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Unused CSS finder VS PostCSS

Compare Unused CSS finder VS PostCSS and see what are their differences

Unused CSS finder logo Unused CSS finder

Crawl your website and find unused CSS

PostCSS logo PostCSS

Increase code readability. Add vendor prefixes to CSS rules using values from Can I Use. Autoprefixer will use the data based on current browser popularity and property support to apply prefixes for you.
  • Unused CSS finder Landing page
    Landing page //
    2021-09-27
  • PostCSS Landing page
    Landing page //
    2023-09-19

Unused CSS finder features and specs

  • Efficiency
    Identifies unused CSS, resulting in cleaner and more efficient code. This can lead to improved page load times and reduced bandwidth usage.
  • Ease of Use
    Provides a straightforward interface that allows users to quickly scan their websites and find unnecessary CSS without needing extensive technical knowledge.
  • Cost Savings
    By eliminating unused CSS, it reduces the amount of data that needs to be transmitted and stored, potentially saving on hosting and bandwidth costs.
  • Improved Maintenance
    With a reduction in CSS file size, future maintenance becomes easier and more manageable, making it simpler to update or refactor code.

Possible disadvantages of Unused CSS finder

  • False Positives
    May incorrectly identify CSS as unused if the tool does not recognize dynamic changes or conditional loading, which can lead to accidental removal of necessary styles.
  • Dependency on External Tool
    Relying on an external tool could present privacy and security concerns, especially when sharing potentially sensitive code and styling information.
  • Manual Verification
    Requires manual verification of results to ensure important styles are not removed, which can be time-consuming and somewhat negate the tool's time savings.
  • Incompatibility with Complex Frameworks
    Might not effectively handle complex CSS frameworks or preprocessors, where styles are used indirectly or dynamically through Javascript or server-side frameworks.

PostCSS features and specs

  • Modularity
    PostCSS is built around plugins, which means you can choose the exact features you need and avoid bloat. This modularity offers high customizability.
  • Performance
    PostCSS is known for its fast performance owing to its efficient processing and the ability to use only required plugins.
  • Large ecosystem
    With a vast set of available plugins, PostCSS can achieve a wide range of functionality, from linting and vendor prefixing to advanced CSS transformations.
  • Active community
    An active open-source community continuously maintains and updates PostCSS and its plugins, ensuring long-term support and innovation.
  • Integration
    PostCSS can be easily integrated into various build systems such as Webpack, Gulp, and Grunt, making it highly versatile in different development environments.

Possible disadvantages of PostCSS

  • Learning curve
    Given its flexibility and the need to configure and choose among many plugins, PostCSS can have a steeper learning curve for beginners.
  • Plugin dependencies
    Relying on multiple plugins can lead to dependency management issues, and possible conflicts between plugins if not carefully handled.
  • Configuration overhead
    Setting up PostCSS might require more initial configuration effort compared to some integrated solutions which provide out-of-the-box functionality.
  • Plugin quality variance
    The quality and maintenance of available plugins can vary, with some plugins being outdated or less reliable than others.
  • Lack of opinionation
    PostCSS's unopinionated nature means it requires developers to have a clear understanding of their needs, potentially leading to inconsistencies in plugin choices if used across different projects.

Unused CSS finder videos

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PostCSS videos

UnCSS your CSS! Removing Unused CSS with PostCSS & Parcel

More videos:

  • Review - Terry Smith – Keep your CSS simple with postcss and tailwind
  • Review - #1 PostCSS Обзор

Category Popularity

0-100% (relative to Unused CSS finder and PostCSS)
Developer Tools
29 29%
71% 71
Design Tools
26 26%
74% 74
Development
100 100%
0% 0
CSS Framework
15 15%
85% 85

User comments

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Social recommendations and mentions

Based on our record, PostCSS seems to be more popular. It has been mentiond 45 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Unused CSS finder mentions (0)

We have not tracked any mentions of Unused CSS finder yet. Tracking of Unused CSS finder recommendations started around Mar 2021.

PostCSS mentions (45)

  • Desktop apps for Windows XP in 2025
    Fortunately we have tools like PostCSS and Babel, that let you target your specific Browser version, and they'll do their best to transpile and polyfill your code to work with that version. This alone will do a lot of the heavy lifting for you if you are working with a lot of code. However, if you are just writing out a few HTML, CSS, and JS files, then that would be overkill and you can just figure out what code... - Source: dev.to / 3 months ago
  • Improving Code Quality with Linting
    For example, linting CSS can be beneficial in cases where you need to support legacy browsers. Downgrading JavaScript is pretty common, but it's not always as simple for CSS. Using a linter allows you to be honest with yourself by flagging problematic lines that won't work in older environments, ensuring your pages look as good as possible for everyone. - Source: dev.to / 7 months ago
  • 30+ CSS libraries and frameworks help you style your applications efficiently.
    PostCSS PostCSS is a tool for transforming CSS with JavaScript plugins. These plugins can lint your CSS, support variables and mixins, transpile future CSS syntax, inline images, and more. - Source: dev.to / 9 months ago
  • Webpack Performance Tuning: Minimizing Build Times for Large Projects
    PostCSS is essential to the frontend ecosystem, with 69,473,603 downloads per week, it is bigger than all the above libraries mentioned, and has many features other than polyfilling, it is used by all the frameworks like Next.js, Svelte, Vue, and Tailwind under the hood. LightningCSS, created by the maintainer of another bundler Parcel, and written in Rust, is an excellent alternative. It provides all the... - Source: dev.to / 10 months ago
  • CSS Variable Naming: Best Practices and Approaches
    Stylelint: A modern, flexible linter for CSS that can be configured to check variable consistency. PostCSS: A tool that transforms CSS with plugins, including variable checks. CSS Linter: A specific tool to ensure correct and consistent use of CSS variables. Conclusion 🔗. - Source: dev.to / 10 months ago
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What are some alternatives?

When comparing Unused CSS finder and PostCSS, you can also consider the following products

CSS Peeper - Smart CSS viewer tailored for Designers.

Sass - Syntatically Awesome Style Sheets

Purgecss - Easily remove unused CSS

Tailwind CSS - A utility-first CSS framework for rapidly building custom user interfaces.

Bootstrap - Simple and flexible HTML, CSS, and JS for popular UI components and interactions

CSSViewer - A simple CSS property viewer