# Compare Pixels by Pastel

> A visual comparison tool that overlays design mockups onto live websites to identify discrepancies between design and implementation.

- Website: https://usepastel.com/compare-pixels?ref=devshelf.io
- DevShelf page: https://devshelf.io/resource/compare-pixels-by-pastel
- Pricing: Free
- Categories: [Mockups & Screenshots](https://devshelf.io/category/mockups-screenshots.md), [Browser Extensions](https://devshelf.io/category/browser-extensions.md)
- Last checked: 2026-11-03

## About

Compare Pixels, by Pastel, is a visual inspection tool designed for developers and designers to bridge the gap between design mockups and live web implementations. By allowing users to upload design images and overlay them directly onto a live URL, the tool enables pixel-perfect comparison. It helps teams identify layout shifts, spacing issues, and styling inconsistencies during the development phase, facilitating faster feedback loops and more accurate front-end implementation.

## Alternatives

- [Over.fig](https://devshelf.io/resource/over-fig.md): Browser extension to overlay Figma designs onto live websites for pixel-perfect comparison and CSS inspection. (pricing: Freemium)
- [Ray](https://devshelf.io/resource/ray.md): A web-based tool for creating high-quality, stylized images of source code snippets for presentations and social media. (pricing: Free)
- [CSS Scan](https://devshelf.io/resource/css-scan.md): A browser extension to inspect, debug, and copy CSS rules of any element on a webpage with a single click. (pricing: Paid)

---

Source: DevShelf.io, the hand-reviewed catalog of dev tools and resources. Every resource is reviewed by hand before it is listed.