Redline.cc, the easiest way to report visual bugs
As a developer, one of the biggest obstacles I've encountered has been how to communicate with designers - especially, when it comes to constructing their designs. Over the years, I have come to realize that Designers and Developers just see the world differently - Developers see the world as defects in code text and Designers see the world as defects in pixels. This "language barrier" is what Redline (http://www.redline.cc) addresses -it allows Designers (or anyone really) to enter bugs visually and directly on the web page. Then, those mark-ups automatically creates a bug ticket in your…
Redline.cc, the easiest way to report visual bugs launched on August 20, 2012 with 12 votes, #96 of 411 launches that month and more than 75% of that year's launches. The site was still online in September 2026, 14 years on.
In plain words
Redline.cc is a visual bug reporting tool that lets designers and developers mark issues directly on web pages, which automatically generates bug tickets in tracking systems like JIRA and Pivotal Tracker. It bridges communication gaps between designers and developers by allowing teams to report pixel-level defects visually rather than describing them in text. The tool is built for product teams who need faster, clearer feedback loops during design-to-development handoffs.
written from the facts on this page · September 2026
From the sources
Usersnap is the product evidence platform for enterprise product teams. Connect every user signal, decide what to build, and trace releases back to the evidence.
Every survey, support ticket, interview call, sales meeting, and in-app feedback, tagged and enriched the moment it appears. Let product discovery runs on real, quantified evidence. Spot trends, build hypotheses, and let agentic reporting guide you on what to build next. Prioritize with scoring criteria tuned to your own strategic decision-making. Usersnap connects to tools already in your stack, including sales, support, devops, and MCP-enabled AI, so data flows without manual export and workflow statuses are always in sync. Your evidence stays protected with privacy-first controls, secure EU hosting, and safeguards built for enterprise teams. Customer data is hosted and processed in…from redline.cc
In the maker’s words, at launch
As a developer, one of the biggest obstacles I've encountered has been how to communicate with designers - especially, when it comes to constructing their designs. Over the years, I have come to realize that Designers and Developers just see the world differently - Developers see the world as defects in code text and…
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Most feedback tools are built like people actually want to report bugs. They don’t. Unless you make it dead-simple, or better yet - a little fun. After shipping a few SaaS products, I noticed a pattern: Bugs? Yes. Bug reports? No. Not because users didn’t care but because reporting bugs is usually a terrible experience. Most tools want users to: * Fill out a long form * Enter their email * Describe a bug they barely understand * Maybe sign in or create an account * Then maybe submit it Let’s be real: no one’s doing that. Especially not someone just trying to use your product. So I built…
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