1 Best Open-Source Alternatives to Amplitude in 2026
By Noahlast updated pricing verified
Compared: open-source alternatives to Amplitude
| Alternative | Best for | Standout | Biggest weakness | Learning curve | Price |
|---|---|---|---|---|---|
| Amplitudereference | product teams that need behavioral analytics, session replay, and lightweight experimentation in one tool, and prefer usage-based pricing tied to event volume over per-seat licensing | Bundles product analytics, session replay, and feature experimentation under one usage-based pricing model, plus native MCP connectivity so AI coding tools like Claude and Cursor can query product data directly. | Pricing above the free 2-million-event tier is usage-based and largely hidden behind "contact sales" for Growth and Enterprise, making it hard to budget for a scaling product without a sales conversation; heavy instrumentation can also drive event volume, and cost, up faster than teams expect. | Moderate | Free |
| PostHog | product and engineering teams who want analytics, session replay, feature flags, and error tracking in one platform instead of stitching together separate tools | One platform combining product analytics, session replay, feature flags/A-B testing, error tracking, and a data warehouse, each billed on its own usage-based rate that drops at higher volume. | Usage-based pricing across many separate products (events, replays, flags, surveys, data warehouse rows) makes total monthly cost harder to predict than a single flat per-seat price, and some enterprise features live in a separate proprietary ('ee') license rather than the fully open-source core. | Moderate | Free |
Amplitude
PostHog1.PostHog — best Amplitude alternative for product and engineering teams who want analytics, session replay, feature flags, and error tracking in one platform instead of stitching together separate tools
PostHog is the best Amplitude alternative for product and engineering teams who want analytics, session replay, feature flags, and error tracking in one platform instead of stitching together separate tools. PostHog's MIT-licensed core combines product analytics, session replay, feature flags/A-B testing, error tracking, and a data warehouse, each billed on its own usage-based rate that drops at higher volume, and it's free up to 1 million analytics events per month, close to Amplitude's own free-up-to-2M-events tier. PostHog holds a 5.0/5 rating from 253 Product Hunt reviews, more review volume than Amplitude's 68 Capterra reviews. Amplitude is still the better choice for teams that want a single, predictable pricing model with a mature AI-powered analytics layer: PostHog's usage-based pricing across many separate products, events, replays, flags, surveys, data warehouse rows, makes total monthly cost harder to predict than a single flat per-seat price, and some enterprise features live in a separate proprietary 'ee' license rather than the fully open-source core.
Compared to Amplitude: an MIT-licensed open-source core bundling analytics, session replay, feature flags, and error tracking in one platform, a free tier up to 1M events, and a 5.0/5 rating from 253 Product Hunt reviews
Wins:MIT-licensed open-source core combines analytics, session replay, feature flags/A-B testing, error tracking, and a data warehouse in one platform · 5.0/5 rating from 253 Product Hunt reviews, more review volume than Amplitude's 68 Capterra reviews · Self-hostable open-source core, an option Amplitude's closed-source, cloud-only product doesn't offer
Loses:Usage-based pricing across many separate products (events, replays, flags, surveys, data warehouse rows) makes total monthly cost harder to predict than a single flat per-seat price · Some enterprise features live in a separate proprietary 'ee' license rather than the fully open-source core · Free tier caps at 1M events/month, lower than Amplitude's free tier up to 2M events/month
Pros
- Combines analytics, session replay, feature flags, error tracking, and surveys in one platform.
- Generous free tier: 1M analytics events and 5,000 session replays per month with no credit card required.
- MIT-licensed core with source available on GitHub, plus a dedicated posthog-foss repository for strictly open-source use.
- Choice of US or EU cloud region, or self-hosting.
Cons
- Usage-based pricing spans multiple products independently, making total monthly cost harder to forecast than flat per-seat pricing.
- Some enterprise features are gated behind a separate proprietary license (the 'ee' directory), not the fully open-source core.
- Self-hosting PostHog at scale requires more operational overhead than using the managed cloud.
- The breadth of bundled tools (analytics, replay, flags, surveys, data warehouse) means new users face a wider surface area to learn than a single-purpose analytics tool.
Pricing: Free — Free up to 1M events/month, then pay-as-you-go vs Amplitude's free up to 2M events/month, then usage-based pricing (verified undefined NaN, NaN)