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Browse 38 full technology courses & 456 modules
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Role-based career roadmaps: Frontend, Backend & Cloud
Learning Portal
Interactive study dashboard, track progress & notes
Practice
Coding Challenges
Solve algorithmic problems with live test runner
Interactive Labs
Directory of the SQL lab plus interview, resume, and API labs
SQL Practice Lab
Free editor: run SQL on 105 challenges in the browser
DSA Visualizer
Animated sorting, trees, graphs & data structures
Web Playground
Live HTML, CSS, and JS editor with real-time preview
Interview Questions
Read company questions with written answers
Typing
Code Typing Practice
Type real source code in 40+ languages
Typing Speed Test
English word test for WPM and accuracy
Monkey Typing Test
Word WPM test with raw speed, a live graph, and themes
Keyboard Test
Press each key and confirm the keyboard works
Tools
Website Vulnerability Scanner
Free DAST
Automated DAST & OWASP Top 10 security audit by WeSecureX
SQL Performance Analyzer
Inspect indexes and the execution plan for one query
GDPR Privacy Scanner
Scan cookies, trackers & GDPR/DSGVO compliance
WCAG Accessibility Checker
Audit web accessibility & WCAG 2.1/2.2 compliance
OpenAPI / Swagger Validator
Validate YAML & JSON API specifications against schema
Resume Builder
ATS-friendly developer resume creator & PDF export
JSON Formatter & Validator
Format, validate, and minify JSON payloads
JWT Debugger
Decode, verify, and generate JSON Web Tokens
Regex Tester
Test regular expressions with real-time match highlighting
QR Code Generator & Scanner
Generate and scan custom QR codes instantly
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Courses
All Courses
Browse 38 full technology courses & 456 modules
Learning Paths
Role-based career roadmaps: Frontend, Backend & Cloud
Learning Portal
Interactive study dashboard, track progress & notes
Practice
Coding Challenges
Solve algorithmic problems with live test runner
Interactive Labs
Directory of the SQL lab plus interview, resume, and API labs
SQL Practice Lab
Free editor: run SQL on 105 challenges in the browser
DSA Visualizer
Animated sorting, trees, graphs & data structures
Web Playground
Live HTML, CSS, and JS editor with real-time preview
Interview Questions
Read company questions with written answers
Typing
Code Typing Practice
Type real source code in 40+ languages
Typing Speed Test
English word test for WPM and accuracy
Monkey Typing Test
Word WPM test with raw speed, a live graph, and themes
Keyboard Test
Press each key and confirm the keyboard works
Tools
Website Vulnerability Scanner
Free DAST
Automated DAST & OWASP Top 10 security audit by WeSecureX
SQL Performance Analyzer
Inspect indexes and the execution plan for one query
GDPR Privacy Scanner
Scan cookies, trackers & GDPR/DSGVO compliance
WCAG Accessibility Checker
Audit web accessibility & WCAG 2.1/2.2 compliance
OpenAPI / Swagger Validator
Validate YAML & JSON API specifications against schema
Resume Builder
ATS-friendly developer resume creator & PDF export
JSON Formatter & Validator
Format, validate, and minify JSON payloads
JWT Debugger
Decode, verify, and generate JSON Web Tokens
Regex Tester
Test regular expressions with real-time match highlighting
QR Code Generator & Scanner
Generate and scan custom QR codes instantly
All Developer Tools β
Browse the complete library of 40+ free developer tools
Certifications
Pricing
Blog
Sign In
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