Programming

Web

Web Language Docs

Web
SOAP (XML)	GraphQL	HTML
CSS	JavaScript	Web.Dev (Web Language Learning) !
Front-end Checklist	Devhints !

Online Web Coding Environments

Web Languages Practice
Codepen - build, test, and discover front-end code	The Odin Project - full-stack curriculum (free)	Codeply - HTML/CSS/JS editor with frameworks and templates

Guides

JavaScript for Pentesters (PTA Walkthrough)	JavaScript for Pentesters Part 2	Full Stack Open - Javascript Training

System Coding

General

Interactive language learning Repo from @ronreiter	Roadmap.sh - Collection of free language learning resources by developer job role !
LearnXinYminutes- Language Learning Site	DevDocs - searchable library of various common API documentation
Python Tutorial	Free Programming Books

Docs

Scripting/Programming Docs
Python !	C	Go	Rust

Linux/Shellcode

FOSS Linux	Linuxize	It's FOSS	LinuxOPsys
Linux Hint	Linux Command	Linux Handbook	Linux Journey
Linux Survival	Tecmint

Tools/Helpers

Coding References
Visual Studio Download (VS)	Snyk Vulnerability Scanner - extension that does analysis while using VS Code	AWS CodeWhisperer - ML-powered code suggestion VS extension
Live Preview - VS extension that shows web projects while coding	Devhints - Code Samples/cheatsheets !

Challenges

HackerEarth	Hackerrank	CodeChef	TopCoder
Exercism	Codewars	LeetCode	Sphere Online Judge
CodinGame	ROP emporium (ROP challenges)	CheckIO Python/TypeScript Challenges