QA runs itself now.
Go build what matters.

Ranger is the always-on AI QA platform where teams turn big ideas into real products

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Trusted by the fastest-growing teams
Hex
Suno
Tennr
Clay
Delphi
Surge
Unstructured
Legion
WHY RANGER?

Coverage that keeps up.

If your product outgrew your test process, meet Ranger.
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A
The problem: velocity broke your test process
Manual QA isn't just inefficient — it's structurally incompatible with modern product velocity.
B
The shift: coverage has to keep pace
The world is going agentic. QA should too.

Eliminate manual upkeep, brittle scripting, and repetitive triage from your workflow.
C
Our solution: full confidence
Ranger turns testing into always-on system, giving you complete coverage that scales automatically as you ship faster.
Testimonials

Software teams rely on Ranger.

"To accurately capture our models’ agentic capabilities across a variety of surfaces, we also collaborated with Ranger, a QA testing company that built a web browsing harness that enables models to perform tasks through the browser."

OpenAI o3-mini Research Paper

OpenAI o3-mini Research Paper

@

“Ranger has an innovative approach to testing that allows our team to get the benefits of E2E testing with a fraction of the effort they usually require.”

Brandon Goren

Brandon Goren

Software Engineer

@

Clay

Software Engineer

Clay

“We’ve loved our experience with Ranger. They make it easy to keep quality high while maintaining high engineering velocity. We are always adding new features, and Ranger has them covered in the blink of an eye.”

Martin Camacho

Martin Camacho

Co-Founder

@

Suno

Co-Founder

Suno

"We knew we needed to do more testing and internally we would always just make up new excuses for why we couldn't do it. So hiring Ranger to do it for us was pretty much essential."

Spencer Schoeben

Spencer Schoeben

Founding Engineer

@

Delphi

Founding Engineer

Delphi

Ranger helps our team move faster with the confidence that we aren't breaking things. They help us create and maintain tests that give us a clear signal when there is an issue that needs our attention."

Matt Hooper

Matt Hooper

Engineering Manager

@

Yurts

Engineering Manager

Yurts

"I definitely feel more confident releasing more frequently now than I did before Ranger. Now things are pretty confident on having things go out same day once test flows have run."

Jonas Bauer

Jonas Bauer

Co-Founder and Engineering Lead

@

Upside

Co-Founder and Engineering Lead

Upside

"To accurately capture our models’ agentic capabilities across a variety of surfaces, we also collaborated with Ranger, a QA testing company that built a web browsing harness that enables models to perform tasks through the browser."

OpenAI o3-mini Research Paper

OpenAI o3-mini Research Paper

@

“Ranger has an innovative approach to testing that allows our team to get the benefits of E2E testing with a fraction of the effort they usually require.”

Brandon Goren

Brandon Goren

Software Engineer

@

Clay

Software Engineer

Clay

“We’ve loved our experience with Ranger. They make it easy to keep quality high while maintaining high engineering velocity. We are always adding new features, and Ranger has them covered in the blink of an eye.”

Martin Camacho

Martin Camacho

Co-Founder

@

Suno

Co-Founder

Suno

"We knew we needed to do more testing and internally we would always just make up new excuses for why we couldn't do it. So hiring Ranger to do it for us was pretty much essential."

Spencer Schoeben

Spencer Schoeben

Founding Engineer

@

Delphi

Founding Engineer

Delphi

Ranger helps our team move faster with the confidence that we aren't breaking things. They help us create and maintain tests that give us a clear signal when there is an issue that needs our attention."

Matt Hooper

Matt Hooper

Engineering Manager

@

Yurts

Engineering Manager

Yurts

"I definitely feel more confident releasing more frequently now than I did before Ranger. Now things are pretty confident on having things go out same day once test flows have run."

Jonas Bauer

Jonas Bauer

Co-Founder and Engineering Lead

@

Upside

Co-Founder and Engineering Lead

Upside

Get started
When failure isn't an option, Ranger is on watch.
Ranger continuously validates critical flows so you can do more building and less babysitting.
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Ranger 101

Shipping code is easy, but every bug has a price. Ranger covers it.

Ranger’s agents adapt, triage, and catch real bugs before they reach production, so you ship faster, safer, every time.

(1) Adaptive testing, not static scripts

Our web agent navigates your site, generating Playwright tests that stay relevant without manual upkeep.

(2) Signal over noise

Ranger automatically triages failures, filtering out noise and flaky tests. Your team sees only real bugs and high-risk issues, so engineering time is spent on higher-leverage building.

(3) Momentum that scales

Ranger maintains critical flows, evolves coverage automatically, and catches real risks before they hit production. Ship faster. Break less. Deliver more.

We test your site, so your site doesn’t test you.

Ranger
AI-Only Tools
Manual QA

Helps you create your testing plan

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Runs tests as your code changes

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Integrated into CI/CD process

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Bugs triaged by us, not your users

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QA Expert reviews test code

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Human-readable code generated

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Tests auto-update with your product

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Test infrastructure hosted for you

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Flexible capacity as you scale

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Integrations

Ranger works where you work.

Ranger handles the infrastructure setup for running tests, spinning up browsers to run quick and consistent tests for your team.
Slack Preview of Ranger
Slack

Where you talk

We integrate with Slack to give you real-time signals, keep your team in the loop, and tag stakeholders for visibility and action.

GitHubGitLab

Where you code

Your test suite runs as your code changes, with test results shared directly in Github.

Where you host

Ranger runs against staging/preview environments, allowing you to run crucial tests and catch potential bugs.

QA QUEstions?

FAQ

Who writes the tests? AI? Engineers?

Both! Ranger is a bit like a cyborg: Our AI agent writes tests, then our team of experts reviews the written code to ensure it passes our quality standards. 

Our team checks that your code is:

1) built correctly

2) readable to other humans

3) is going to be reliable for your team

We love where AI is heading, but we’re not ready to trust it to write your tests without human oversight. With our team of QA experts, you can feel confident that Ranger is reliably catching bugs.

Who is Ranger best suited to help?

Anyone with a web-based product should be thinking about end-to-end testing. We work best with teams that are focused on building and shipping fast. If that’s you, set up time to chat with us here.

Do I need to have test automation and infrastructure in place?

Nope! We work with products at every stage, whether you’re new to Playwright or looking to migrate an existing suite of tests.

Our team of QA experts will walk you through the process of putting testing on easy mode. We take care of everything, from creating and maintaining your tests to the infrastructure needed to run them.

How does Ranger’s pricing work?

We base our annual contracts on the size of your test suite. Once we chat about your testing needs, we can customize a quote for you.