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About RedLinz
What is RedLinz?
RedLinz is a web-based markup tool that converts visual annotations on screenshots or images into structured AI prompts. It eliminates the need to describe visual changes in text — just circle, arrow, or highlight, and RedLinz generates a precise prompt with coordinate data and annotation types that AI tools like ChatGPT, Claude, Cursor, and Grok can act on.
What problem does it solve?
Developers and designers often waste time writing lengthy descriptions of UI changes that AI agents misinterpret. RedLinz solves this by turning visual feedback into unambiguous, structured instructions, reducing back-and-forth and getting fixes right the first time.
Who is it for?
RedLinz is ideal for developers, founders, designers, and marketers who use AI coding assistants (like Cursor or Claude Code) to build and iterate on web projects, landing pages, or AI-generated images. It is not for teams needing full project management or team collaboration features, as it focuses on individual annotation and prompt generation.
Real use cases
Use it to report bugs precisely, refine AI-generated UI (the last 10% Claude got wrong), request copy changes on landing pages, revise AI images (e.g., fix a hand in Midjourney), give visual feedback to developers, redline ad creatives, and spec step-by-step changes with numbered stamps.
Key features
- Annotation tools — Circles, arrows, rectangles, text notes, and highlights with semantic meaning.
- AI prompt generator — Converts annotations into structured prompts with coordinate data for AI tools.
- Client-side processing — Images never leave your browser; annotation happens entirely in-browser.
- Universal AI compatibility — Works with ChatGPT, Claude, Cursor, Perplexity, Grok, or any AI tool.
- Number stamping — Number-stamp screenshots to specify change order for step-by-step execution.
- No installation — Runs entirely in the browser at redlinz.com/app.
SaaSpartout Score
7.3
/10
Editorial score from our review methodology — not user ratings.
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RedLinz Pricing
RedLinz pricing: Free forever plan (5 markups/mo); Pro for unlimited.. Billing model: Free.
For comparison: the median starting price in Developer Tools is $19/month, measured across 301 tools we track. See the full SaaS Pricing Index →
Free Plan
$0/month — 5 markups per month, forever, no credit card required. Includes all annotation tools and AI prompt export to any AI tool.
Pro Plan
Upgrade to Pro for unlimited markups. Exact pricing is not publicly listed on the website; contact RedLinz for current pricing.
Note: RedLinz offers a free tier with 5 markups per month, no card required, making it easy to try before upgrading.
Frequently asked questions
Is RedLinz free?
Yes, RedLinz offers a free plan with 5 markups per month, forever, with no credit card required.
How much does RedLinz cost?
RedLinz has a free plan, and a Pro plan for unlimited markups. Exact Pro pricing is not listed on the website; you need to contact them for details.
What is RedLinz used for?
RedLinz is used to create precise visual feedback as AI prompts, for tasks like bug reporting, UI revisions, copy changes, and AI image editing.
Does RedLinz work with ChatGPT?
Yes, RedLinz exports prompts that work with ChatGPT, Claude, Cursor, Perplexity, Grok, and any AI tool.
Who is RedLinz best for?
Developers, founders, designers, and marketers who use AI agents and want to reduce miscommunication in visual change requests.
What are alternatives to RedLinz?
Alternatives include screenshot annotation tools like Loom, CloudApp, or Markup Hero, but RedLinz uniquely focuses on generating AI-ready prompts. There is no direct equivalent currently.
