Best Open-Source Amplitude Alternatives (2026)

14 self-hostable, open-source projects that replace Amplitude — without expensive once you outgrow the free tier. Each is scored for how hard it is to self-host, with one-click deploy options where they exist.

Amplitude's free tier is generous until your event volume grows, then pricing scales sharply and the useful retention/behavioral features sit behind paid plans. Teams also leave to keep raw event data and PII on their own infrastructure instead of shipping it to a third-party cloud.

Abstract visualization of data analytics with graphs and charts showing dynamic growth.
Photo by Negative Space on Pexels

Our picks at a glance

Easiest to self-host
Countly

At difficulty 4/5 it is the lowest-effort of the three and ships with a straightforward Docker Compose deploy.

Most powerful
PostHog

It is the only all-in-one here, bundling product analytics, session replay, feature flags, and A/B testing in one platform.

Most active
PostHog

At 35,000 stars it has by far the most momentum of the three alternatives.

Best managed option
PostHog

It offers official managed (cloud) hosting and is the most feature-complete, so the hosted tier replaces Amplitude most directly.

Compare all 14 alternatives

ProjectDeployManagedLicense
PostHog
Python
37k
5/5
Advanced
Docker Compose
Kubernetes
+1
MIT3 days agoRepo
Postiz
Docker
34k
3/5
Moderate
Docker
Docker Compose
+1
AGPL-3.03 days agoRepo
Netron
Python
33k
1/5
Effortless
Manual
MIT4 days agoRepo
21k
2/5
Easy
Docker
Manual
GPL-2.010 days agoRepo
Druid
Java
14k
5/5
Advanced
Docker
Docker Compose
+2
Apache-2.03 days agoRepo
OpenReplay
TypeScript
12k
5/5
Advanced
Kubernetes
Docker Compose
+1
Apache-2.03 days agoRepo
Countly
JavaScript
5.9k
4/5
Involved
Docker Compose
Manual
AGPL-3.03 days agoRepo
4.5k
3/5
Moderate
Docker
Docker Compose
+1
Elastic-2.03 days agoRepo
2k
2/5
Easy
Docker
Manual
AGPL-3.011 months agoRepo
Aptabase
Docker
1.8k
3/5
Moderate
Docker
Docker Compose
AGPL-3.03 days agoRepo
1.6k
3/5
Moderate
Docker
Docker Compose
Apache-2.01 month agoRepo
Swetrix
JavaScript
1.1k
3/5
Moderate
Docker
Docker Compose
AGPL-3.04 days agoRepo
Cabin
JavaScript
800
2/5
Easy
Docker
Manual
MIT2 months agoRepo
127
3/5
Moderate
Docker
Docker Compose
AGPL-3.05 months agoRepo

What to look for: Decide whether you need just product analytics or the full stack (session replay, feature flags, experiments) in one place, because that determines how heavy the deployment is. All three options here are event-pipeline systems, so budget for the database/ingestion load and confirm the managed tier exists if you don't want to run ClickHouse or similar yourself.

The alternatives, reviewed

  1. #1
    PostHog
    Self-host: Advanced

    All-in-one product analytics, session replay, feature flags, and A/B testing

    37k Python MIT 3 days ago
    How it compares to Amplitude
    • Self-hosting the full ClickHouse + Kafka + Postgres + Redis stack is heavy; the project actively steers smaller users toward PostHog Cloud.
    • Some enterprise features live under a separate proprietary ee license, not pure MIT.
    • The all-in-one breadth means it is more complex to operate than a focused tool like Mixpanel.
  2. #2
    Postiz
    Self-host: Moderate

    Self-hosted social media scheduling and analytics platform for all major networks

    34k Docker AGPL-3.0 3 days ago
    How it compares to Amplitude
    • Inbox/engagement management (replying to comments and DMs) is limited compared to Hootsuite or Sprout Social
    • Social listening and brand mention monitoring are not included
    • Detailed competitor analysis and benchmarking features are absent
    • Some platform integrations require individual developer app approvals
  3. #3
    Netron
    Self-host: Effortless

    Interactive visualizer for neural network and machine learning model graphs

    33k Python MIT 4 days ago
    How it compares to Amplitude
    • Purely a model visualization tool; no runtime analytics, dashboards, or event tracking
    • Does not replace web or product analytics SaaS in any meaningful way
    • No team collaboration or sharing features beyond exporting images
    • No support for real-time or streaming model inference monitoring
  4. #4
    GoAccess
    Self-host: Easy

    Real-time web log analyzer with terminal and browser-based interactive dashboards

    21k C GPL-2.0 10 days ago
    How it compares to Amplitude
    • Analyzes server logs only; no JavaScript snippet for client-side event or user-behavior tracking
    • No user session recording, heatmaps, or funnel analysis
    • No retention, cohort, or A/B test reporting
    • Historical trend analysis is limited to what the log files contain
  5. #5
    Druid
    Self-host: Advanced

    Distributed, column-oriented real-time analytics data store for high-throughput queries

    14k Java Apache-2.0 3 days ago
    How it compares to Amplitude
    • No built-in session analytics, funnel analysis, or retention cohorts compared to Mixpanel/Amplitude
    • Requires significant infrastructure knowledge (ZooKeeper, deep-storage, coordinator/broker/historical nodes)
    • No out-of-the-box user-facing dashboarding — must pair with Superset or Grafana
    • Operational cost and cluster management overhead is very high for small teams
  6. #6
    OpenReplay
    Self-host: Advanced

