hosted edition are still described the same way on its own site. Keep your export path in mind too, in case the hosted and open source editions drift apart.
If you want the wider view of application monitoring, my guide to APM tools covers the bigger suites, and the New Relic alternatives list overlaps with some of the hosted names here.
Self-hosted, hosted, or one big suite
Open source or self-hostable. Uptrace says it offers both a self-hosted edition and a cloud service, built on ClickHouse. OpenObserve says it's written in Rust on a columnar storage engine. Coroot takes a different route: it says it uses eBPF to collect signals without code changes, which is worth a look if instrumenting every service by hand isn't realistic for your team.
Hosted and OpenTelemetry-native. Last9 describes itself as a hosted platform, so there's no cluster for you to run. Better Stack lists error tracking next to logs, metrics and traces. If your dashboards and queries already use PromQL, ask each hosted vendor how it handles them before you move.
A search-led suite. Elastic Observability is the one large vendor here. It sits on the Elastic platform, so it's most relevant if your team already searches logs there and wants traces and metrics in the same place. If you're also weighing dashboard tools, my Grafana alternatives page is the companion to this one.
Build an OpenTelemetry tool that belongs in one of these three groups? Ask to be considered for this page.
SigNoz alternatives by name
Words in quotation marks are each vendor's own, and the eight appear in no particular order.
Better Stack
Best for: Replacing a separate paging tool, as it pitches "an AI SRE observability stack" that covers incident management and on-call.
Coroot
Best for: Getting from alert to cause faster: it says it "points to the root cause when something breaks".
Dash0
Best for: Teams that want observability "built on CNCF open standards" with OpenTelemetry at the core.
Elastic Observability
Best for: Root cause analysis with help from what it calls "agentic AI".
HyperDX
Best for: Front-end and back-end debugging in one place, with "session replays, logs, traces, metrics and errors" together.
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Last9
Best for: SREs who want "metrics, logs, traces and APM in one view".
OpenObserve
Best for: Keeping every signal in one open source tool, pitched as "unified observability for the AI era".
Uptrace
Best for: Tracing-first teams that also want metrics and logs, in a tool it describes as "OpenTelemetry-native".
Advice for a side-by-side trial
Don't pick from homepages. Pick from your own incidents. Because these tools accept OpenTelemetry data, you can send a copy of one service's telemetry to two of them at once and compare how each helps on a slow request or a failed deploy. Keep the trial narrow and time-boxed so the comparison stays fair.
- Choose one noisy service. Pick something that misbehaves often enough to give you real errors during the trial.
- Add a second exporter. Configure your OpenTelemetry Collector to send the same traces, metrics and logs to both candidates.
- Replay a known bad day. Take an incident you've already solved and see how quickly each tool leads you from alert to cause.
- Check the dull parts. Look at retention settings, access control, alert routing and how easily you could export your data if you left.
- Read the ownership line again. Before you sign, check the vendor's news page one more time.
If one tool wins on the incident you know best, that's a stronger signal than any feature list. If neither does, stay where you are a little longer and try two different candidates from another group.
Want your tool on this list? Featured spots and reviews here are paid partnerships. Here's how to partner with me.
Frequently asked questions
Is OpenTelemetry enough to avoid lock-in?
It helps a lot with collection, because your instrumentation isn't tied to one backend. Dashboards, alerts and saved queries still live inside each tool, so expect to rebuild those when you move.
Can I self-host and still get support?
Some open source vendors also sell a hosted cloud or support plans. Check each vendor's own site for what comes with the self-hosted edition.
What's eBPF, in plain terms?
It's a Linux kernel technology that lets a tool observe what programs are doing without changing their code. Tools built on it can collect data from services you haven't instrumented.
Do I need the OpenTelemetry Collector to switch?
Not always, but it makes switching easier. With a collector in the middle, you can send the same data to two backends and change destination later without touching application code.
Should I run two observability tools for good?
For a trial, yes. Long term, one is simpler, because alerts and on-call don't end up split across two systems.
Why isn't Grafana on this list?
It has its own page on this site, so this list keeps to tools that aren't covered there.
