From frontend to full-stack:
Multiplayer vs. Jam

Jam captures frontend bugs. Multiplayer captures your full stack, supports every workflow, and gives you the tools to fix, validate, and move forward.

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How is Multiplayer different?

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Full stack visibility, not just frontend data

Multiplayer provides full stack session recordings that correlate frontend and backend data out of the box.

Jam is a frontend session recorder by default, built to capture context like browser screens, console logs, network requests, and device details. On higher-tier plans, it can pull in sampled backend traces via a Sentry integration, but that requires extra setup and an extra tool.
Multiplayer provides full stack session recordings by default, across all plans, backend agnostic. Each replay correlates frontend screens, user actions, backend traces, logs, request/response payloads, headers, and user feedback into a single timeline. From day one, you get true end-to-end visibility, seamlessly integrated with whichever observability stack you already use.

Full stack visibility, not just frontend data

Session recordings for all engineering workflows, not just debugging

Multiplayer session replays support multiple install options, recording modes, and use cases across the entire software development lifecycle.

Jam is built for reporting frontend bugs with an on-demand workflow. It lacks multiple install methods or recording modes, so it can’t adapt as easily to different teams and scenarios.
Multiplayer session replays are versatile by design. Recording a session (on demand, continuous, or remote) is as simple as clicking a button in your in-app widget, browser extension or through an SDK. We support debugging (same as Jam), but we also allow:
- Developers get full-stack context for bugs and system behavior,
- QA can see exactly why tests failed,
- Customer Support can always resolve tickets with complete context,
- Everyone can annotate replays with sketches and requirements for new features.

With Multiplayer, a single investment powers many workflows out of the box, from debugging and testing to support and feature development.

Session recordings for all engineering workflows, not just debugging

Full circle debugging: capture, fix, validate, repeat

Multiplayer shows how the issue propagated through the system and enables full-circle debugging workflows.

Jam offers lightweight recording annotation and integrations with customer support tools on higher-tier plans. This is useful for frontend debugging, but requires more setup and investment for other use cases.
Multiplayer supports rich collaboration and validation features, on all plans. Each session replay is not only full stack by default, but also supports rich annotations with sketches, comments, and notes. Notebooks allow you to auto-generate test scripts to validate fixes and regression tests, while the system dashboard allows you to automatically track your architecture over time.

Multiplayer doesn’t just tell you what broke: it gives you the tools to understand it end-to-end, fix it, validate it, and move forward with confidence..

Full circle debugging: capture, fix, validate, repeat

Designed for AI-native workflows

Multiplayer is built to give AI tools everything they need to be genuinely helpful to developers, without extra effort, rework, or guesswork.

Jam supports an MCP server, but without the extra Sentry integration (available only on higher-tier paid plans), you’re only feeding AI tools frontend session recordings. Even then, the backend data is sampled and lacks additional context like recorded notes and comments.
Every Multiplayer session replay is full stack with pre-correlated and enriched data. This context can be fed directly into copilots and IDEs, enabling developers to ask AI to “fix this bug from this session” or “implement this feature based on these requirements” with minimal prompting.

Why use Multiplayer?

Accelerate root cause analysis

With full stack session recordings, Multiplayer lets you instantly see how bugs happened in a single timeline, reducing guesswork and saving time from grepping through log files or jumping between dashboards and screens.

Build new features faster

Multiplayer gives you instant clarity into specific system behaviours, end-to-end, and allows you to annotate session recordings with comments, sketches, and new feature requirements. You can build with confidence and share effortlessly with your team (or AI coding assistant!).

Power AI tools with the data they are missing

Multiplayer turns session recordings into structured, AI-ready data packets that contain full-stack, correlated, enriched and annotated data, so that your AI tools generate more accurate fixes, tests, and feature suggestions.

Jam captures frontend bugs.

Multiplayer captures your full stack and supports every workflow.

