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Spec Checker is a lightweight web tool designed to help web designers and developers easily extract and visualize design specifications from mockups. It allows you to upload design files (like Figma or Sketch exports) and then provides an interactive overlay where you can measure distances, inspect colors, and check typography attributes directly on the image. This simplifies the handoff process between design and development teams.
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Why It’s Useful
The communication gap between designers and developers is a common bottleneck. Tools that automate the extraction of design specs aim to bridge this, but many are overly complex or integrated into expensive design suites. Spec Checker offers a focused, easy-to-use solution. By simply uploading a flat image of a design, developers can quickly get the precise measurements and style information they need without needing access to the original design file or software. This makes it incredibly useful for smaller teams, freelancers, or when working with legacy design assets, ensuring that implemented designs closely match the intended vision.
In everyday life
When you’d actually reach for this
Your developer needs to implement a new UI component, and you need to quickly provide them with the exact spacing, font sizes, and color codes from your final design mockup. Or, you're a solo developer who designed a website yourself and need to double-check the pixel-perfect alignment and styling before launching.
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