The web has evolved.
Finally, testing has too.

Fast, easy and reliable testing for anything that runs in a browser.

orDownload now

Install Cypress for Mac, Linux, or Windows, then get started.

A complete end-to-end testing experience.

Install the Cypress Test Runner and write tests locally.

Set up tests

Installing Cypress is simple. No dependencies, extra downloads, or changes to your code required.

Write tests

Write tests easily and quickly, and watch them execute in real time as you build your web application.

Test runner

Build up a suite of CI tests, record them and gain powerful insights

Run tests

Debugging your tests in CI is as easy as running tests locally. With built in parallelization and load balancing.

Record tests

Record CI test data, screenshots and video - and view aggregated, next-level insights in your Dashboard.

Dashboard Service

Test your code, not your patience.

Cypress is the new standard in front-end testing that every developer and QA engineer needs.

Developer-friendly

Cypress has been made specifically for developers and QA engineers, to help them get more done.

Open source

Cypress benefits from our amazing open source community - and our tools are evolving better and faster than if we worked on them alone.

Built from the ground up

Cypress is based on a completely new architecture. No more Selenium. Lots more power.

Check out the code

Star

What sets Cypress apart?

Time travel

Cypress takes snapshots as your tests run. Simply hover over commands in the Command Log to see exactly what happened at each step.

Debuggability

Stop guessing why your tests are failing. Debug directly from familiar tools like Chrome DevTools. Our readable errors and stack traces make debugging lightning fast.

Real time reloads

Cypress automatically reloads whenever you make changes to your tests. See commands execute in real time in your app.

Automatic waiting

Never add waits or sleeps to your tests. Cypress automatically waits for commands and assertions before moving on. No more async hell.

See more features

Do you Cypress? Say it!

Ernesto Pye@ErnestoPye

really impressed with @Cypress_io. it's a great tool in itself, but the documentation is ✨stellar✨i'm sold.
— Ernesto Pye (@ErnestoPye) September 19, 2019

See Ernesto Pye other Tweets

Karim Alibhai@KarimSaNet

E2E testing with @Cypress_io is so much fun! It’s an incredible tool.
— Karim Alibhai (@KarimSaNet) September 7, 2019

See Karim Alibhai other Tweets

King of the Peanut Butter@pnutbutterking

I'll just leave this right here ...
Thanks to @Cypress_io, I no longer hate development testing!
— King of the Peanut Butter (@pnutbutterking) July 17, 2019

See King of the Peanut Butter other Tweets

Dhaval Patel@dhavalpatel

Don't think I've experienced joy using a testing framework until I came across @Cypress_io so easy, simple, intuitive and troubleshooting is a breeze. I've tried selenium and puppeteer but this is hands down what devs need especially when working alone, every min saved is gold!
— Dhaval Patel (@dhavalpatel) July 15, 2019

See Dhaval Patel other Tweets

Justin Noel@JustinNoelDev

Watching an entire @Cypress_io E2E testing sequence of an Ionic Framework app is mesmerizing. Cypress is incredibly powerful, yet easy to use. They've also got the best docs and tutorials in the tech industry. pic.twitter.com/YfsbbHBtmd
— Justin Noel (@JustinNoelDev) September 19, 2019

See Justin Noel other Tweets

Carlos Lantigua@CodeLantigua

Writing tests with @Cypress_io might just become my new favorite thing to do for a while. I'm able to pick it up and start testing right right without any hassle at all. Wish more things in tech worked like this. pic.twitter.com/hmX0FBU3Du
— Carlos Lantigua (@CodeLantigua) August 25, 2019

See Carlos Lantigua other Tweets

Jesse Einfalt@jessebuilds

@Cypress_io HANDS DOWN is my favorite E2E testing tool. It’s lit 🔥🔥🔥
— Jesse Einfalt (@jessebuilds) September 13, 2019

See Jesse Einfalt other Tweets

Rohit Kadam@r0hitkadam

Loving @Cypress_io ❤️ reliability, speed 🚀 it gives is just awesome
— Rohit Kadam (@r0hitkadam) June 20, 2019

See Rohit Kadam other Tweets

Ignacio Villanueva 🏳️‍🌈@IgnaciodeNuevo

Making my first E2E test.

