SellerSum VS Codédex

• 13 fee and profit calculators
  Calculators for eBay, Etsy, PayPal, Stripe, Square, Whatnot, Depop, Poshmark and Mercari, plus margin, markup and food cost. A comparison hub puts every marketplace's cut side by side.
• Rates quoted from official fee pages
  Every rate comes from the marketplace's own published fee page, and each calculator shows the date it was last checked. The source link sits on the page, so you can confirm the number yourself instead of taking our word for it.
• Tested against the marketplaces' own examples
  Where a marketplace publishes a worked example, the calculator reproduces it to the cent. eBay's $400 phone example is one of them, and a unit test fails the build if it ever stops matching.
• Fee changelog and email alerts
  Every fee change is logged with the date it landed. Sign up and you get one email when any tracked marketplace moves its rates, whichever calculator you use.
• Free, no signup
  Every calculator is free and works without an account. Nothing is behind a paywall.

• User-Friendly Interface
  Codédex offers a clean and intuitive interface that makes it easy for both beginners and advanced users to navigate and utilize the platform effectively.
• Comprehensive Resources
  The platform provides a wide range of coding resources and tutorials, covering various programming languages and technologies, which are beneficial for learners at different levels.
• Interactive Learning
  Codédex incorporates interactive coding exercises that enhance the learning experience by allowing users to practice and apply what they’ve learned in real-time.
• Community and Support
  The platform fosters a strong community where users can interact, seek help, and share knowledge, complemented by responsive customer support.

Possible disadvantages

• Limited Free Content
  While Codédex does offer some free resources, the majority of its more advanced tutorials and features require a paid subscription, which might not be accessible for everyone.
• Occasional Technical Issues
  Some users have reported experiencing technical glitches or downtime, which can hinder the learning process if not addressed promptly.
• Inconsistent Content Updates
  The frequency of content updates and new course additions can be inconsistent, potentially leaving learners waiting for new material in their areas of interest.
• Overwhelming for Beginners
  Due to the extensive amount of resources available, beginners might find the platform overwhelming and struggle to know where to start.

Tracking SellerSum since Jul 2026.

• Looking for a bit of coding advice!

  I'm a new coder too. What helps me is finding a good place to learn the most basic principles and having 2-5 things I want to do. I started with codedex.io , learning Python and HTML and then took their courses and moved on looking for... Source: over 3 years ago

• self learning towards a web dev career

  I think you should focus on HTML, CSS, and JS, starting with HTML. I just started HTML on a website called codedex.io. Pretty cool so far but I feel like I'm getting into a brand new thing haha. Source: over 3 years ago

• A beginner in python

  I've been learning Python on a website called codedex.io for about 6 months. It's been great for me so far. I just started on Classes and Objects. Give them a try, you might like them. Source: over 3 years ago

View more