Core differences

	Jam	Multiplayer
PRIMARY FOCUS	Debugging and customer support	Software debugging, development, testing, customer support, documentation
SDLC	Production debugging	Across the lifecycle (full stack production debugging, development, testing, support, AI workflows)
AUDIENCE	Developers and Customer Support	Developers, QA, Customer Support, PMs, end users and external partners
SESSION REPLAYS	Frontend data by default, with optional integration with Sentry to pull sampled backend data (only available in paid plans)	Full stack out of the box. Frontend data is auto-correlated with backend data, for all plans, including the free forever plan
BACKEND	Integration with Sentry (sampled data, only available in paid plans)	Backend agnostic. You can use any observability stack to route backend data to Multiplayer
AI	Native AI tool to summarize replays and explore JAM data (not including backend traces), and Jam MCP server to feed AI tools Jam recordings	MCP server to feed AI copilots and agents complete, auto-correlated and enriched context from each session. And native AI tool to quickly create notebooks.
TEAM COLLABORATION	Integrations with support tools (only available in paid plans)	😉 multi-player out of the box (e.g. collaboratively annotate session recordings)
DOCUMENTATION	List of session recordings	A living system knowledge and interactive notebooks

Core features

Feature	Jam	Multiplayer
Session replay	🟡 Only on-demand recording, through browser extension or SDK	✅ Multiple recording modes (on-demand, continuous, remote) and install options (SDK, in-app widget, browser extension)
Session recording annotation	🟡 Draw on and blur (only available on paid plans)	✅ Sketches, comments, requirements and notes (on all plans)
Full stack correlated data	🟡 Frontend data by default, with optional integration with Sentry to pull sampled backend data (only available on paid plans)	✅ Out of the box and backend agnostic
Dashboards	🔴 No.	✅ Real-time, auto-generated system map (e.g. components, dependencies, APIs, etc.)
Notebooks	🔴 No	✅ Interactive sandbox environments (for developing, testing and documenting APIs)
MCP server	✔️ Feed AI tools Jam recordings	✅ Full stack context, including annotated session recordings, for all AI workflows

Session recording features

Feature	Jam	Multiplayer
Installation method	🟡 Browser extension and SDK	✅ Browser extension, in-app widget, SDK
On-demand session recording	🟡 Only frontend data by default	✅ Full stack by default, no sampling or missing data.
Continuous session recording	🔴 No	✅ A full-stack, rolling record of your recent activity.
Auto-generated session recordings for exceptions	🔴 No	✅ Both frontend and backend exceptions and errors
Remote session recording	🔴 No	✅ Silently turn on recordings to capture and reproduce user-reported issues that lack full stack detail
Web-based applications	✔️	✅
Mobile applications	✔️	🟡 Coming soon
Session recording annotation (sketches, comments, plans)	🟡 Draw on and blur (only available on paid plans)	✅ Sketches, comments, requirements and notes (on all plans)
Masking sensitive user information	🟡 Manual blur option	✅ By default
Session recording searchability (filters, tags, search)	🟡 Frontend data by default, backend data only with Sentry integration (only available on paid plans)	✅ Searchable for full stack data (i.e. backend traces, logs, request/response and header content)
Session recording sharing	✔️	✅
Auto-generated, runnable test scripts from session recordings	🔴 No	✅️ Check out our notebooks

Session recording data

Feature	Jam	Multiplayer
User clicks + inputs	️️✔️️	✅
Page navigations + loads	️️✔️️	✅
Session metadata (device, runtime environment, browser, OS)	️️🟡 Only if jam.metadata is integrated	✅
DOM events	️️✔️️	✅
Console messages	️️✔️️	✅
Network requests	️️✔️️	✅
HTML source code	✔️	✅
Backend errors	🟡 Backend data only with Sentry integration (only available on paid plans)	✅ By default for all plans, no trace sampling, backend agnostic
Correlated distributed traces per session	🟡 Backend data only with Sentry integration (only available on paid plans)	✅ By default for all plans, no trace sampling, backend agnostic
User feedback	✔️	✅
Request / response content per session	🔴 Only with Sentry integration and only for the client request to the black box system (available in paid plans, custom config needed)	✅ Out of the box, including from inside the system components(e.g. going from one service to another), on all plans, backend agnostic
Header content per session	🔴 Only with Sentry integration and only for the client request to the black box system (available in paid plans, custom config needed)	✅ Out of the box, including from inside the system components(e.g. going from one service to another), on all plans, backend agnostic
Service and dependency maps	🔴 No	✅ Full system map (components, dependencies, APIs, etc.)
Repositories	🔴 No	✅