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Glasp VS CodePen

Compare Glasp VS CodePen and see what are their differences

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Glasp logo Glasp

Social web highlighter

CodePen logo CodePen

A front end web development playground.
  • Glasp Landing page
    Landing page //
    2022-09-14

Highlight the web and share the gist with peers. Learn from like-minded people. Glasp is an easier and faster way to highlight text and leave notes on the web. With one click, the content youโ€™ve collected appears across all your devices. ๐Ÿ“š

Glasp beautifully organizes your collection of highlights, so that you can easily come back to what truly matters to you anytime. By following like-minded people, you will discover useful content that expands your knowledge and thoughts. Collective learning is how humans got smarter across generations.ใ€€

โ€”โ€”

Key Features: โœ… Highlight text on the web โœ… Take notes on saved content and highlights โœ… Add tags to your highlights โœ… Discover useful content from like-minded people

โ€”โ€”

How to Use Glasp: 1. Click "Add to Chrome". 2. Log in to Glasp from the extension menu. 3. Select text and click your favorite color from a pop-up color tip. 4. You can see your highlights and notes on your profile page and/or Glasp home feed. 5. Add tags or leave comments on your saved content 6. Developing your collection of ideas and thoughts will help you connect the dots with like-minded people ;)

โ€”โ€” Benefits of Using Glasp: + Retain more information and easy to look back ๐Ÿ“š + Extract only important parts and use them for the future citation ๐Ÿ”— + Discover useful information from like-minded people ๐Ÿ” + Share your highlights & notes with friends and peers with one click ๐Ÿš€ + Leave your digital legacy for future generations (contribute to human history) ๐Ÿ™Œ

  • CodePen Landing page
    Landing page //
    2018-09-30

Glasp

Website
glasp.co
$ Details
freemium $15.0 / Monthly
Platforms
Web Windows Google Chrome Safari Edge Opera Vivaldi
Release Date
2021 December
Startup details
Country
United States
State
California
Founder(s)
Kazuki Nakayashiki, Kei Watanabe
Employees
1 - 9

CodePen

Website
codepen.io
Pricing URL
-
$ Details
-
Platforms
-
Release Date
-

Glasp features and specs

  • Highlight web articles
  • Kindle's notes & highlights import
  • Highlight YouTube transcripts
  • Highlight PDFs
  • Export highlights & notes
  • Find top highlights of articles
  • See other people's highlights & notes
  • Showcase reading list

CodePen features and specs

  • Real-time Collaboration
    Developers can collaborate with others in real-time, making it easy to work on projects with teammates or seek help from the community.
  • Immediate Visual Feedback
    CodePen allows you to see the results of your code as you write it, which is highly beneficial for learning and debugging.
  • Integrated Development Environment (IDE)
    CodePen provides a comfortable and feature-rich online IDE environment with syntax highlighting, autocomplete, and more.
  • Community-Driven
    Users can share their work with the CodePen community, receive feedback, and explore a wide range of projects created by others.
  • Extensive Resources
    CodePen offers a wealth of examples and templates for various web development tasks, making it a useful resource for learning and inspiration.
  • Cross-Device Accessibility
    Being an online platform, CodePen can be accessed from any device with an internet connection, making it convenient for developers on the move.

Possible disadvantages of CodePen

  • Limited Offline Functionality
    Since CodePen is primarily an online tool, it requires an internet connection for most of its features to work, limiting its usefulness in offline environments.
  • Performance Constraints
    Complex or resource-intensive projects may not perform as well on CodePen as they would in a full-fledged local development environment.
  • Subscription Costs
    While many features are free, advanced functionalities and additional storage options require a paid subscription, which may not be ideal for all users.
  • Limited Backend Capabilities
    CodePen is primarily designed for front-end development, so it offers limited support for backend technologies, making it less suitable for full-stack or server-side development.
  • Dependency Management
    Managing dependencies and libraries can be cumbersome compared to local development environments which have better tools for this purpose, like npm.
  • Security Concerns
    Sharing projects with the public can expose your code and assets to unauthorized use, posing potential intellectual property and security risks.

Analysis of CodePen

Overall verdict

  • Yes, CodePen is considered a good platform for web developers, both beginners and experienced. It offers a wide array of features that facilitate creative development and community engagement.

Why this product is good

  • CodePen is a popular online code editor and community platform for front-end developers to experiment with creating and sharing HTML, CSS, and JavaScript snippets. It provides an easy-to-use interface and real-time previews, making it a valuable tool for learning, prototyping, and sharing web development work. It also fosters a community where developers can showcase their projects, receive feedback, and learn from each other.

Recommended for

  • Front-end developers who want to quickly prototype and test web designs.
  • Beginners in web development looking to learn and receive feedback from the community.
  • Educators and students interested in a platform to showcase projects and collaborate.
  • Developers who want to explore creative coding and share their work with a community.

Glasp videos

Glasp - Tutorial Video

More videos:

  • Tutorial - Glasp User Profile Page
  • Tutorial - How to use Glasp browser extension (Chrome Extension)
  • Tutorial - Create and take a note on the Atomic Note
  • Tutorial - Highlight Web Pages with Glasp

CodePen videos

What Is Codepen?