✅ Done@Cypress_io API and docs are lovely 😊
— Ignacio Villanueva 🏳️‍🌈 (@IgnaciodeNuevo) June 25, 2019

See Ignacio Villanueva 🏳️‍🌈 other Tweets

Jeff Wells@jeffmwells

I spent today experimenting with @Cypress_io and navigating the docs and was thoroughly impressed with the tool! I’m a fan in just a few hours.
— Jeff Wells (@jeffmwells) August 13, 2019

See Jeff Wells other Tweets

DevCast@devcastcode

What's NOT to love about @Cypress_io? 🤷‍♂️

Excellent documentation and tutorials that make you productive in under 30 minutes. A better way to integrate #dev and QA teams. Time travel with snapshots.

🔥 #Testing is now something to look forward to (seriously)! 🔥
— DevCast (@devcastcode) October 24, 2019

See DevCast other Tweets

Irksome Shamus@glinesbdev

Replaced Protractor, Karma and Jasmine in Angular all for @Cypress_io. Been loving the testing experience and am not planning on looking back. Thanks for making testing great again! ™️
— Irksome Shamus (@glinesbdev) June 11, 2019

See Irksome Shamus other Tweets

Tristan Denyer@tristandenyer

Every day that I use @Cypress_io I wonder where this testing framework has been all this time. Can't recommend it enough. 💯
— Tristan Denyer (@tristandenyer) May 23, 2019

See Tristan Denyer other Tweets

Jonathan [ ~lapfur-mogpet | THB ]@zobroj

Weird that I'm excited by end-to-end integration testing. But @Cypress_io has just nailed it with the UX for a developer tool. Bravo.
— Jonathan [ ~lapfur-mogpet | THB ] (@zobroj) August 23, 2019

See Jonathan [ ~lapfur-mogpet | THB ] other Tweets

Zubin Pratap@ZubinPratap

@Cypress_io spent a day writing tests. am a test noob. blown away. finally TDD makes sense because cypress makes it so quick n simple.
— Zubin Pratap (@ZubinPratap) June 7, 2019

See Zubin Pratap other Tweets

Manish@thatonedroid

Sure @Cypress_io is easy to setup and get running.

But it sure saves your ass after a major refactor. Having the confidence everything works as before is 🔥.
— Manish (@thatonedroid) May 30, 2019

See Manish other Tweets

Sunil Sandhu@sunilsandhu

I just tried out @Cypress_io for the first time and found myself productve within about 10mins. My pseudocode suggestions for how it would work were also exactly how it worked! eg. cy.get('button').contains('complete').click();

Cypress may just be the best e2e tool out there!
— Sunil Sandhu (@sunilsandhu) May 22, 2019

See Sunil Sandhu other Tweets

Mitesh@jainmitesh09

Using @Cypress_io is a pure joy!
— Mitesh (@jainmitesh09) August 22, 2019

See Mitesh other Tweets

Ash@ashtonkchristie

Been looking for a testing solution for our QA process and found @Cypress_io. This thing is brilliant🤯
— Ash (@ashtonkchristie) July 2, 2019

See Ash other Tweets

Karen Cubero 🤘🏻@kcubero27

I just felt in love with @Cypress_io The first time I test a real application and in just a few minutes I could test an entire functionality 🥰 I also love how easy is to read the code. Cmon, to be honest, even a non-programmer could read it!
— Karen Cubero 🤘🏻 (@kcubero27) September 20, 2019

See Karen Cubero 🤘🏻 other Tweets

Magnus Stråle@magnusstrale

@Cypress_io is the first end-to-end test tool that didn't test my patience. Time from install to first "real" test running was three hours (including a coffee break).
— Magnus Stråle (@magnusstrale) September 25, 2019

See Magnus Stråle other Tweets

Luca Fabbri@keul

After spent some times on it I can finally agree with The Internet and say that @Cypress_io really rocks.
— Luca Fabbri (@keul) August 30, 2019

See Luca Fabbri other Tweets

Sam Samskies 🗝⚡️💯@SamSamskies

The @Cypress_io docs are possibly the best docs ever written 👏
— Sam Samskies 🗝⚡️💯 (@SamSamskies) October 6, 2019

See Sam Samskies 🗝⚡️💯 other Tweets

Tomasz Łakomy@tlakomy

If you’re not using @Cypress_io in your project you’re missing out.

