Systems | Development | Analytics | API | Testing

Annotations are a way to draw, write, and comment directly on top of full-stack session recordings. Now, instead of sketching ideas in isolation, teams can mark up actual user sessions, highlighting specific UI elements, API calls, and backend traces that need attention. Whiteboarding tools are indispensable in system design for visually conveying concepts, ideas, and rough plans. They tap into our natural preference for visual learning.

Most modern software systems are distributed systems, but designing a distributed system isn’t easy. Here are six best practices to get you started. Most modern software systems are distributed systems. Designing and maintaining a distributed system, however, isn't easy. There are so many areas to master: communication, security, reliability, concurrency, and, crucially, observability and debugging.

Multiplayer transforms the chaos of support tickets, eliminating manual work, sloppy hand-offs, and grepping through log files. End-user support has always been messy. Manual steps, tool-switching, and scattered communication turn what should be a simple fix into a marathon of frustration. Tickets feel like scavenger hunts: everyone’s searching for details, logs, screenshots, or that missing repro step. Developers are left waiting on context that never arrives.

Multiplayer gives your team full stack session recordings so you have all the context you need to fix bugs, build features, and supercharge your AI tools. This is all the data you wish was easy to get from your APM tool and screen recorder - all in one place.

Full stack session recordings capture everything that matters without impacting your application performance or adding unnecessary overhead. Traditional continuous recording tools and APM platforms take the same brute-force approach: capture everything. Every session, every log, every metric, whether you need it or not. That flood of data creates its own problems: high storage costs, constant filtering and sampling, and hours wasted sifting for the signal inside the noise.

Add sketches, notes, and requirements directly to your full stack session recordings. Highlight interactions, API calls, or traces and turn them into actionable development plans or AI prompts. Traditional session replay tools give you a window into what the user saw. A few let you blur sensitive data or leave a quick sketch. Some rely on third-party integrations to manage annotations at all.

Multiplayer MCP Server streams full stack session data into your IDE. Give AI tools complete context—frontend, backend, annotations—for accurate fixes.

Record sessions in the background: Multiplayer saves recordings the moment bugs or anomalies occur, making it effortless to capture elusive, hard-to-reproduce problems. Most session recording tools force you into a tradeoff.

Multiplayer is the only session recorder that combines frontend replays with unsampled backend traces, stitched together automatically. You don’t have to choose between drowning in noise or missing the critical data. Backend tracing is the backbone of understanding how modern distributed systems behave. Each request generates a chain of spans as it travels through your services and components: what happened, how long it took, and whether it failed.

Turn a debugging session into a reproducible test script. It’s like getting a unit test written by the bug itself. Minus the guesswork, setup, and manual scripting. With one click, Multiplayer now turns debugging sessions into test scripts that capture.