    Self-hosted session replay and product analytics for web apps

    12k TypeScript Apache-2.0 3 days ago
    How it compares to Amplitude
    • Self-hosting requires a Kubernetes-based multi-service stack; resource-hungry and complex to operate.
    • Product-analytics features (funnels, cohorts) are less mature than Amplitude/Mixpanel.
    • No traditional aggregate web-analytics dashboard; it is session-centric.
  7. #7
    Countly
    Self-host: Involved

    Privacy-first product analytics for web, mobile, and desktop apps

    5.9k JavaScript AGPL-3.0 3 days ago
    How it compares to Amplitude
    • Many advanced features (push notifications, A/B testing, some drill plugins) are reserved for the paid Enterprise Edition.
    • The Community Edition documentation and upgrade path can be rough.
    • UI and query speed lag behind ClickHouse-backed competitors at large scale.
  8. #8
    RudderStack
    Self-host: Moderate

    Open-source customer data platform to collect, route, and transform event data

    4.5k Docker Elastic-2.0 3 days ago
    How it compares to Amplitude
    • Elastic-2.0 license prohibits offering RudderStack as a managed service to third parties
    • The self-hosted control plane UI is limited; some advanced audience and reverse-ETL features require cloud tier
    • Requires Postgres + message queue to be provisioned and managed separately
    • Documentation for self-hosting advanced features (transformations, live events debugger) is sparse
  9. #9
    Vince
    Self-host: Easy

    Lightweight, privacy-first web analytics dashboard — single binary, no external deps

    2k Go AGPL-3.0 11 months ago
    How it compares to Amplitude
    • No heatmaps, session recordings, or user-level event streams
    • Smaller destination ecosystem — no built-in integrations with ad platforms or CRMs
    • Community is small; plugin/extension ecosystem is essentially nonexistent
    • No multi-site team management or SSO in the self-hosted build
  10. #10
    Aptabase
    Self-host: Moderate

    Privacy-first, open-source analytics for mobile and desktop apps

    1.8k Docker AGPL-3.0 3 days ago
    How it compares to Amplitude
    • No funnel, retention, or cohort analysis out of the box
    • Limited to event-based tracking; no session replay or heatmaps
    • Smaller SDK ecosystem compared to Firebase Analytics or Mixpanel
    • Self-hosted version may lag behind the cloud product in features
  11. #11
    Middleware
    Self-host: Moderate

    Engineering analytics platform that measures team effectiveness via DORA metrics

    1.6k Docker Apache-2.0 1 month ago
    How it compares to Amplitude
    • Focused exclusively on engineering metrics; not a general-purpose product or user analytics tool
    • Integration list is limited to Git hosting platforms and Jira — no PagerDuty or incident-management connectors yet
    • Trend and benchmark data requires a sufficiently long history of merged PRs to be meaningful
    • No alerting or notification system for metric regressions
  12. #12
    Swetrix
    Self-host: Moderate

    Open-source alternative to Google Analytics with custom events and funnels

    1.1k JavaScript AGPL-3.0 4 days ago
    How it compares to Amplitude
    • ClickHouse is required; no SQLite fallback for small deployments
    • Session replay not yet available in the self-hosted build
    • Documentation for self-hosting is less mature than for the managed service
  13. #13
    Cabin
    Self-host: Easy

    Carbon-aware, privacy-respecting web analytics for the climate-conscious

    800 JavaScript MIT 2 months ago
    How it compares to Amplitude
    • Minimal real-time view; data updates on a delay
    • No user-level session replay or heatmaps
    • Limited integrations compared to commercial tools
  14. #14
    Prisme Analytics
    Self-host: Moderate

    Event-stream analytics built on ClickHouse for developer teams

    127 Go AGPL-3.0 5 months ago
    How it compares to Amplitude
    • No no-code dashboard builder; requires SQL knowledge for custom reports
    • ClickHouse dependency increases minimum infrastructure footprint
    • No session replay, heatmaps, or A/B testing modules

The verdict

PostHog is the closest one-for-one Amplitude replacement: it matches the product-analytics core and adds replay, flags, and experiments, with both self-host and a managed cloud. Pick Countly if you specifically want a lighter, easier deployment.

Amplitude alternatives — frequently asked questions

What is the best open-source alternative to Amplitude?

PostHog is the most direct fit. It covers Amplitude's product-analytics features and also bundles session replay, feature flags, and A/B testing, is MIT-licensed, and offers both self-hosting and managed cloud.

Is there a free self-hosted Amplitude alternative?

Yes. PostHog (MIT), OpenReplay (Apache-2.0), and Countly (AGPL-3.0) are all free to self-host. PostHog and OpenReplay run on Kubernetes or Docker Compose; Countly runs on Docker Compose.

Which Amplitude alternative is easiest to self-host?

Countly, at difficulty 4/5, is the easiest of the three and deploys with Docker Compose. PostHog and OpenReplay are both rated 5/5 because of their heavier multi-service architecture.

Do any of these offer hosted (managed) plans so I don't have to run servers?

Yes, all three (PostHog, OpenReplay, and Countly) offer an official managed hosting option, so you can start in the cloud and move to self-hosting later if you want full data ownership.

I want session replay, not just charts. Which should I pick?

PostHog and OpenReplay both include session replay; OpenReplay is replay-first. PostHog adds product analytics, flags, and experiments around it, while OpenReplay focuses on replay plus analytics for web apps.

Which is the most privacy-focused option?

Countly markets itself as privacy-first analytics for web, mobile, and desktop and is AGPL-3.0. Self-hosting any of the three already keeps event data on your own infrastructure rather than Amplitude's cloud.

Keep exploring