Privacy-focused analytics platforms recorded significant adoption growth in 2024, with open source solutions now powering over 2 million websites globally. The shift away from Google Analytics accelerated after GDPR enforcement actions, pushing organizations toward self-hosted alternatives. Platforms like Umami, Plausible, and PostHog reported user base increases ranging from 40% to 120% year-over-year as of January 2025.
Open Source Google Analytics Alternatives Key Statistics
- OpenPanel processes over 50 million events monthly across its user base as of 2025
- Plausible Analytics tracks more than 1.5 million websites worldwide
- PostHog raised $45 million in Series B funding, reaching a $450 million valuation
- Matomo reports installations on 1.4 million websites across 190 countries
- Umami GitHub repository has accumulated over 20,000 stars since its 2020 launch
Open Source Google Analytics Alternatives Feature Comparison
Each platform offers distinct capabilities tailored to different use cases. Cookie-free tracking has become standard across all major alternatives, eliminating consent banner requirements in most jurisdictions.
| Platform | Cookie-Free | Self-Hosting | Real-Time Data | Session Replay |
|---|---|---|---|---|
| OpenPanel | Yes | Yes | Yes | No |
| Umami | Yes | Yes | Yes | No |
| PostHog | Yes | Yes | Yes | Yes |
| Plausible | Yes | Yes | Yes | No |
| Matomo | Optional | Yes | Yes | Yes |
Open Source Google Analytics Alternatives Pricing Models
Cost structures vary significantly between platforms. OpenPanel starts at $2.50 monthly for 5,000 events. Plausible charges $9 monthly for up to 10,000 pageviews. PostHog offers a generous free tier covering 1 million events per month before paid plans begin.
Self-hosting remains free for all platforms, though infrastructure costs apply. Organizations processing over 10 million monthly events typically spend between $50 and $200 on cloud hosting depending on their provider.
Script Size and Performance Impact
Tracking script weight directly affects page load times. Plausible delivers the smallest footprint at under 1KB. Umami weighs approximately 2KB. Google Analytics 4 requires over 45KB, making open source alternatives 20 to 45 times lighter.
Open Source Google Analytics Alternatives for Enterprise
Matomo dominates enterprise deployments with installations at organizations including the United Nations, NASA, and European Commission. The platform processes billions of actions monthly across its user base. Advanced features include heatmaps, A/B testing, and e-commerce tracking capabilities comparable to premium solutions.
PostHog targets product teams specifically. The platform combines traditional analytics with session recordings, feature flags, and experimentation tools. Self-hosted deployments can run on a single server or scale across Kubernetes clusters.
Data Retention Policies
Retention periods differ substantially across platforms. Plausible and Fathom Lite store data indefinitely. PostHog retains data for 7 years on paid plans. Umami imposes no retention limits on self-hosted installations.
| Platform | Free Tier Retention | Paid Retention | Self-Hosted |
|---|---|---|---|
| Plausible | Forever | Forever | Unlimited |
| PostHog | 1 year | 7 years | Unlimited |
| Umami | Forever | Forever | Unlimited |
| Matomo | N/A | Customizable | Unlimited |
Open Source Google Analytics Alternatives GDPR Compliance
Privacy regulations drove much of the migration to open source platforms. Cookie-free tracking eliminates consent requirements under GDPR Article 6. Self-hosting ensures data never leaves organizational infrastructure, simplifying compliance documentation.
Plausible and Fathom operate servers exclusively within the European Union. Umami and PostHog offer EU-based cloud regions. Matomo provides both cloud and on-premise options with data processing agreements covering GDPR, CCPA, and PECR requirements.
Open Source Google Analytics Alternatives for Mobile Apps
Aptabase specializes in mobile application analytics across iOS, Android, macOS, and Windows. The platform collects only essential metrics without device fingerprinting. Countly extends tracking to mobile, web, and desktop applications simultaneously through unified SDKs.
PostHog supports mobile through React Native, Flutter, iOS, and Android SDKs. Crash reporting and session replay work across platforms. Integration typically requires under 30 minutes using documented setup guides.
FAQ
Which open source analytics platform has the most users?
Matomo leads with installations on 1.4 million websites across 190 countries. Plausible follows with over 1.5 million tracked sites on its cloud platform as of 2025.
Are open source analytics alternatives truly free?
Self-hosted versions remain completely free. Cloud-hosted plans start from $2.50 monthly for OpenPanel and $9 monthly for Plausible. Infrastructure costs apply for self-hosting.
Do privacy-focused analytics affect data accuracy?
Cookie-free platforms track pageviews and sessions accurately. They cannot track individual users across sessions or devices, which affects returning visitor metrics.
Can I migrate historical data from Google Analytics?
Most platforms do not support Google Analytics imports. Matomo offers limited migration tools. Organizations typically run both platforms briefly during transitions.
Which platform works best for high-traffic websites?
PostHog and Matomo handle enterprise-scale traffic exceeding 100 million monthly events. Self-hosted deployments scale horizontally across server clusters.