# 1 Best Open-Source Alternatives to Amplitude in 2026

By Noah — last updated & pricing verified September 15, 2026.

> 1 of the 5 Amplitude alternatives we list qualify for this filter. The [full list](https://findalternative.to/amplitude) is the canonical page.

| Alternative | Best for | Price | Details |
| --- | --- | --- | --- |
| PostHog | product and engineering teams who want analytics, session replay, feature flags, and error tracking in one platform instead of stitching together separate tools | Free | https://findalternative.to/posthog/about |

All 5 alternatives to Amplitude: https://findalternative.to/amplitude

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Markdown mirror of https://findalternative.to/amplitude/open-source — findalternative.to, honestly ranked software alternatives. AI info: https://findalternative.to/ai