This not my subjective opinion, it’s a fact
— Tomasz Łakomy (@tlakomy) July 27, 2019

See Tomasz Łakomy other Tweets

David East@_davideast

Holy crap. @Cypress_io is really good.
— David East (@_davideast) October 22, 2019

See David East other Tweets

Sergio Brito@yacaFx

I need to say it... I love @Cypress_io A really awesome tool!
— Sergio Brito (@yacaFx) October 14, 2019

See Sergio Brito other Tweets

Andi H 💭@Twittfort

Yesterday I got an introduction into @Cypress_io by @marcoemrich. And I am still excited and can’t wait for my kids to go to bed this evening, so I can toy with it again. 😬
— Andi H 💭 (@Twittfort) October 26, 2019

See Andi H 💭 other Tweets

Trevor Pierce@1Copenut

@Cypress_io I’ve tried more than a few e2e test runners. I’ve never configured one, written my first test, and verified it in 15 minutes until I tried Cypress. Can’t wait to see what else it can do.
— Trevor Pierce (@1Copenut) October 12, 2019

See Trevor Pierce other Tweets

Alvin Crespo 👨‍💻 🎮@alvincrespo

Developing an app for the better part of this year. Decided to update all outdated deps.

After an hour, I have achieved success! 🎆🎆🎆

It's amazing the trust you can build with a solid testing approach using @Cypress_io. 🙏
— Alvin Crespo 👨‍💻 🎮 (@alvincrespo) October 19, 2019

See Alvin Crespo 👨‍💻 🎮 other Tweets

Kevin Peters@_Atze

Today I - as a backend guy - wrote my first end-to-end test with @Cypress_io. I feel much safer in the frontend than ever before. 💪
— Kevin Peters (@_Atze) October 31, 2019

See Kevin Peters other Tweets

Luke Marsh@luke_marsh_

Absolutely loving @Cypress_io right now. It’s never been this easy to write browser tests! #automation #javascript
— Luke Marsh (@luke_marsh_) September 10, 2019

See Luke Marsh other Tweets

M. Langhard@Langhard

finally came around to use @cypress_io
darn it gals and guys, it's really really good! 👏
— M. Langhard (@Langhard) June 28, 2019

See M. Langhard other Tweets

Andrew Durber@AndrewDurber

300 lines of integration tests completely made redundant by 30 lines of @Cypress_io tests. Hot damn what a time to be alive!
— Andrew Durber (@AndrewDurber) October 5, 2019

See Andrew Durber other Tweets

Jared Mortenson@cjaredm

Just setup @Cypress_io on my product I just launched. I was breaking something everything I made a fix. Got Cypress going in no time so I could ensure I'm not breaking things before I push to prod. Amazing how fast it is, and easy to get legit tests going. 🤯 pic.twitter.com/n0Y9q7PsxK
— Jared Mortenson (@cjaredm) May 30, 2019

See Jared Mortenson other Tweets

Its Kyle Yo!@its_kyle_yoo

Oh, SNAP! I never thought I'd take the time to _actually_ put tests into ANY of my personal projects!

Thanks, @cypress_io for being the opposite of a headache <3 #LazyDev #webdev #webdevelopment
— Its Kyle Yo! (@its_kyle_yoo) April 15, 2019

See Its Kyle Yo! other Tweets

tommy george@tommygeorge

Ya’llllllllll

I (finally!) set up and wrote some initial @Cypress_io tests for an existing project.

