Dessn.ai

What is Dessn.ai?

Dessn.ai is an AI-powered design assistant that enables product teams to create high-fidelity prototypes directly within their production codebase. Made by a team based in Montréal and London, the tool connects to a project's repository and transforms the codebase itself into a collaborative design environment, eliminating the traditional separation between design and development workflows.

The platform works by granting read-only access to a GitHub repository, then creating an isolated microVM environment where designers and non-technical team members can prototype features without opening an IDE or running localhost. Every prototype exists as a live branch of the actual codebase, allowing designers to iterate on components, create new flows, and modify existing interfaces using natural language prompts. The AI handles code generation and technical complexity while team members focus on design decisions. Dessn supports React webapps with any CSS or component library configuration, regardless of code quality or setup complexity. Multiple team members can collaborate simultaneously on the same prototype, viewing changes in real time.

Security is built into the product's architecture. Dessn is SOC2 Type II certified and operates on a read-only principle—the tool never writes, modifies, or pushes code back to repositories. Each project runs in its own isolated environment and is not used for model training. Access can be scoped to specific repositories with revocable permissions. Teams can connect their codebase in a single click with a 24-hour target turnaround for environment setup.

The tool addresses a core friction point in design workflows: the handoff between design mocks and production code. By collapsing this gap, teams report faster iteration cycles and higher-quality outputs. Users noted the ability to reuse up to 90 percent of generated code and found that interactive prototypes communicate design intent more effectively than static mockups. The