Get the actual full story:
Multiplayer vs Fullstory
From just frontend, user behaviour data to full stack, end-to-end visibility. With Multiplayer you get the full picture on technical issues and bugs, immediately. 
How is Multiplayer different?
The actual full story, not just frontend data
Multiplayer provides full stack session recordings that correlate frontend and backend data out of the box.
- Fullstory is primarily a UX analytics tool focused on capturing frontend user behavior. But it stops at the browser. When something breaks or you need to resolve a technical issue, teams must manually piece together the complete picture: hunting through observability tools, correlating timestamps across systems, and searching for user feedback and technical discussions. Despite the name, you're actually getting only half the story.
- Multiplayer gives you the full story, by default. Full stack session recordings provide complete context from the start, automatically correlating everything (frontend screens, user actions, backend traces, logs, request/response content and headers and user feedback) in a single, shared, annotatable timeline. No hunting, no manual correlation, no tool switching.
From day one, you get true end-to-end visibility, seamlessly integrated with whichever observability stack you already use.
Everything you need, for any support scenario, out of the box
Multiplayer adapts to every support workflow. No extra tools, no manual workarounds, no rigid setup. Whether you’re handling a question about “unexpected behavior” or a complex cross-service incident, Multiplayer gives you the full context to resolve it.
• Fullstory is built for product analytics, not technical debugging and support. Recordings are primarily used by PM and UX teams to study behavior trends at scale, which is why the platform relies on always-on frontend capture with limited control over when, what, or how sessions are recorded. Support workflows often require additional configuration, multiple external tools, or features that Fullstory simply doesn’t support.
• Multiplayer enables any support workflow with any existing ticketing system (e.g. Zendesk, Intercom, Jira). Multiple full stack recording modes give you control without overhead. Multiple installation methods work however your team works. Your team can work across multiple use cases: from actively resolving technical support tickets to proactively identifying bugs so you can fix them before users even realize they are there.
With Multiplayer, a single tool powers many workflows out of the box
Developer-friendly and AI-native
Multiplayer fits seamlessly into your existing workflows and tool stack.
• Fullstory has limited install and deployment options
Aside from the lack of full stack data (or backend integrations), Fullstory can be installed only via SDK and deployed as a SaaS solution. Many capabilities relevant to technical teams (e.g. mobile support, user segmentation, AI workflows with IDE and AI coding assistants) are locked behind higher-tier, add-ons, or not available at all.
• Multiplayer is full-stack, backend-agnostic by default.
Full-stack session recordings capture everything out of the box, including critical data such as request/response content and headers from deep within your system. It’s compatible with any observability platform, language, environment, architecture, and IDE / AI tool. You can also host in the cloud or self-host.
Multiplayer is built for support and engineering teams who need the complete picture across all layers of the stack, immediately.
Why use Multiplayer?
Better data for AI agents (and humans)
Full-stack, auto-correlated, unsampled. Everything you need from frontend screens to backend traces and logs. We also include things your observability tools miss like request/response content and headers from all components in your system.
Plug & Play with your favorite coding agent
Claude Code, Codex, Copilot, … Route issues directly to any and all coding agents you already use and love. No tool switching or ramping up on a proprietary coding agent. Connect our debugging agent to prod and auto-fix bugs while your system is running.
Local first, more secure
Run Multiplayer right next to your coding agent. We cache sessions locally and send data only when we identify a new issue.Complete control over what you debug. Your code is safe: unlike other debugging agents we don’t need access to it.
Intelligent issue creation and deduplication
No PR slop or review fatigue. We gather only the data you need and just enough of it. Issues are deduplicated so the same bug is only tracked once, no matter how many times it was reported. You never have to review or fix the same issue twice.Getting started with Multiplayer
is easy.
One copy/paste in your terminal, and you’re done.
npm install -g @multiplayer-app/cli && multiplayerMore languages and CLI SDKs can be found in our documentation.
Your coding agent is only as good as
the data it uses. Give it what it needs.
Talk to one of our experts and see Multiplayer in action.
Test all our features and experience the full power of Multiplayer.
Check out our in-depth technical documentation.
Best practices on system design, debugging, and observability.