1
Juice Shop
owasp.org/www-project-juice-shopAlso covers security · same kind of website
OWASP Juice Shop is an intentionally insecure web application for security training, awareness demonstrations, CTFs, and tool testing.
Alternatives
The Best ProfessorMesser Alternatives in 2026
24 alternatives
Looking for something like ProfessorMesser? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms.
About ProfessorMesserprofessormesser.com
VisitProfessor Messer offers free video training, study notes, and study group replays for CompTIA A+, Network+, and Security+.
Top picks at a glance
First suggestionJuice ShopOWASP Juice Shop is an intentionally insecure web…Another optionPortSwigger AcademyPortSwigger Web Security Academy offers free online…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Juice Shop | — | Not stated | Web |
| 2 | PortSwigger Academy | — | Not stated | Web |
| 3 | Codeguage | — | Not stated | Web |
| 4 | The Borr Project | — | Not stated | Web |
| 5 | LearningSEO.io | — | Not stated | Web |
| 6 | ML Course Notes | — | Not stated | — |
| 7 | How DNSSEC Works | — | Not stated | Web |
| 8 | Hackers101 | — | Not stated | Web |
| 9 | Reverse Engineering Academy | — | Not stated | Web |
| 10 | echoCTF.RED | — | Not stated | Web |
All ProfessorMesser alternatives
2
PortSwigger Academy
portswigger.net/web-securityAlso covers security · same kind of website
PortSwigger Web Security Academy offers free online training and interactive labs for web application security.
3
Codeguage
codeguage.comAlso covers course · same kind of website
Codeguage offers short self-study courses focused on core programming topics.
4
The Borr Project
borr.dev/computer-scienceAlso covers course · same kind of website
The Borr Project builds a broad computer science curriculum from online materials for foundational study.
5
LearningSEO.io
learningseo.ioAlso covers course · same kind of website
LearningSEO.io maps a free SEO learning roadmap to guides, tools, and other resources for studying search optimization.
6
ML Course Notes
github.com/dair-ai/ML-Course-NotesAlso covers course
A collaborative collection shares course and lecture notes on machine learning, natural language processing, and AI.
7
How DNSSEC Works
howdnssec.worksAlso covers security · same kind of website
How DNSSEC Works explains DNS Security Extensions through an illustrated guide to its purpose and operation.
8
Hackers101
hacker101.comAlso covers security · same kind of website
Hacker101 offers a free web security class with lessons and Capture the Flag challenges.
9
Reverse Engineering Academy
reverseengineering.vercel.appAlso covers security · same kind of website
Reverse Engineering Academy covers fundamentals of reverse engineering, binary analysis, and software security.
10
echoCTF.RED
echoctf.redAlso covers security · same kind of website
echoCTF.RED provides offensive and defensive cybersecurity training labs and community access.
11
calmcode
calmcode.ioAlso covers course · same kind of website
calmcode publishes short video lessons about modern ideas and open-source tools, organized into courses.
12
CodingFantasy
codingfantasy.comAlso covers course · same kind of website
CodingFantasy teaches CSS, HTML, and JavaScript through browser-based coding games.
13
Learn Next.js
nextjs.org/learnAlso covers course · same kind of website
Learn Next.js teaches the framework through foundational lessons and a project to build a demo website.
14
Learn PHP
odan.github.io/learn-phpAlso covers course · same kind of website
Learn PHP collects curated resources for learning and practicing the PHP programming language.
15
Scipy Lectures
lectures.scientific-python.orgAlso covers course · same kind of website
Scientific Python Lectures is a set of learning materials about Python for scientific computing.
16
design.tips
designer.tipsAlso covers course · same kind of website
design.tips provides design tools, introductory lessons, and practical guidance.
17
StudyPlan
studyplan.devAlso covers course · same kind of website
StudyPlan.dev offers an online C++ course that starts with programming basics and proceeds through project work.
18
Learn C
learn-c.orgAlso covers course · same kind of website
Learn-C.org offers a free interactive C tutorial for people learning the language.
19
LandChad
landchad.netAlso covers course · same kind of website
LandChad.net provides guides for setting up personal internet services and websites.
20
Learn to Code HTML & CSS
learn.shayhowe.comAlso covers course · same kind of website
Learn to Code HTML & CSS teaches front-end web development through written lessons.
21
LearnAIFromScratch
learnaifromscratch.github.ioAlso covers course · same kind of website
Learn AI From Scratch presents a draft curriculum covering foundational topics for building an understanding of artificial intelligence.
22
Dash
dash.generalassemb.lyAlso covers course · same kind of website
Dash teaches web development fundamentals through an online course with lessons and exercises.
23
DOM Events
domevents.devAlso covers course · same kind of website
DOM Events visualizes the Document Object Model event system through interactive examples.
24
EggHead
egghead.ioAlso covers course · same kind of website
egghead offers expert-led courses and curated resources for modern web development.
No alternatives match this filter.
Alternatives to similar tools
PortSwigger Academy24 alternativesML Course Notes24 alternativesCodingFantasy24 alternativesThe Borr Project24 alternativesReverse Engineering Academy20 alternativesLearnAIFromScratch24 alternatives
What is the best alternative to ProfessorMesser?
Based on features, tags and platforms, the closest alternatives to ProfessorMesser are Juice Shop, PortSwigger Academy, and Codeguage.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative