Hacksplaining teaches secure coding through interactive browser lessons covering OWASP Top 10 and GenAI threats.
The Best CSS Diner Alternatives in 2026
Looking for something like CSS Diner? Here are 21 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 5 are free or have a free plan and 1 are open source.
CSS Diner teaches CSS selectors through an interactive lesson that presents selector examples in a game format.
Top picks at a glance
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Hacksplaining | Freemium | Not stated | Web |
| 2 | RegexOne | — | Not stated | Web |
| 3 | CraftingInterpreters | — | Not stated | Android, Web |
| 4 | RegexLearn | Free | Yes | Web |
| 5 | HTML Cheat Sheet | — | Not stated | Web |
| 6 | DOM Events | — | Not stated | Web |
| 7 | Learn Shell | Free | Not stated | Web |
| 8 | Learn SQL | — | Not stated | Web |
| 9 | learncs.online | — | Not stated | Web |
| 10 | SQL Noir | — | Not stated | Web |
All CSS Diner alternatives
RegexOne
regexone.comRegexOne teaches regular expressions through interactive lessons and exercises.
CraftingInterpreters
craftinginterpreters.comCrafting Interpreters is a book about building programming languages, with lessons and examples for interpreters.
RegexLearn teaches regular expressions through interactive lessons and practice at different levels.
HTML Cheat Sheet
htmlcheatsheet.comThe interactive HTML Cheat Sheet includes code examples, developer tools, and markup generators.
DOM Events
domevents.devDOM Events visualizes the Document Object Model event system through interactive examples.
LearnShell.org provides an interactive Shell programming tutorial with lessons for practicing commands.
Learn SQL
sqlbolt.comSQLBolt offers interactive SQL lessons and exercises for learning database queries.
learncs.online
learncs.onlineLearnCS.online provides interactive lessons for learning Java and Kotlin.
SQL Noir
sqlnoir.comSQL Noir teaches SQL through an interactive detective game where players query a database to investigate cases.
Makefile Tutorial
makefiletutorial.comMakefile Tutorial teaches Makefiles through example-driven lessons for developers learning build automation.
Learn Next.js teaches the framework through foundational lessons and a project to build a demo website.
Learn to Code HTML & CSS
learn.shayhowe.comLearn to Code HTML & CSS teaches front-end web development through written lessons.
Dash
dash.generalassemb.lyDash teaches web development fundamentals through an online course with lessons and exercises.
SQL Easy
sql-easy.comSQL Easy teaches SQL through 31 interactive browser exercises using SQLite, with hints and practice in common query clauses.
CryptoHack
cryptohack.orgCryptoHack teaches modern cryptography through free interactive challenges and exercises.
Select Star SQL is an interactive book that teaches SQL by running queries against a real-world dataset.
Packet.School
packet.schoolPacket.School teaches networking through interactive simulations, network building, and a terminal experience.
Learn Git Branching
learngitbranching.js.orgLearn Git Branching teaches Git through an interactive terminal and branching exercises.
System Designer
systemdesigner.net/ml-systemsSystem Designer teaches software architecture through lessons, quizzes, and case studies.
Assembly Tutorial
github.com/mschwartz/assembly-tutorialAssembly Tutorial teaches programming in assembly language through written lessons.
Alternatives to similar tools
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