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Everyone claims to be magical.
Replay is actually magical!

Replay is one of those rare experiences that feels incredibly simple and obvious, and at the same time, profoundly deep and complex.
Guillermo Rauch image

It's a well known fact that engineers want high quality bug reports, with extensive details, reproduction steps, etc. Yet we have no tools for this other than praying that people follow a Markdown issue template. I think this tool has a very good chance of creating a new category around collaborative debugging. Well done Jason!

Guillermo Rauch

CEO of Vercel
Dan Abramov image

Replay.io is galaxy brain tooling. Real gamechanger.

Dan Abramov

React Maintainer
Tatiana Mac image

I’m really excited to try this tool out, especially as I love any tool that can help to debunk the idea that debugging should or even can effectively happen alone.

Tatiana Mac

Engineer and OSS maintainer at Self-Defined Dictionary
Kevin Ghadyani image

I first saw Replay at ReactConf in 2019 and came away thinking "this is way cooler than anything I saw at the conference.

Kevin Ghadyani

JavaScript Engineer
Amjad Masad image

Programmers typically reach for debuggers when they run out of ideas on how to fix their code. Now coders reach for time-travel debugging to understand their programs and not just when they want fix a bug.

Amjad Masad

Replit Founder
Mark Probst image

We've been using Replay at glideapps.com for a few months, and it's been a huge help in finding and fixing bugs. Our support team can record their reproduction of a bug and engineering can debug the replay at any later time to find the issue. Time-travel is also incredible.

Mark Probst

CTO at Glideapps
Cameron Yick image

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 an ideal power tool for learning how a system works.

Cameron Yick

Senior Software Engineer at DataDog
Jean Yang image

Awesome to see time-travel debugging in such a usable, intuitive form!

Jean Yang

Founder and CEO of Akita Software
David Khourshid image

Replay is the obvious next step for the future of collaboratively inspecting and debugging applications. This is going to be infinitely helpful for maintaining open-source projects, especially when reproducing bugs is difficult otherwise.

David Khourshid

Founder of Stately.ai
Guillermo Rauch image

It's a well known fact that engineers want high quality bug reports, with extensive details, reproduction steps, etc. Yet we have no tools for this other than praying that people follow a Markdown issue template. I think this tool has a very good chance of creating a new category around collaborative debugging. Well done Jason!

Guillermo Rauch

CEO of Vercel
Cameron Yick image

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 an ideal power tool for learning how a system works.

Cameron Yick

Senior Software Engineer at DataDog
Amjad Masad image

Programmers typically reach for debuggers when they run out of ideas on how to fix their code. Now coders reach for time-travel debugging to understand their programs and not just when they want fix a bug.

Amjad Masad

Replit Founder
Tatiana Mac image

I’m really excited to try this tool out, especially as I love any tool that can help to debunk the idea that debugging should or even can effectively happen alone.

Tatiana Mac

Engineer and OSS maintainer at Self-Defined Dictionary
David Khourshid image

Replay is the obvious next step for the future of collaboratively inspecting and debugging applications. This is going to be infinitely helpful for maintaining open-source projects, especially when reproducing bugs is difficult otherwise.

David Khourshid

Founder of Stately.ai
Kevin Ghadyani image

I first saw Replay at ReactConf in 2019 and came away thinking "this is way cooler than anything I saw at the conference.

Kevin Ghadyani

JavaScript Engineer
Dan Abramov image

Replay.io is galaxy brain tooling. Real gamechanger.

Dan Abramov

React Maintainer
Jean Yang image

Awesome to see time-travel debugging in such a usable, intuitive form!

Jean Yang

Founder and CEO of Akita Software
Mark Probst image

We've been using Replay at glideapps.com for a few months, and it's been a huge help in finding and fixing bugs. Our support team can record their reproduction of a bug and engineering can debug the replay at any later time to find the issue. Time-travel is also incredible.

Mark Probst

CTO at Glideapps
Guillermo Rauch image

It's a well known fact that engineers want high quality bug reports, with extensive details, reproduction steps, etc. Yet we have no tools for this other than praying that people follow a Markdown issue template. I think this tool has a very good chance of creating a new category around collaborative debugging. Well done Jason!

Guillermo Rauch

CEO of Vercel
Kevin Ghadyani image

I first saw Replay at ReactConf in 2019 and came away thinking "this is way cooler than anything I saw at the conference.

Kevin Ghadyani

JavaScript Engineer
Cameron Yick image

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 an ideal power tool for learning how a system works.

Cameron Yick

Senior Software Engineer at DataDog
Dan Abramov image

Replay.io is galaxy brain tooling. Real gamechanger.

Dan Abramov

React Maintainer
Amjad Masad image

Programmers typically reach for debuggers when they run out of ideas on how to fix their code. Now coders reach for time-travel debugging to understand their programs and not just when they want fix a bug.

Amjad Masad

Replit Founder
Jean Yang image

Awesome to see time-travel debugging in such a usable, intuitive form!

Jean Yang

Founder and CEO of Akita Software
Tatiana Mac image

I’m really excited to try this tool out, especially as I love any tool that can help to debunk the idea that debugging should or even can effectively happen alone.

Tatiana Mac

Engineer and OSS maintainer at Self-Defined Dictionary
Mark Probst image

We've been using Replay at glideapps.com for a few months, and it's been a huge help in finding and fixing bugs. Our support team can record their reproduction of a bug and engineering can debug the replay at any later time to find the issue. Time-travel is also incredible.

Mark Probst

CTO at Glideapps
David Khourshid image

Replay is the obvious next step for the future of collaboratively inspecting and debugging applications. This is going to be infinitely helpful for maintaining open-source projects, especially when reproducing bugs is difficult otherwise.

David Khourshid

Founder of Stately.ai
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