RedLinz is an innovative browser-based visual markup tool designed to streamline communication between humans and AI systems.
Its primary USP lies in its ability to simplify and enhance the process of providing precise visual instructions.
Instead of relying solely on text descriptions or sending raw screenshots, users can directly annotate UI elements using an intuitive set of 12 standardized markup symbols such as circles, arrows, rectangles, X stamps, checkmarks, callouts, and numbered labels.
These annotations are then converted into highly structured prompts, including exact coordinates and labels, enabling AI tools to understand and act on your instructions with greater accuracy.

One of RedLinz’s key features is its compatibility with popular AI platforms like Cursor, Claude Code, ChatGPT, Perplexity, and Grok, making it versatile across various workflows.
All annotations are processed client-side within your browser, ensuring data privacy as images never leave your device.
Its user-friendly interface and robust feature set make it an invaluable tool for those seeking precise, efficient, and secure human-to-AI collaborations.
Best of all, RedLinz offers a free plan with five markups per month, with affordable upgrade options to unlock unlimited, watermark-free exports, making it accessible for both casual and professional use.