More videos:

  • Review - Learn to use CodePen from a co-founder of CodePen
  • Review - Using CodePen For Inspiration & Learning

Category Popularity

0-100% (relative to Glasp and CodePen)
Productivity
100 100%
0% 0
Text Editors
0 0%
100% 100
AI
100 100%
0% 0
Programming
0 0%
100% 100

User comments

Share your experience with using Glasp and CodePen. For example, how are they different and which one is better?
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Reviews

These are some of the external sources and on-site user reviews we've used to compare Glasp and CodePen

Glasp Reviews

Best AI YouTube Summarizers in 2025 (Free & Paid)
Glasp is a user-friendly tool for straightforward summaries of YouTube videos. It uses typical natural language processing algorithms to ensure that the summaries are simple and coherent. The simplicity of its interface makes it accessible to users of all ages, from tech novices to seasoned professionals. Users can also copy summaries, as in Scripsy, allowing for easy...
Source: www.scripsy.ai

CodePen Reviews

Best Forums for Developers to Join in 2025
Codepen is a social network for developers to show off their work, ask and answer questions, and exchange ideas. It's like a Reddit for coding and design, with a large community of talented web developers.
Source: www.notchup.com
Top 10 Developer Communities You Should Explore
Codepen is a social development environment that allows developers to showcase their work and experiment with HTML, CSS, and JavaScript in a collaborative space. Codepenโ€™s focus on visual and interactive development makes it an excellent community for front-end developers and designers.
Source: www.qodo.ai
8 Best Replit Alternatives & Competitors in 2022 (Free & Paid) - Software Discover
Codepen is a social development environment for front-end designers and developers. Build and deploy a website, show off your work, build test cases to learn.
Best Online Code Editors For Web Developers
Probably the most popular online code editor. CodePen is fast, easy to use, and allows a web developer to write and share HTML/CSS/JS code online.
Source: techarge.in
Top 25 websites for coding challenge and competition [Updated for 2021]
CodePen is a cool online IDE that allows you to write code in your browser and see the result just as you build it. CodePen challenges is a place for leveling up your skills by building things. Each week, new challenges appear for you to tackle, and the best โ€œPensโ€ get picked.

Social recommendations and mentions

Based on our record, CodePen seems to be a lot more popular than Glasp. While we know about 511 links to CodePen, we've tracked only 9 mentions of Glasp. 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.

Glasp mentions (9)

  • Improve your learning with Glasp: A Comprehensive Guide.
    To sign up, visit the Glasp website and click the Sign-up button in the top right corner, or log in if you already have an account. - Source: dev.to / over 2 years ago
  • Unlock Your Full Learning Potential with Glasp: The Ultimate Study Tool
    You can install the Glasp browser extension to your web browser from its website or as an app on Play Store. - Source: dev.to / over 2 years ago
  • Daily Thread / June 29
    For no reason at all, if you wanted to read the transcript of their dumb podcast without giving them views or listens, you can use the Glasp extension on chrome or safari to give you a summary instead of sitting through the video. Source: about 3 years ago
  • How to improve my workflow? Need help.
    Also glasp.co and https://roamresearch.com/ look interesting. I haven't tried them yet. Source: about 3 years ago
  • Whatโ€™s a 100 dollar item you use every day that really boost productivity?
    These ones are free (since im a cheap person) but I use: - This for youtube summaries. Source: about 3 years ago
View more

CodePen mentions (511)

  • Haunted Loop: A Pure-CSS Halloween Scene
    Embed on DEV: If you prefer CodePen embed, create a Pen with that HTML and add to the post as: {% codepen https://codepen.io//pen/ %}. - Source: dev.to / 9 months ago
  • Top 10 Free Tools Every Web Developer Should Know
    CodePen is where creativity meets frontend code. You can write HTML, CSS, and JavaScript and see results instantly in the browser. - Source: dev.to / 11 months ago
  • What is the Most Effective AI Tool for App Development Today?
    For those preferring agent-based approaches, Replit Agent shines. Khris Steven, Founder of KhrisDigital Marketing, notes, "You can simply describe what you want your app to do in plain English, and Replit Agent will generate the code and deploy it." This natural language interface fosters collaboration, turning ideas into deployable apps in minutes. - Source: dev.to / 11 months ago
  • How I Built a Responsive Dark Mode Toggle Using Vibe Coding?
    After wrapping everything up, I hosted the final toggle on CodePen so others could test it out and learn from the approach. What started as a simple idea became a complete, responsive, and accessible component, thanks to a process that blended creativity with automation. - Source: dev.to / 11 months ago
  • Building an Office with 900+ Lines of CSS: My Frontend Challenge Journey
    For this CSS Art challenge, I wanted to step out of my comfort zone. While I've used CSS extensively for web apps and websites, I had never built an art piece purely with CSS. I started by diving into codepen and other inspiration sites, getting a feel for what was possible. Eventually, a rough sketch of an office atmosphere in Excalidraw became my guiding vision. My goal was to depict a typical office scene,... - Source: dev.to / 12 months ago
View more

What are some alternatives?

When comparing Glasp and CodePen, you can also consider the following products

AdCreative.ai - Give your business an unfair advantage with creatives / banners generated by highly trained Artificial Intelligence.

JSFiddle - Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.

Raindrop.io - All your articles, photos, video & content from web & apps in one place.

CodeSandbox - Online playground for React

My Mind - All your notes, bookmarks, inspiration, articles, and images in one single, private place, enhanced with artificial intelligence.

GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.