Life & fun · alternatives · 2026
24 alternatives to PerfectPixel Browser Extension
Drop your mockup on the live page. Catch the misaligned padding, the mismatched color, the wrong font size. Ship once, not three times.
PerfectPixel Browser Extension is a tool for developers and designers that overlays design mockups directly onto live web pages to verify pixel-perfect accuracy. It catches misaligned padding, color mismatches, and… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. PerfectPixel Browser Extension launched in 2019; newer entries below may have overtaken it.
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Create remarkable mockups directly in your browser
2022 · visual.app · its alternatives →
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CSS Scan 2.0▲758The fastest and easiest way to inspect or copy CSS ⚡️
2019 · getcssscan.com · its alternatives →
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Font Fit▲377Try fonts on a live website and share results with a link.
2016 · fontfit.com · its alternatives →
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A Chrome extension for beautiful screenshots
2022 · brandbird.app · its alternatives →
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AnyPixels.js▲198A web-friendly way for anyone to build unusual displays
2016 · googlecreativelab.github.io · its alternatives →
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Everypixel▲422AI to find images that suit to your project.
2017 · everypixel.com · its alternatives →
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Sketch UI mockups directly on live websites in Chrome
2025 · chromewebstore.google.com · its alternatives →
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Font Tester▲280I've been looking for new fonts to use for a new project, but there weren't any great tools for seeing how a particular serif font for headers would look with another sans font for paragraph text, so I built a tool that lets you compare, adjust, and tinker with the way you'd use a font in your specific project before downloading it/setting it up. This is only using the free Google fonts for now. If there are other open-source fonts I should add, let me know and I'll add them!
2024 · font-tester.foxcraft.tech · its alternatives →
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Pixelied Mockups▲174Create stunning mockup designs online in minutes
2022 · pixelied.com · its alternatives →
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CSS Scan 3.0▲256The fastest and easiest way to check, copy and edit CSS
2022 · getcssscan.com · its alternatives →
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Hey! My name is Dima, I am from Ukraine and I am the co-founder of Lost Pixel! We built this tool to solve our problems at work and decided to open-source it so more people can build their custom visual regression testing pipelines! If you want to chat about the tool or visual regression testing in general I am super excited to meet like-minded people! Thanks a lot for checking out the product and I hope it will serve you well if you decide to try it out :D
2022 · github.com · its alternatives →
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Grid Overlay Pro▲106A browser extension to visualize grid layouts on any webpage
Feb 2026 · chromewebstore.google.com · its alternatives →
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Free Chrome extn for designers to inspect/edit live websites
2017 · canvasflip.com · its alternatives →
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Free tool to compare design mockups to the live website.
2021 · usepastel.com · its alternatives →
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This is a personal project I've been working on for a long time now. I stumbled upon the color quantization problem while doing something related for work. I then found an interesting paper for which I could find no implementations online, and the thing went from "let's implement this paper" to getting pretty obsessed with the whole thing. It's at an early, eaaaarly stage. There's a lot of work to be done, and it's a memory hog, but generally speaking works quite well, and the output is for the most part very high quality, so I'm happy to share it as beta.
2025 · github.com · its alternatives →
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The FixA11y project improves accessibility through smart technology and education.
2021 · fixa11y.com · its alternatives →
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FontViz▲66Easily inspect, validate & preview font styling of web-apps.
2024 · fontviz.app · its alternatives →
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Overlay images over your webpage to check design parity
2025 · chromewebstore.google.com · its alternatives →
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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →