Open-source UXCam alternatives

Sentry is a debugging platform that helps developers detect, trace and fix problems in their applications. It collects crash reports and errors from running software, groups them into issues, and adds the context needed to understand what happened, alongside performance monitoring for slow requests and transactions.

Integration happens through official SDKs covering web, mobile, desktop, server and game platforms, from JavaScript, Python and PHP to Go, Rust, Java, Kotlin, Swift, Flutter, Unity, Unreal Engine and Godot. The server itself is a Python application built on Django, and topics also mention CSP report collection and application performance monitoring.

Sentry is source available, and its license is listed as 'Other' on GitHub rather than a standard open-source license. It can be run on your own infrastructure, and the company also operates the hosted service at sentry.io. It is used by engineering teams of all sizes as a first stop when something breaks in production.

PostHog is an open-source platform that bundles the tools product teams use to understand and improve what they ship. It captures event data, user sessions and errors in one place, and its newer self-driving mode aims to turn signals such as errors, rage clicks and failed queries into researched reports and pull requests that engineers review and merge.

The product suite includes product analytics with autocapture or manual instrumentation and SQL analysis, web analytics with a dashboard resembling Google Analytics, session replays for web and mobile, feature flags, experiments with statistical measurement, surveys, error tracking, logs, a data warehouse and a customer data platform. The back end is Python and the front end is React and TypeScript.

PostHog's repository license is listed as 'Other' on GitHub, so check which parts are open source and which are enterprise-only. It can be self-hosted, and the company also runs a managed cloud service. It suits product and engineering teams that prefer a single tool over separate analytics, flagging and replay vendors.

OpenReplay is an open-source experience platform that you host on your own infrastructure. It combines session replay, DevTools-level debugging context, product analytics and live cobrowsing, so teams can see how real users navigate, where they struggle and what errors they hit without sending sessions to a third party.

Because everything stays in your own cloud, it is pitched at teams that cannot hand customer data to an external vendor. Data can be masked, obscured or skipped at capture time before it reaches your servers, and a private mode redacts everything by default. A lightweight tracker sends data asynchronously to limit the impact on page performance, and SDKs cover frameworks such as React, Angular, Vue, Svelte, Next.js and React Native.

The README states it can be self-hosted for free on AWS, GCP, Azure and other platforms. The repository lists its licence as Other and its topics also reference feature flags, web vitals and real-user monitoring, so it spans debugging, product and support use cases.

Measure helps mobile teams monitor and fix crashes, ANRs, bugs and performance problems in their apps. It is presented as an open-source alternative to Firebase Crashlytics, with SDKs for Android, iOS, Flutter and React Native so that teams can collect data from the platforms they ship on.

Features include session replays with automatic tracking of clicks, navigation and network calls, crash and ANR reports with screenshots and stack traces, performance traces and spans, bug reports triggered by a device shake, user journeys, network performance views and an app health dashboard. Adaptive capture lets you change data collection settings without releasing an app update, and a Measure Agent lets you investigate issues in natural language from Slack or a coding agent via MCP.

You can sign up to Measure Cloud or self-host it on your own servers. The project is licensed under Apache-2.0 and has a TypeScript codebase on the dashboard side, with Kotlin, Swift and Dart SDK components. It suits mobile development teams who want crash reporting and observability with the option to keep data on infrastructure they control.