# 2 Best Open Source Alternatives for FullStory

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

Looking for the best open source alternative for FullStory? Compare 2 verified free and open source alternatives to FullStory (OpenReplay, Trench) with license details, self-hosting requirements, and practical trade-offs.

## FullStory Overview & Subscription Cost
- **Product**: FullStory
- **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 FullStory or rebuilding it from scratch, deploy one of the 2 battle-tested open-source alternatives like OpenReplay.

## Verified Free & Open Source Alternatives

| Alternative | Type | License | Runs On | GitHub Stars | Head-to-Head |
| --- | --- | --- | --- | --- | --- |
| [OpenReplay](https://caniforkit.com/fork/openreplay) | Open Source | AGPL-3.0 | Self-host | ★ 13.1k | [Compare vs FullStory](https://caniforkit.com/vs/fullstory-vs-openreplay) |
| [Trench](https://caniforkit.com/fork/trench) | Open Source | Open Source | Self-host | ★ 1.7k | [Compare vs FullStory](https://caniforkit.com/vs/fullstory-vs-trench) |

## In-Depth Alternative Profiles

### OpenReplay
- **Fork Page**: [OpenReplay Profile](https://caniforkit.com/fork/openreplay)
- **Head-to-Head Comparison**: [FullStory vs OpenReplay](https://caniforkit.com/vs/fullstory-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 FullStory**: 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

### Trench
- **Fork Page**: [Trench Profile](https://caniforkit.com/fork/trench)
- **Head-to-Head Comparison**: [FullStory vs Trench](https://caniforkit.com/vs/fullstory-vs-trench)
- **Official Website**: https://trench.dev
- **Source Code Repository**: https://github.com/FrigadeHQ/trench
- **License**: Open Source
- **Runs On**: Self-host
- **GitHub Stars**: 1.7k
- **Maintenance Activity**: nov 2026
- **Supported Platforms**: web, self-hosted, docker to self-host
- **Summary**: Open source analytics platform built on ClickHouse and Kafka, offering high-speed event tracking and real-time querying capabilities.
- **The Catch vs FullStory**: Requires self-hosting setup, updates, and server maintenance compared to managed FullStory.
- **Installation**: Clone https://github.com/FrigadeHQ/trench or deploy with Docker Compose
- **Setup**: Deploy via Docker or binary release from GitHub and configure environment variables.
- **Data Storage**: All application data and configuration live on your own server or local database.

## Frequently Asked Questions

### What is the best free alternative to FullStory?
The top free alternative to FullStory is OpenReplay (open source, AGPL-3.0). Open-source session replay and product analytics platform you can self-host for complete control over data security, privacy, and compliance. Other popular FullStory replacements include Trench.

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

### What is the catch when switching away from FullStory?
While OpenReplay replaces core FullStory features without subscription fees, the real-world trade-off is: It is developer-debugging-first, harder to operate and weaker for turnkey form analytics, feedback and UX-research workflows.

## 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)