I literally want to go write more! SO helpful!
— tommy george (@tommygeorge) November 1, 2019

See tommy george other Tweets

Ernesto Pye@ErnestoPye

really impressed with @Cypress_io. it's a great tool in itself, but the documentation is ✨stellar✨i'm sold.
— Ernesto Pye (@ErnestoPye) September 19, 2019

See Ernesto Pye other Tweets

Karim Alibhai@KarimSaNet

E2E testing with @Cypress_io is so much fun! It’s an incredible tool.
— Karim Alibhai (@KarimSaNet) September 7, 2019

See Karim Alibhai other Tweets

King of the Peanut Butter@pnutbutterking

I'll just leave this right here ...
Thanks to @Cypress_io, I no longer hate development testing!
— King of the Peanut Butter (@pnutbutterking) July 17, 2019

See King of the Peanut Butter other Tweets

Dhaval Patel@dhavalpatel

Don't think I've experienced joy using a testing framework until I came across @Cypress_io so easy, simple, intuitive and troubleshooting is a breeze. I've tried selenium and puppeteer but this is hands down what devs need especially when working alone, every min saved is gold!
— Dhaval Patel (@dhavalpatel) July 15, 2019

See Dhaval Patel other Tweets

Justin Noel@JustinNoelDev

Watching an entire @Cypress_io E2E testing sequence of an Ionic Framework app is mesmerizing. Cypress is incredibly powerful, yet easy to use. They've also got the best docs and tutorials in the tech industry. pic.twitter.com/YfsbbHBtmd
— Justin Noel (@JustinNoelDev) September 19, 2019

See Justin Noel other Tweets

Carlos Lantigua@CodeLantigua

Writing tests with @Cypress_io might just become my new favorite thing to do for a while. I'm able to pick it up and start testing right right without any hassle at all. Wish more things in tech worked like this. pic.twitter.com/hmX0FBU3Du
— Carlos Lantigua (@CodeLantigua) August 25, 2019

See Carlos Lantigua other Tweets

Jesse Einfalt@jessebuilds

@Cypress_io HANDS DOWN is my favorite E2E testing tool. It’s lit 🔥🔥🔥
— Jesse Einfalt (@jessebuilds) September 13, 2019

See Jesse Einfalt other Tweets

Rohit Kadam@r0hitkadam

Loving @Cypress_io ❤️ reliability, speed 🚀 it gives is just awesome
— Rohit Kadam (@r0hitkadam) June 20, 2019

See Rohit Kadam other Tweets

Ignacio Villanueva 🏳️‍🌈@IgnaciodeNuevo

Making my first E2E test.

✅ Done@Cypress_io API and docs are lovely 😊
— Ignacio Villanueva 🏳️‍🌈 (@IgnaciodeNuevo) June 25, 2019

See Ignacio Villanueva 🏳️‍🌈 other Tweets

Jeff Wells@jeffmwells

I spent today experimenting with @Cypress_io and navigating the docs and was thoroughly impressed with the tool! I’m a fan in just a few hours.
— Jeff Wells (@jeffmwells) August 13, 2019

See Jeff Wells other Tweets

DevCast@devcastcode

What's NOT to love about @Cypress_io? 🤷‍♂️

Excellent documentation and tutorials that make you productive in under 30 minutes. A better way to integrate #dev and QA teams. Time travel with snapshots.

🔥 #Testing is now something to look forward to (seriously)! 🔥
— DevCast (@devcastcode) October 24, 2019

See DevCast other Tweets

Irksome Shamus@glinesbdev

Replaced Protractor, Karma and Jasmine in Angular all for @Cypress_io. Been loving the testing experience and am not planning on looking back. Thanks for making testing great again! ™️
— Irksome Shamus (@glinesbdev) June 11, 2019

See Irksome Shamus other Tweets

Tristan Denyer@tristandenyer

Every day that I use @Cypress_io I wonder where this testing framework has been all this time. Can't recommend it enough. 💯
— Tristan Denyer (@tristandenyer) May 23, 2019

See Tristan Denyer other Tweets

Jonathan [ ~lapfur-mogpet | THB ]@zobroj

Weird that I'm excited by end-to-end integration testing. But @Cypress_io has just nailed it with the UX for a developer tool. Bravo.
— Jonathan [ ~lapfur-mogpet | THB ] (@zobroj) August 23, 2019

See Jonathan [ ~lapfur-mogpet | THB ] other Tweets

Zubin Pratap@ZubinPratap

@Cypress_io spent a day writing tests. am a test noob. blown away. finally TDD makes sense because cypress makes it so quick n simple.
— Zubin Pratap (@ZubinPratap) June 7, 2019

See Zubin Pratap other Tweets

Manish@thatonedroid

Sure @Cypress_io is easy to setup and get running.

