Software Alternatives, Accelerators & Startups

Runno VS CSS Peeper

Compare Runno VS CSS Peeper and see what are their differences

Runno logo Runno

Runno helps you make embeddable code snippets that run in the browser with WASM.

CSS Peeper logo CSS Peeper

Smart CSS viewer tailored for Designers.
  • Runno Landing page
    Landing page //
    2023-08-27
  • CSS Peeper Landing page
    Landing page //
    2023-06-30

Runno features and specs

  • In-browser execution
    Runno supports code execution directly in the browser, allowing users to test and run code without installing additional software.
  • Multiple language support
    The platform supports a variety of programming languages, making it versatile for developers working in different environments.
  • User-friendly interface
    Runno provides an intuitive and clean interface that is easy for both beginners and experienced users to navigate.
  • No server dependency
    Since the code runs entirely in the browser, there is no need for server-side processing, enabling a faster and more secure execution environment.
  • Open source
    Runno is open source, allowing developers to contribute to its development and customize it according to their needs.

Possible disadvantages of Runno

  • Limited computational resources
    Running code in the browser can be limited by the available computational resources and memory of the user's device.
  • Security concerns
    Executing code in the browser can pose security risks if not properly sandboxed, potentially exposing the system to vulnerabilities.
  • Dependence on browser capabilities
    The performance and range of features can vary depending on the capabilities and support of the user's browser.
  • Potential performance issues
    For complex and resource-intensive programs, in-browser execution might not match the performance of native or server-based environments.
  • Lack of full development environment features
    While it provides an excellent platform for trying out code snippets, Runno may lack some of the comprehensive tools available in full-fledged IDEs.

CSS Peeper features and specs

  • User-Friendly Interface
    CSS Peeper features a clean and intuitive interface that makes it easy for designers and developers to quickly understand the CSS of any website without diving into the code.
  • Quick Inspection
    The tool allows for rapid inspection of CSS properties directly from the browser, enabling users to analyze styles more efficiently than traditional methods.
  • Extracts Colors and Assets
    CSS Peeper automatically extracts color palettes and assets from web pages, providing immediate access to crucial design elements.
  • Browser Extension
    Available as a Chrome extension, CSS Peeper is easy to install and use, integrating smoothly into the workflow of many web professionals.
  • Time-Saving
    By simplifying the process of inspecting and extracting CSS properties, CSS Peeper saves valuable time for developers and designers.
  • No Coding Required
    The tool eliminates the need for manual coding when examining CSS, making it accessible to non-developers.

Possible disadvantages of CSS Peeper

  • Limited Browser Support
    Currently, CSS Peeper is only available as a Chrome extension, limiting its use for those who prefer or require other browsers like Firefox or Safari.
  • Not Comprehensive
    While CSS Peeper is quick for basic analysis, it may not provide comprehensive details or control for advanced CSS inspection tasks that developers might need.
  • Dependency on Extension
    Reliance on a browser extension means that users must install and maintain the extension, which may not be preferred in all environments, especially restricted or managed systems.
  • Privacy Concerns
    As with any browser extension, there are potential privacy concerns, particularly in terms of what data the extension might access or share.
  • Performance Impact
    Installing too many extensions, including CSS Peeper, can potentially impact browser performance, causing slower load times and increased resource usage.

Analysis of CSS Peeper

Overall verdict

  • Overall, CSS Peeper is considered a good tool for designers who want a straightforward, user-friendly way to explore the CSS of websites. It simplifies the process of understanding the styling of web pages, offers a visually appealing interface, and is particularly praised for making design exploration accessible without requiring deep technical knowledge.

Why this product is good

  • CSS Peeper is a browser extension designed for designers, offering an intuitive way to inspect and analyze the styles of websites. It provides a clean and simple interface, making it easier to extract CSS styles without being overwhelmed by the complexity of developer tools. The tool also allows users to quickly access color palettes, font details, and other design assets, which is especially useful for designers looking to understand and replicate design elements.

