User Acceptance Testing Tool

Get user approval faster

Speed up your user acceptance testing by collecting feedback directly on your website.

Get user feedback in real time

User acceptance testing is most effective when the people testing your site can tell you what's wrong quickly, clearly, and without friction. Marker.io makes that happen.

Make sure no feedback gets lost

Capture feedback the moment something goes wrong. Users click, comment, and move on.

A tool you'll actually use

Marker.io is clean, familiar, and takes seconds. Easy-to-use means better coverage.

Install in minutes, not days

Get started with one line of JavaScript, a widget, or an extension. No setup, no delays.

The trusted design tool for market leaders

Nathan Monk

“Clients used to send us emails, documents, spreadsheets and even powerpoints for feedback. Now we just use Marker.io.”

Nathan Monk
 - 
Founder at Smile Agency

Collaborate easily with users, colleagues, and stakeholders

UAT involves a lot of people: internal teams, external users, market leads, and sign-off stakeholders. Keep everyone aligned so feedback processes work smoothly.

Client communication

Stop sending extra emails. All communication syncs back into your issue tracker – one source of truth, no buried inboxes.

Guest portal

Get an overview of previously reported issues. Point stakeholders to a live view of progress instead of fielding "have you fixed this yet?" messages.

Automatic status sync

Notify guests automatically when a developer closes an issue. When the status updates in Jira, Marker.io reflects it in real time – no manual updates needed.

Kasper Tikob

“It's very nice to limit the form. Too many fields would confuse our clients and users. Now they just have the title and description.”

Kasper Tikob
 - 
Product owner at Tikweb

Integrate with all your favourite tools

Connect your UAT tool with your project management solution, so the information you need is captured where you can act on it. Marker.io syncs with Jira, Linear, Trello, GitHub, and more. Feedback lands directly in your existing workflow.

How Marker.io supports your UAT process

UAT involves a lot of moving parts. Marker.io fits into every stage.

Define your environment

Install Marker.io on your staging site in minutes. It's ready before your testers are.

Run your user acceptance tests

Testers report issues directly on the page. No alt-tabbing, no emails, no lost context.

Capture everything automatically

Browser, OS, screen size, console logs, and screenshots are attached to every report.

Manage feedback in one place

Issues sync straight into Jira, Linear, Trello, or whichever tool your team already uses.

Keep stakeholders informed

The guest portal gives everyone a live view of progress. Automatic status sync notifies them when issues are resolved.

Sign off with confidence

Your team has a complete, organized record of every issue reported, triaged, and fixed.

All the technical data your developers need

Testing environments

Report issues directly from your staging or UAT environments.

Technical details

Auto-capture metadata, screenshots, and technical logs.

Network logs

Capture and view network logs on bugs reported via the widget.

Environment data

Browser, OS, webpage and screen size are automatically added to your issues, without reporters having to do anything.

Javascript SDK

Take control of the widget via JavaScript SDK and pass custom metadata about your users or technical environment.

Monty Kosma

“Our developers can now see bugs through the reporters' eyes, with no information getting lost.”

Monty Kosma
 - 
CTO at Darcy Partners

Manual UAT slows you down. Marker.io speeds you up.

Manual user acceptance testing creates friction at every step, and friction means slower launches. Testers have to screenshot, annotate, switch tools, log in to a project management platform, and manually document browser details. Marker.io makes things simple and streamlined.

Use Marker.io to Automate Your UAT

Marker.io removes the manual effort that slows software testing down, without changing the way your team works.

Technical data captured in each issue

Browser, OS, screen size, page URL, console logs, and network logs are attached to every report automatically. Testers describe what they saw. Marker.io handles the rest.

AI cleans up the noise

Our AI features – now in beta – translate feedback from other languages, rewrite unclear descriptions, and generate issue titles from a single field.

Issues go straight to your workflow

Feedback syncs directly into Jira, Linear, Trello, or your project management tool of choice, meaning no copy-pasting, no manual imports, no separate system to manage.

Automatic status updates

When a developer closes an issue in your project management tool, guests and stakeholders are notified in real time. No manual chasing required.