But it sure saves your ass after a major refactor. Having the confidence everything works as before is 🔥.
— Manish (@thatonedroid) May 30, 2019

See Manish other Tweets

Sunil Sandhu@sunilsandhu

I just tried out @Cypress_io for the first time and found myself productve within about 10mins. My pseudocode suggestions for how it would work were also exactly how it worked! eg. cy.get('button').contains('complete').click();

Cypress may just be the best e2e tool out there!
— Sunil Sandhu (@sunilsandhu) May 22, 2019

See Sunil Sandhu other Tweets

Mitesh@jainmitesh09

Using @Cypress_io is a pure joy!
— Mitesh (@jainmitesh09) August 22, 2019

See Mitesh other Tweets

Ash@ashtonkchristie

Been looking for a testing solution for our QA process and found @Cypress_io. This thing is brilliant🤯
— Ash (@ashtonkchristie) July 2, 2019

See Ash other Tweets

Karen Cubero 🤘🏻@kcubero27

I just felt in love with @Cypress_io The first time I test a real application and in just a few minutes I could test an entire functionality 🥰 I also love how easy is to read the code. Cmon, to be honest, even a non-programmer could read it!
— Karen Cubero 🤘🏻 (@kcubero27) September 20, 2019

See Karen Cubero 🤘🏻 other Tweets

Magnus Stråle@magnusstrale

@Cypress_io is the first end-to-end test tool that didn't test my patience. Time from install to first "real" test running was three hours (including a coffee break).
— Magnus Stråle (@magnusstrale) September 25, 2019

See Magnus Stråle other Tweets

Luca Fabbri@keul

After spent some times on it I can finally agree with The Internet and say that @Cypress_io really rocks.
— Luca Fabbri (@keul) August 30, 2019

See Luca Fabbri other Tweets

Sam Samskies 🗝⚡️💯@SamSamskies

The @Cypress_io docs are possibly the best docs ever written 👏
— Sam Samskies 🗝⚡️💯 (@SamSamskies) October 6, 2019

See Sam Samskies 🗝⚡️💯 other Tweets

Tomasz Łakomy@tlakomy

If you’re not using @Cypress_io in your project you’re missing out.

This not my subjective opinion, it’s a fact
— Tomasz Łakomy (@tlakomy) July 27, 2019

See Tomasz Łakomy other Tweets

David East@_davideast

Holy crap. @Cypress_io is really good.
— David East (@_davideast) October 22, 2019

See David East other Tweets

Sergio Brito@yacaFx

I need to say it... I love @Cypress_io A really awesome tool!
— Sergio Brito (@yacaFx) October 14, 2019

See Sergio Brito other Tweets

Andi H 💭@Twittfort

Yesterday I got an introduction into @Cypress_io by @marcoemrich. And I am still excited and can’t wait for my kids to go to bed this evening, so I can toy with it again. 😬
— Andi H 💭 (@Twittfort) October 26, 2019

See Andi H 💭 other Tweets

Trevor Pierce@1Copenut

@Cypress_io I’ve tried more than a few e2e test runners. I’ve never configured one, written my first test, and verified it in 15 minutes until I tried Cypress. Can’t wait to see what else it can do.
— Trevor Pierce (@1Copenut) October 12, 2019

See Trevor Pierce other Tweets

Alvin Crespo 👨‍💻 🎮@alvincrespo

Developing an app for the better part of this year. Decided to update all outdated deps.

After an hour, I have achieved success! 🎆🎆🎆

It's amazing the trust you can build with a solid testing approach using @Cypress_io. 🙏
— Alvin Crespo 👨‍💻 🎮 (@alvincrespo) October 19, 2019

See Alvin Crespo 👨‍💻 🎮 other Tweets

Kevin Peters@_Atze

Today I - as a backend guy - wrote my first end-to-end test with @Cypress_io. I feel much safer in the frontend than ever before. 💪
— Kevin Peters (@_Atze) October 31, 2019

See Kevin Peters other Tweets

Luke Marsh@luke_marsh_

Absolutely loving @Cypress_io right now. It’s never been this easy to write browser tests! #automation #javascript
— Luke Marsh (@luke_marsh_) September 10, 2019

