# 4 Best Open Source Alternatives for Hotjar

Canonical: https://caniforkit.com/hotjar
Last updated: 2026-11-07

Looking for the best open source alternative for Hotjar? Compare 4 verified free and open source alternatives to Hotjar (PostHog, Rybbit, OpenReplay) with license details, self-hosting requirements, and practical trade-offs.

## Hotjar Overview & Subscription Cost
- **Product**: Hotjar
- **Category**: [analytics](https://caniforkit.com/category/analytics)
- **Paid Subscription Price**: $35/month per seat
- **1-Seat Annualized Cost**: $420/year
- **5-Person Team Annualized Cost**: $2,100/year
- **10-Person Team Annualized Cost**: $4,200/year
- **Can I Vibe-Code / Rebuild It Myself?**: NO (use a free alternative, save the tokens)
- **Rebuild Verdict**: Instead of paying recurring SaaS fees for Hotjar or rebuilding it from scratch, deploy one of the 4 battle-tested open-source alternatives like PostHog.

## Verified Free & Open Source Alternatives

| Alternative | Type | License | Runs On | GitHub Stars | Head-to-Head |
| --- | --- | --- | --- | --- | --- |
| [PostHog](https://caniforkit.com/fork/posthog) | Open Source | MIT | Self-host | ★ 40.7k | [Compare vs Hotjar](https://caniforkit.com/vs/hotjar-vs-posthog) |
| [Rybbit](https://caniforkit.com/fork/rybbit) | Open Source | AGPL-3.0 | Self-host | ★ 13.2k | [Compare vs Hotjar](https://caniforkit.com/vs/hotjar-vs-rybbit) |
| [OpenReplay](https://caniforkit.com/fork/openreplay) | Open Source | AGPL-3.0 | Self-host | ★ 13.1k | [Compare vs Hotjar](https://caniforkit.com/vs/hotjar-vs-openreplay) |
| [Fathom Lite](https://caniforkit.com/fork/fathom) | Free | proprietary, free | Hosted | ★ 8k | [Compare vs Hotjar](https://caniforkit.com/vs/hotjar-vs-fathom) |

## In-Depth Alternative Profiles

### PostHog
- **Fork Page**: [PostHog Profile](https://caniforkit.com/fork/posthog)
- **Head-to-Head Comparison**: [Hotjar vs PostHog](https://caniforkit.com/vs/hotjar-vs-posthog)
- **Official Website**: https://posthog.com
- **Source Code Repository**: https://github.com/posthog/posthog
- **License**: MIT
- **Runs On**: Self-host
- **GitHub Stars**: 40.7k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: mobile, web, they host it
- **Summary**: All-in-one product analytics platform. Track user behavior, run experiments, and make data-driven decisions to grow your product.
- **The Catch vs Hotjar**: Its kitchen-sink product is heavier, while Amplitude's core product-analytics workflows and governance are more refined.
- **Installation**: Create a PostHog Cloud project or use the hobby self-host script on a Linux server
- **Setup**: None for hosted signup; self-hosting is an unsupported, resource-heavy multi-service stack requiring serious operations work
- **Data Storage**: The self-hosted stack splits analytics, transactions, queues and recordings across ClickHouse, PostgreSQL, Kafka, Redis and object storage; cloud data lives in PostHog's managed regions

### Rybbit
- **Fork Page**: [Rybbit Profile](https://caniforkit.com/fork/rybbit)
- **Head-to-Head Comparison**: [Hotjar vs Rybbit](https://caniforkit.com/vs/hotjar-vs-rybbit)
- **Official Website**: https://rybbit.io/
- **Source Code Repository**: https://github.com/rybbit-io/rybbit
- **License**: AGPL-3.0
- **Runs On**: Self-host
- **GitHub Stars**: 13.2k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: mobile, web, self-hosted, docker to self-host
- **Summary**: Get next-gen, open-source, and cookieless web analytics. Understand user behavior with session replays, real-time data, and web vitals. GDPR/CCPA compliant.
- **The Catch vs Hotjar**: Its replay and heatmap tooling is newer and less mature for form debugging, consent workflows and dedicated UX research than Mouseflow.
- **Installation**: Use the hosted service or deploy the free self-hosted edition with Docker Compose
- **Setup**: The indefinitely free path is self-hosting, which requires Docker Compose, a domain, secrets and enough resources for three data services
- **Data Storage**: The self-hosted stack uses PostgreSQL for application data, ClickHouse for analytics and Redis for queues and cache; hosted data lives in Rybbit's cloud

