Sketch?

KINDAYou can build the valuable core, but the established product has meaningful operational complexity. Pick one narrow promise for v1.

BUILD FIRST

One specific customer type and one primary use case
A vertical slice that completes the main job without manual workarounds
Visible limits, review steps, and a fallback when an external dependency fails

LEAVE FOR LATER

Broad third-party integrations
High-scale collaboration, syncing, and permissions
Automation that can cause harm without human review

RESEARCH NOTES

What this tool actually does.

Checked 2026-09-06

Sketch is a macOS-native design tool covering the full product design process: interface design, design systems, prototyping, collaboration, and developer handoff. It ships as three apps: a Mac editor, a web app for viewing/inspecting/commenting, and an iOS app for previewing and mirroring. Key features include an infinite canvas, Frames, Stacks and Smart Layout, non-destructive boolean vector editing, Symbols (reusable components that update everywhere), shared Libraries, Layer Styles, Color Variables, OpenType and variable font support with RTL, prototypes buildable in under 10 clicks and testable in any browser or on iPhone/iPad, real-time co-editing, threaded pin comments, password-protected Previews, Workspace file sync, free developer handoff (inspect, download assets, export tokens), Command Bar, Canvas Minimap, multi-layer renaming, Figma file imports, platform UI Libraries, temp

SOURCES

RESEARCHED BUILD PROMPT

Give this to your coding agent.

Build a web-based replacement for the core Sketch (macOS design tool) workflow: designing multi-artboard UI screens, creating reusable components (Symbols) that update everywhere, laying out with Frames/Stacks and Smart Layout, making click-through prototypes between artboards, and handing off to developers via inspect mode and asset/token export. User-facing requirements: an infinite canvas with artboards and nested frames, vector shape tools (rectangle, ellipse, line, pen) with boolean operations, text layers with font/weight/size/color, reusable color variables and layer styles, Symbol creation with instance editing and overrides, stack layouts with direction/spacing that reflow content, a prototype mode with click hotspots and transitions previewable in-browser, pinned comment threads for feedback, and an inspect mode showing CSS-like values (size, fill, border, radius, typography) plus image/SVG asset export. Technical requirements: TypeScript + React with a Canvas/SVG renderer supporting pan, zoom, selection, and hit-testing; undo/redo history; a JSON document format with symbol/instance references and shared styles; a REST API or MCP server exposing open documents to AI coding assistants; WebSocket presence if co-editing is included; browser preview endpoint for prototypes. Suggested stack: React, zustand or reducer state, PixiJS or SVG for rendering, IndexedDB for persistence. Do not copy Sketch's brand, name, logo, proprietary assets, or its exact UI look; design an original interface that supports the same workflow concepts. Out of scope: full vector illustration, a plugin ecosystem, real-time multiplayer editing, an iOS mirroring app, and font embedding. Deliver a runnable app plus a README covering setup, the document format, and important limitations (for example, approximate Smart Layout and no variable-font rendering).

Visit the official product page