Zeplin

Design handoff tool where product teams publish screens, map user flows and track version changes for developers to build from.

zeplin.io

Visit zeplin.io ↗would rather buy than build

Details

What it does: Design and images, Developer tools
Who it’s for: Developers, Software companies
Works on: Web, Mac
Tags: design handoff, user flows, styleguides, version history, design review

MarkupBase
Publish Markdown or HTML documents and collect versioned comments from colleagues and AI agents before signing them off.
Since 2026
Documents and e-signature · Developers
Twing
Captures coding agent conversations and turns them into shared diagrams and design notes so teams can review and spot clashes.
Since 2026
Developer tools · Developers
Nicelydone
A searchable collection of screens, flows and components from real SaaS apps, for designers looking for UI references.
Since 2023
Free plan · Design and images · Agencies
puppyone
Shared folder for AI coding agents, on your machine or in the cloud, that tracks every edit so any change can be rolled back.
Free plan · Developer tools · Developers