### OpenReplay
- **Fork Page**: [OpenReplay Profile](https://caniforkit.com/fork/openreplay)
- **Head-to-Head Comparison**: [Hotjar vs OpenReplay](https://caniforkit.com/vs/hotjar-vs-openreplay)
- **Official Website**: https://openreplay.com
- **Source Code Repository**: https://github.com/openreplay/openreplay
- **License**: AGPL-3.0
- **Runs On**: Self-host
- **GitHub Stars**: 13.1k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: mobile, web, self-hosted, self-host, real ops
- **Summary**: Open-source session replay and product analytics platform you can self-host for complete control over data security, privacy, and compliance.
- **The Catch vs Hotjar**: It is developer-debugging-first, harder to operate and weaker for turnkey form analytics, feedback and UX-research workflows.
- **Installation**: Create a hosted account or deploy to a public Ubuntu 24.04 server with the CLI or Helm; Docker Compose is experimental
- **Setup**: Free self-hosting needs a public x86 Ubuntu server, domain and TLS, with at least about 2 vCPU, 8 GB RAM and 50 GB storage
- **Data Storage**: Replay and telemetry data live in the deployment's databases and object storage, or in OpenReplay's managed cloud when using the hosted service

### Fathom Lite
- **Fork Page**: [Fathom Lite Profile](https://caniforkit.com/fork/fathom)
- **Head-to-Head Comparison**: [Hotjar vs Fathom Lite](https://caniforkit.com/vs/hotjar-vs-fathom)
- **Official Website**: https://usefathom.com
- **Source Code Repository**: https://github.com/usefathom/fathom
- **License**: proprietary, free
- **Runs On**: Hosted
- **GitHub Stars**: 8k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: desktop, web, they host it
- **Summary**: A simple, privacy-first analytics platform that provides valuable website insights without compromising visitor data or requiring cookie consent banners.
- **The Catch vs Hotjar**: The free plan is individual-first and lacks Fireflies' richer team analytics, CRM workflow automation and broad cross-meeting collaboration.
- **Installation**: Hosted signup, connect Google or Outlook Calendar, and install or authorize Fathom's meeting capture app or bot
- **Setup**: Authorizing calendar, microphone or screen capture and the visible meeting bot or beta bot-free recorder
- **Data Storage**: Meeting audio/video, transcripts, notes and calendar/attendee metadata in Fathom's US-hosted cloud; recordings remain until deleted on free plans and can be downloaded or exported

## Frequently Asked Questions

### What is the best free alternative to Hotjar?
The top free alternative to Hotjar is PostHog (open source, MIT). All-in-one product analytics platform. Track user behavior, run experiments, and make data-driven decisions to grow your product. Other popular Hotjar replacements include Rybbit, OpenReplay, Fathom Lite.

### How much does switching from Hotjar to a free alternative save?
Hotjar starts at $35/month per seat ($420/year). Switching a 5-person team to a free alternative like PostHog saves $2,100 per year in software subscription fees.

### What is the catch when switching away from Hotjar?
While PostHog replaces core Hotjar features without subscription fees, the real-world trade-off is: Its kitchen-sink product is heavier, while Amplitude's core product-analytics workflows and governance are more refined.

## Related

- [analytics Software Category Hub](https://caniforkit.com/category/analytics)
- [All Paid SaaS Alternatives Index](https://caniforkit.com/alternatives)
- [Self-Hosted Software Directory](https://caniforkit.com/self-hosted)
- [Homepage](https://caniforkit.com)