Spot, report, and fix bugs early
Report and resolve bugs before they cause problems with our visual bug tracker tool.

The trusted bug tracker for development teams
See a bug?
Click, annotate, send.
Report issues on your website with our feedback widget.
Report bugs in three easy steps
Open Marker.io
Click the feedback button to open the Marker.io bug tracker widget when you spot a bug.
Annotate the image
Use tools like the text box, arrow, and highlight options to identify the bug on your screenshot.
Report the bug
Write the title and description in your bug form and fill out any other fields, then click "Send".

“Clients used to send us emails, documents, spreadsheets and even powerpoints for feedback. Now we just use Marker.io.”
Collaborate easily with stakeholders
Streamline communication with comments, attachments and issue status within each tracked issue. Give clients and external reporters an overview of previously reported issues.


Manage user permissions
Provide team members and clients with the exact bug tracking software they need with project access control options. Save time on team collaboration with our simple bug tracker so everyone can spend time tracking and fixing issues.
Customize your experience
Tailor your Marker.io issue tracking tool, with custom fields in forms and more, to match your branding and meet your needs. Add a custom button to your web pages so everyone can find the bug tracking system easily.


Collect issues in your source of truth
Manage all your software development projects in one source of truth by integrating Marker.io’s great features with your developers’ favorite project management tool. Connect our bug tracker to Jira, Trello, and others.
Report bugs faster with AI
Report and fix issues in record time with our bug tracker's AI features, now in beta. Turn raw feedback into structured input, generate clear issue titles, instantly, and keep global teams aligned with automatic translations.

Track what matters
Set up the website feedback widget in two steps: just copy our snippet code and paste it in your website's HTML. Our lightweight code ensures there's no impact on your site's performance.

“Marker.io changed how we report website feedback. No more screenshots laying around my desktop.”
Reproduce bugs effortlessly
Give your software developers all the data they need to fix bugs, automatically added to your project management tool.












“Our developers can now see bugs through the reporters' eyes, with no information getting lost.”
Deploy Marker in your favorite CMS
Install Marker on all existing CMS, including Wix, Shopify, Wordpress and other tools in the market. Handle issue reporting wherever you are with our bug tracking tool.


Understand who is sending bug reports
Use custom metadata to get more insights into your bug tracking tool users and reporters.
Travel back in time
Rewind and watch what clients did before submitting a software bug. Add visual feedback to your project management tool so your software developers can easily prioritize bugs.


Track bugs and report them on any device
Collect user feedback from team members and clients, or even customer feedback, on mobile, table or desktop.
Frequently Asked Questions
What is a bug tracker?
A bug tracker is a bug tracking tool or issue tracking tool that helps software development teams collect bug reports, user feedback and feature requests, then track bugs from initial report through to completing bug fixes.
In practice, it’s the solution for bug reports, defect tracking, issue management and team collaboration across your software development projects. The best bug tracking tools, like Marker.io, add a visual feedback layer on top of your existing project management software – such as Jira, Trello, Asana or GitHub – so software developers and product managers can manage bugs in one user-friendly, web-based workflow.
How do bug tracker templates help prioritize issues?
Bug tracker templates standardize how team members track bugs and report bugs, so every issue includes the same key features: steps to reproduce, impact, priority and environment.
With consistent fields, which you can customize using Marker.io, your combined bug tracking system and project management tool can prioritize tasks and generate reports that separate quick bug fixes from larger feature requests, defect management or test management work.
In Marker.io’s bug tracking tool, widget fields map to your issue tracker’s custom fields, so incoming feedback lands in the right list, aligning with your agile methodologies and ready for project planning.
How do IÂ build a bug tracker with JavaScript?
To build a bug tracking tool with JavaScript, you don’t need to reinvent an entire issue tracking system. Drop the Marker.io JavaScript snippet code or SDK into your website’s HTML and connect it to your favorite issue tracker or project management tool.
With a few lines of code, you get a simple bug tracking tool for issue reporting, screenshots and technical metadata. Create a versatile platform for bug tracking thanks to third-party integrations with your project management, software development, CMS and team collaboration tools.
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.
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