Recommended for

  • Web Designers
  • UI/UX Designers
  • Front-end Developers looking for design insights
  • Design students learning about web interfaces
  • Designers seeking inspiration from existing websites

Runno videos

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CSS Peeper videos

CSS Peeper: new tool for Web Designers

Category Popularity

0-100% (relative to Runno and CSS Peeper)
Open Source
100 100%
0% 0
Design Tools
0 0%
100% 100
Developer Tools
23 23%
77% 77
Education
100 100%
0% 0

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Runno and CSS Peeper

Runno Reviews

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CSS Peeper Reviews

112 Best Chrome Extensions You Should Try (2021 List)
CSS Peeper is one of the best Chrome extensions for web developers to extract more design and focus less on digging codes. It is intuitive to use. So easy to find an element and its styles on a page than it is with the built-in ‘inspect element’ tool in Chrome browser. CSS Developers who are invariably curious about web designs should use this extension.

Social recommendations and mentions

Based on our record, Runno should be more popular than CSS Peeper. It has been mentiond 8 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.

Runno mentions (8)

  • Ask HN: What Are You Working On? (March 2025)
    Working on Runno (https://runno.dev/) as a side project. It's a tool for running code in the browser for educational use. I've been playing around with turning it into a sandbox for running code in Python (https://runno.dev/articles/sandbox-python/). This would allow you to safely execute AI generated code. Generally thinking about more ways to run code in sandbox environments, as I think this will become more... - Source: Hacker News / over 1 year ago
  • Container2wasm: Convert Containers to WASM Blobs
    Really impressed by the depth and breadth of this project, well done! A particularly interesting part is the socket layer inside the browser. Other people solving this problem have previously used a proxy to a server that does the real socket implementation. This means you can't have a "browser-only" solution. The author has solved this (for HTTP/S only) by proxying HTTP requests and then re-creating them as fetch... - Source: Hacker News / over 2 years ago
  • Container2wasm: Convert Containers to WASM Blobs
    This is the use case I've been tackling with Runno (https://runno.dev), it's more performant than OP's approach but not as flexible. - Source: Hacker News / over 2 years ago
  • Interactive Code Cells
    I love these kinds of interactive code/sandbox projects! The author's example page [1] gives some more background on the design of Codapi as well [2]. Another similar project is Runno which runs entirely client-side in the browser [3]. [1] https://antonz.org/code-examples/ [2] https://codapi.org/ [3] https://runno.dev/. - Source: Hacker News / over 2 years ago
  • Extism Makes WebAssembly Easy
    I'm working on this problem as well and would be happy to sling you some thoughts and notes. Check my website https://runno.dev and send an email to the address on that website! - Source: Hacker News / almost 3 years ago
View more

CSS Peeper mentions (3)

  • Using Adobe XD to find out a website's padding?
    You can indeed inspect the site with your browser's dev tools, or you have some Chrome extensions like: https://csspeeper.com/ that make the process more straightforward. Source: almost 4 years ago
  • Your code, stylish
    Think CSS inspection through DevTools impractical or intimidating? CSS Peeper arrives to make inspecting styles easier and more elegant. It also intelligently extracts the site's color palette and makes it easy to export your assets. - Source: dev.to / about 5 years ago
  • 25 Chrome extension for Designers
    @CSSPeeper 🌎 https://csspeeper.com/ CSS peeper is visual version of the chrome developer tools. It's great for designers looking to quickly & easily inspect the CSS from a website. Source: about 5 years ago

What are some alternatives?

When comparing Runno and CSS Peeper, you can also consider the following products

Codespace - A beautiful cross-platform code snippet manager

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

Productivity Power Tools - Extension for Visual Studio - A set of extensions to Visual Studio 2012 Professional (and above) which improves developer productivity.

CSSViewer - A simple CSS property viewer

Creative Tim - Awesome Bootstrap freebies and templates to build better websites

Unused CSS finder - Crawl your website and find unused CSS