Dessn

Dessn turns a team's production codebase into a collaborative design canvas

DevTools · SaaS · AI / ML Live product Montréal, Canada (growing in London)
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Oct 29, 2026

The Problem

Product teams rely on local development setups and disconnected design tools to design and iterate, which drifts from what is actually live in production. The page highlights examples like tables that drift across four screens with inconsistent header sizes, alignment, row heights and status styling, showing how design systems lose fidelity over time. A quoted Head of Product says he wanted production to be the source of truth but became allergic to the whole local setup process. Designers and engineers currently lack a shared, visual way to explore and QA product ideas against the real, live codebase.

The Solution

Dessn connects to a team's GitHub or GitLab repository with read-only access and compiles the codebase into an interactive design canvas, described as ready in minutes to about 30 minutes for a full setup. Once connected, it learns existing routes, components and the design system automatically, letting users pull live product pages onto a canvas to design, review and QA with full fidelity to production. Features mentioned include auditing an entire product's design consistency in one prompt (e.g. finding differences across tables), direct editing, sharing and collaboration, and visualizing entire user flows like a booking journey from event type to confirmation. It supports React, Vue.js, Electron and React Native apps, never writes or pushes code back, and the company states it does not train on customer data and is SOC 2 Type II compliant.