Join us in our live webinar, AI Agent Security: The Good, The Bad, and The Ugly on May 8th 2025, 9 AM PT
Enterprises
Individuals
Enterprises
Individuals
Sign in
Menu
Menu
Training for
Library
Platform
Pricing
Resources
Developer
Learn to code securely in 7+ popular languages
Pentester
Master offensive security while learning defensive techniques
Cloud Engineer
Train for the most sought-after security skills in tech
DevOps
Speed up security processes, achieve faster releases
Security Architect
Design software to be secure from the ground up
Security Engineer
Learn to secure any tech stack with purple team security
Security Champion
Bring game-changing security initiatives to your team
Browse all courses
Course Collection
DevSecOps Collection
AWS Security Collection
Kubernetes & Containers Security Collection
Secure Coding Collection
Azure Security Collection
AI & LLM Security Learning Path and Collection
Threat Modeling Collection
GCP Security Collection
Browse all learning paths
Overview
Get a bird's eye of our platform and take your InfoSec training to the next level
Learning Paths
Specialize in any of the 10 domains of security that best suits your needs
DevSecOps Certification
Become a highly sought-after DevSecOps pro
Cloud Sandboxes
Try out all those new skills in a risk-free environment, all on your browser
Hands-on Labs
Learn by doing, with over 800 Hands-on labs
Challenges
Put all those awesome new skills to the test with challenges in Kubernetes, AWS & AppSec
Playgrounds
Spin up secure playgrounds in just a few clicks and work in real world security scenarios
View Individuals Plans
E-books
View all
The Zero Trust Security Handbook
Building Security Champions
What’s New
View all
5 Critical MCP Vulnerabilities Every Security Team Should Know
Why DevSecOps Pipelines Need Zero Trust for Stronger Security
Events
View all
AI Agent Security: The Good, the bad and the ugly
Workshop: System and Agile Threat Modeling
Knowledge Base

Security libraries for the language of your choice

Libraries are the backbone of any application, but what are the best ones for the language/framework you’re using?

Don’t worry, we did the hard work for you by compiling a comprehensive list of security and secure-by-default libraries for 6 popular languages and frameworks. Whether you’re looking to set secure headers in NodeJS or do input validation in your Go web apps, this handy list ensures you have fewer stressful decisions to make.

Get Your Free List

Here’s What You’ll Discover In Our Free Course

Useful libraries for cryptography, authorization, roles, and access control for Python, Java Spring, Laravel, and Go.
Input validation libraries for NodeJS, Python, Go, Ruby, Laravel, and more.
Libraries to prevent SSRF, Cross-Site Scripting, Insecure Deserialization, SQL Injection, and more.
Libraries to help you do logging, set secure headers, and implement policy-as-code

Want to start learning for real? Get the complete Secure Coding Collection

Buy The Collection
Memory Corruption Attack and Defense in C Programs
Attacking and Defending SSRF with Scala
Attacking and Defending SQL Injection with Scala
Attacking and Defending Reflected XSS with Scala
Attacking and Defending Path Traversal with Scala
Secure and Insecure Logging with Scala
Attacking and Defending Broken Object Level Authorization with Scala
Attacking and Defending Command Injection with Scala
Attacking and Defending SQL Injection with Java Spring Boot
Attacking and Defending Persistent XSS with Java EE
Attacking and Defending Session Fixation with Java EE
Attacking and Defending XXE with Java EE
Implementing CSRF (Cross-Site Request Forgery) with Java EE
Attacking and Defending Insecure Deserialisation with Java EE
Attacking and Defending Insecure Deserialisation with Java EE
Attacking and Defending SSRF with Java EE
Attack and Defense SSRF With Django
Attacking and Defending SQL Injection with Java EE
VueJS: Content Security Policy Playground
ReactJS - Cross Site Scripting Playground
ReactJS - CSP Attack and Defense Playground
TLS and Encrypting Data in Transit
GRAPHQL Attack Vectors
Cross Origin Resource Sharing Playground
SAML Attack and Defense
Security Logging for Application Security
Introduction to OpenAPI Specification
Kotlin Security Playground
Swift Security Playground
Ruby on Rails Security Playground
Web Application Firewall Essentials - with ModSecurity
GoLang Security Playground
Server-Side Request Forgery: Attack & Defense
Python Security Playground
Angular Security Playground
NodeJS Security Playground
Java Security Playground
Secrets Management with Hashicorp Vault
OAuth and OIDC Essentials
JWT Jiu-Jitsu
API Security: Attack and Defense
Introduction to Web App Cryptography
Injections, XXE, and Insecure Deserialization
Cross-Site-Scripting Attack and Defense
Attacking and Defending Authentication & Access Control

Tailored for Companies 
Like Yours

Businesses Growing Fast: If you're scaling up, make sure you're doing it safely.
Tech Leaders: Ensure your team knows the latest in app security.
Security Teams: Get the latest strategies and hands-on practice.

Ready To Build Safer Software?

With the right guidance, not only can you avoid common AppSec pitfalls, but you can craft software that is a fortress in its own right.
Get Your Free List
About Us
Privacy Policy


United States11166 Fairfax Boulevard, 500, Fairfax, VA 22030

APAC
68 Circular Road, #02-01, 049422, Singapore


For Support write to help@appsecengineer.com‍

FOLLOW APPSECENGINEER
SOC2 Type2 Compliant
4.3
Copyright AppSecEngineer © 2025