See Luke Marsh other Tweets

M. Langhard@Langhard

finally came around to use @cypress_io
darn it gals and guys, it's really really good! 👏
— M. Langhard (@Langhard) June 28, 2019

See M. Langhard other Tweets

Andrew Durber@AndrewDurber

300 lines of integration tests completely made redundant by 30 lines of @Cypress_io tests. Hot damn what a time to be alive!
— Andrew Durber (@AndrewDurber) October 5, 2019

See Andrew Durber other Tweets

Jared Mortenson@cjaredm

Just setup @Cypress_io on my product I just launched. I was breaking something everything I made a fix. Got Cypress going in no time so I could ensure I'm not breaking things before I push to prod. Amazing how fast it is, and easy to get legit tests going. 🤯 pic.twitter.com/n0Y9q7PsxK
— Jared Mortenson (@cjaredm) May 30, 2019

See Jared Mortenson other Tweets

Its Kyle Yo!@its_kyle_yoo

Oh, SNAP! I never thought I'd take the time to _actually_ put tests into ANY of my personal projects!

Thanks, @cypress_io for being the opposite of a headache <3 #LazyDev #webdev #webdevelopment
— Its Kyle Yo! (@its_kyle_yoo) April 15, 2019

See Its Kyle Yo! other Tweets

tommy george@tommygeorge

Ya’llllllllll

I (finally!) set up and wrote some initial @Cypress_io tests for an existing project.

I literally want to go write more! SO helpful!
— tommy george (@tommygeorge) November 1, 2019

See tommy george other Tweets

Ernesto Pye@ErnestoPye

really impressed with @Cypress_io. it's a great tool in itself, but the documentation is ✨stellar✨i'm sold.
— Ernesto Pye (@ErnestoPye) September 19, 2019

See Ernesto Pye other Tweets

Karim Alibhai@KarimSaNet

E2E testing with @Cypress_io is so much fun! It’s an incredible tool.
— Karim Alibhai (@KarimSaNet) September 7, 2019

See Karim Alibhai other Tweets

King of the Peanut Butter@pnutbutterking

I'll just leave this right here ...
Thanks to @Cypress_io, I no longer hate development testing!
— King of the Peanut Butter (@pnutbutterking) July 17, 2019

See King of the Peanut Butter other Tweets

Dhaval Patel@dhavalpatel

Don't think I've experienced joy using a testing framework until I came across @Cypress_io so easy, simple, intuitive and troubleshooting is a breeze. I've tried selenium and puppeteer but this is hands down what devs need especially when working alone, every min saved is gold!
— Dhaval Patel (@dhavalpatel) July 15, 2019

See Dhaval Patel other Tweets

Justin Noel@JustinNoelDev

Watching an entire @Cypress_io E2E testing sequence of an Ionic Framework app is mesmerizing. Cypress is incredibly powerful, yet easy to use. They've also got the best docs and tutorials in the tech industry. pic.twitter.com/YfsbbHBtmd
— Justin Noel (@JustinNoelDev) September 19, 2019

See Justin Noel other Tweets

Carlos Lantigua@CodeLantigua

Writing tests with @Cypress_io might just become my new favorite thing to do for a while. I'm able to pick it up and start testing right right without any hassle at all. Wish more things in tech worked like this. pic.twitter.com/hmX0FBU3Du
— Carlos Lantigua (@CodeLantigua) August 25, 2019

See Carlos Lantigua other Tweets

These companies are already testing better with Cypress:

The web has evolved.Finally, testing has too.

Fast, easy and reliable testing for anything that runs in a browser.

A complete end-to-end testing experience.

Install the Cypress Test Runner and write tests locally.

Set up tests

Write tests

Build up a suite of CI tests, record them and gain powerful insights

Run tests

Record tests

Test your code, not your patience.

Developer-friendly

Open source

Built from the ground up

What sets Cypress apart?

Time travel

Debuggability

Real time reloads

Automatic waiting

Do you Cypress? Say it!

Read more about why people love Cypress here.

These companies are already testing better with Cypress:

The web has evolved.
Finally, testing has too.