
Scrimba
Data Protocol
GoIT LMS
Codelita
CodeCrafters
Codecademy
Divize
The most fun way to learn to code.

iruler.net
Online Ruler
Nexmetra Ruler
On-Screen Ruler
Mesu.ro
ImageJ
Privacy Friendly Ruler
Measure anything in actual size with our on-screen ruler. Multiple ruler types for shoe, bra, ring, image & 3D model sizes at home. No physical ruler needed.

Which is more popular?
Based on our record, Codédex seems to be more popular. It has been mentioned 5 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | codedex.io | ruler.im |
| Pricing | — | |
| Company | — | 2025 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of Codédex yet.
Years ago, when a classmate asked if I had a measuring tape, I instinctively handed over my charging cable and looked up its length. That simple moment inspired Ruler.im Ruler.im helps you measure real-world items like shoe sizes or body measurements. It also lets you scale online images to...
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Codédex yet.
Overall verdict
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How often each product is chosen within a category, 0–100% relative to the other.


Share your experience with using Codédex and Ruler.im. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


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
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
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
Tracking Ruler.im since Dec 2025.
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