Mockplus
Prototype interfaces and collaborate on design delivery
Prepare designs and context for development handoff

Zeplin gives product teams a record of designs that are ready for development. Designers publish selected frames into a delivery workspace, then add annotations, user flows, and implementation requirements. Developers can inspect specifications and assets alongside that documentation when they begin building.
Version history and change tracking show how a delivered screen has evolved between revisions. Shared design-system guidance and comments keep decisions attached to the relevant work, while workflow tools organize the delivery process. AI review can check designs against supplied rules. It is useful when several people or teams need to understand which version was delivered and what changed since the previous one.
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