
CheckIO
Project Euler
Scratch
Exercism
Screeps
Tynker
Code.org
Learn programming with a multiplayer live coding strategy game.

QuickForm - Autofill Forms
Fake Filler
Magical
Fill Hero
Fake Data
Mockaroo
Test Data Management
Form Filler & Test Data Manager: AutoFill With Data You Control

Which is more popular?
Based on our record, CodeCombat seems to be more popular. It has been mentioned 72 times since March 2021.
Website, pricing, platforms and company facts side by side.
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|---|---|---|
| Website | codecombat.com | fillr.app |
| Pricing | — | |
| Platforms | — | |
| Company | — | 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of CodeCombat yet.
Fillr is a form filler and test data manager for Chrome — for when it matters what goes into every field. Save any form as a preset with a rule per field, fill it from your own CSV or Excel rows, and manage all your test data in one place. Realistic generated data (110+ types, 60+ languages) is...
What each product offers, as listed by its team.


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


Overall verdict
Why this product is good
Recommended for
CodeCombat is recommended for beginners, especially younger individuals or students, who are interested in learning programming in a gamified environment. It's particularly suitable for those who enjoy visual learning and interactive challenges.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
~~CodeCombat review 2017 | Everyone can learn to Code ~~
No Fillr.app videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing CodeCombat and Fillr.app.
Fillr.app's answer:
It leads with control, not random fill. Capture any web form as a reusable preset, set per-field rules (generated, fixed, your own data, or skip), and refill in one click — plus a built-in Datasets module to build, generate, and export test data. A form-filler and test-data manager in one, no code.
Fillr.app's answer:
Fake Filler only sprays random data; Mockaroo generates data but can't fill forms. Fillr does both — and lets you fill with your own data, with reusable presets, per-field control, and 60+ locales. No scripts.
Fillr.app's answer:
QA engineers and developers who repeatedly test web forms and need realistic, controllable test data. Demo and sales engineers are a natural secondary audience.
Fillr.app's answer:
Next.js 15, React 19, and TypeScript dashboard; a Manifest V3 Chrome extension built with Vite and supabase for backend
Share your experience with using CodeCombat and Fillr.app. For example, how are they different and which one is better?
External articles and on-site reviews we used to compare the two products.


CodeCombat is an online platform through which numerous users can develop levels with the help of education regarding programming. This platform can let its users engage with the contribution related to multiple...
We have no reviews of Fillr.app yet. Be the first one to post
Recommendations tracked on public social media and blogs since March 2021.


Anita: I have lifetime access to the subscription-based code-learning website, CodeCombat, where I enjoy learning Python and taking all the Game Development courses offered there. Those games I made were a part of the Game Development 1... - Source: dev.to / over 2 years ago
And https://codecombat.com, which has been around for a while now. I think this paradigm (navigating a character using "move" function invocations) is good but kind of exhausts its usefulness after a while. I question whether my... - Source: Hacker News / over 2 years ago
So now, while you have time (yes you have no time now but when you are out of school working with a child and or no summer vacation you will have less time) you can try MIT Scratch or CodeCombat and learn to code. For you it's a long the... Source: almost 3 years ago
Tracking Fillr.app since Jun 2026.
When comparing CodeCombat and Fillr.app, you can also consider the following products.

CheckIO is a web site with a mission: To teach JavaScript and Python coding skills through a game-playing interface. It is designed to teach new skills or improve existing skills through completing challenges.
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Chrome extension to autofill forms easier and faster.
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Project Euler is a series of challenging mathematical/computer programming problems that will...
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The quickest way to fill all inputs on a page with fake data.
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Scratch is the programming language & online community where young people create stories, games, & animations.
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