Replay - Your time travel debugger

Love it - saved us so much time in debugging - Jason and his team are super helpful :)

Congrats on the launch! Amazing product and team, so excited to see this live!

We use Replay at Reclaim.ai to help us chase down gnarly React state bugs. It's such an awesome way to share debug data + video recording to developers. Keep up the great work!

Just... wow!!

I'm increasingly boggled by how much time we spend discussing how to write new code, when the majority of engineering time is spent analyzing existing behavior + reading existing code. Replay is one of the most innovative tools in the space of code-reading that I've seen in a while. The time-travel debugging on its own would make an excellent product, but the team didn't stop there. They put tremendous effort into going the extra mile and making the collaborative / narrative building very smooth and natural so that the tool would be useful to share with designers, PMs, and anyone else interested in testing the user experience of a product. I've been following the Replay team since late winter 2021, and very excited to see that this is finally generally available! By granting the power to inspect your app behavior in the context of the source code without making you wait for code to recompile, Replay is an ideal power-tool for learning how a system works. I look forward to the day (10 years out?) when this style of debugging is natural and available to every mainstream programming language.

Whoa, this looks amazing!

you guys, this is really incredible. this is docker level technical innovation. I want this in every programming language and at every step of the development toolchain. how easy would it be to track down a race condition in a flaky test if I could capture it once in a recording and replay it at my leisure? the possibilities are very exciting, and I really look forward to seeing how it influences the future of development. btw, one idea that would be amazing to see is if I could retroactively capture something that happened in the browser when I wasn't recording. so basically, keep a recording going in the background at all times, but only hold onto the last minute or so in memory, and if something surprising happens I can click a button and save that last minute. similar to how modern game consoles let players retroactively record the last thirty seconds or so of gameplay when something entertaining happens. this would be an absolute game changer for manual testing. you never know when you'll stumble across a bug, and often times you don't even know how to recreate it.

Time travel while debugging. Hell, yes! I've been watching Replay take shape from the very early days and was already hugely impressed back then. Wow — this release is a game-changer. As the former Director of Platform Relations at Firefox, I’ve experienced a decade of working on browser engines and web standards. I can confidently say that Replay will change the way teams engineer their code and collaborate across the entire organization. Nice work, @jasonlaster11 and team...

If this really makes debugging and collaborating on code significantly better *and* it finds adoption, then this is a billion dollar business.

I saw a demo of Replay a while back, and my mind was blown. How was this possible?? I had never seen anything quite like it before. Being able to go back and replay exactly what was happening when the bug occurred is such a fantastic idea that has the power to significantly reduce the amount of time required to debug tricky bugs, and it's implemented very well in Replay. Congrats on the release!