Discover our new AI features

Enable users to report and fix issues in record time with Marker.io's AI features, now in beta. Just one part of Marker.io that enables automated acceptance testing.

Translate feedback

Communicate easily with global teams by letting reporters write in their native tongue, which AI translates into your team language.

Generate descriptions

Turn rough notes into clear, actionable feedback with AI that rewrites descriptions to improve grammar, clarity, and structure.

Generate a title

Simplify your widget to keep only one field per form, the description, and our AI will use it to generate an actionable title.

Responsive

Track bugs and report them on any device

Collect user feedback from team members, testers, stakeholders, clients, or even customers on mobile, tablet, and desktop.

Customization

Customize your experience

Match your branding to create a seamless experience for users of your UAT tool and your website. Add a custom button to make Marker.io easy to find.

Cody Wheeler

“I love that we get a video of exactly what happened to our users”

Cody Wheeler
 - 
Scrum Master at Samtec.com
Source of Truth

Collect website issues in one source of truth

Don't ask your devs to adopt a new tool. Make sure all user feedback arrives directly where your devs work, with all the information they need to reproduce.

Console Logs

Get insights into console errors

Even if your users are not technical, your devs still get the data they need to easily reproduce the issue and understand the feedback.

Metadata

Understand which users send which feedback

Use custom metadata to get more insights into your users and reporters.

Deploy

Deploy Marker in your favorite CMS

Marker.io can easily be installed on all existing CMS systems.

Responsive

Users can report from any device

Collect feedback from your users on mobile, tablet, or their desktop.

Get started now

Free 15-day trial  •  No credit card required •  Cancel anytime

UAT Tool FAQs

What are UAT tools?

UAT tools are software platforms that help teams manage the user acceptance testing process – from collecting feedback to tracking issues and communicating with stakeholders.

A purpose-built UAT tool like Marker.io goes further by embedding the feedback mechanism directly into your website, capturing technical data automatically, and syncing everything into your project management workflow.

What is user acceptance testing?

User acceptance testing (UAT) is often the final stage of the software development lifecycle, sometimes occurring before beta testing, where real end users test a product to verify it meets business requirements before it goes live. It's the last quality gate before launch; the point where you confirm the product works the way it's supposed to in a real-world context.

UAT typically involves structured test cases, defined acceptance criteria, and a user feedback loop between testers and the development team.

Successful user acceptance testing not only gets you test results you can act on to improve your release, but also helps you understand user expectations of your product or website.

What are the best UAT testing tools with real-time feedback?

For teams that need real-time feedback during UAT, the best tools are those that let users report issues in the moment – without switching context.

Your connected tools handle access control, customizable workflows, time tracking, audit trails and reporting, while our straightforward solution saves you time by capturing high-quality bug reports to get pulled automatically into those other tools – no steep learning curve or complex code review needed.

What are the top tools for automating manual UAT processes?

Manual UAT is usually slow because testers have to document everything themselves – browser version, OS, page URL, what they were doing when the issue occurred – which is especially challenging for non-technical users.

Marker.io eliminates most of that manual effort. Technical data is captured automatically with every report, so testers only need to describe what they saw.

Marker.io's AI features take it further: they translate feedback from other languages, rewrite unclear descriptions, and generate issue titles from a single field. The result is a faster, more accurate UAT process with far less manual overhead.

What are the different types of user acceptance testing?

User acceptance testing isn't one-size-fits-all. The type of user acceptance testing you need depends on what you're validating before launch.

Operational acceptance testing checks whether the product is ready for day-to-day use, support, and handover – not just whether it works.

Contract acceptance testing validates that the software meets the deliverables agreed in a contract or statement of work.

Regulatory acceptance testing confirms compliance with legal or industry requirements before external users ever interact with the product.

Business acceptance testing focuses on whether the software supports real business processes and user needs – the commercial "does this actually work for us?" check.

Large enterprise rollouts often require several of these in parallel. Marker.io supports all of them, giving every stakeholder a simple way to execute tests, report issues, and manage feedback across user sessions, without any specialist training or complex test management setup.