Highlight – Debug customer-facing issues with replay
Hey HN, I’m Jay, a co-founder at Highlight and a YC alum; excited to share our replay-based debugging tool! TLDR; if you're using a tool like Fullstory for debugging, or you have trouble understanding the actual impact of your errors (e.g. in sentry), you should give us a try! We built Highlight because we constantly found ourselves flooded with errors and support tickets with very little context on why these issues occurred. To make matters worse, there was never an easy (and less annoying way) of reproducing these errors, other than by asking users to send screenshots, videos, etc.…
In plain words
Highlight is a debugging tool that uses session replay to help development teams reproduce and understand customer-facing errors. It captures user interactions and context around issues, eliminating the need for manual screenshots or videos from users. The tool is designed for teams drowning in error reports and support tickets who want better visibility into actual user impact and UX problems without extensive manual investigation.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hey HN, I’m Jay, a co-founder at Highlight and a YC alum; excited to share our replay-based debugging tool! TLDR; if you're using a tool like Fullstory for debugging, or you have trouble understanding the actual impact of your errors (e.g. in sentry), you should give us a try! We built Highlight because we constantly found ourselves flooded with errors and support tickets with very little context on why these issues occurred. To make matters worse, there was never an easy (and less annoying way) of reproducing these errors, other than by asking users to send screenshots, videos, etc. Frankly, this wasn’t a good use of anyone’s time! At the same time, the more product-oriented folks on our team wished that they could better understand UX flows and user frustrations without having to do unnecessary user interviews. Highlight addresses both of these pain points by giving teams reproducibility out of the box! Our platform is installable with a single Javascript snippet and makes it easy and quick to search for relevant user sessions. For product folks, it’s easy to filter down to sessions where users performed specific actions, such as using a newly released feature. For developers, when an error or support ticket shows up in their inbox, they know exactly where to start debugging Today, we’re focusing on session replay and monitoring, but our goal is to expand to an entire suite of debugging tooling focused on helping teams find and fix issues faster. Some features on our roadmap include live session viewing, backend error monitoring, and much more!
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