Best Free Technical Interview Prep Tools in 2025
A comprehensive guide to the best free technical interview preparation tools available in 2025, with pros, cons, and recommendations.
Full interview simulation for free
23+ interview types at no cost
No signup required
AI-powered feedback included
Unlimited free practice
Different platforms excel at different things
LeetCode has vast problem library
HackerRank offers certifications
Pramp provides human practice partners
| Feature | AI Mock Interview | Multiple Platforms | Winner |
|---|---|---|---|
| AI Mock Interview | Full features free | N/A | AI Mock Interview |
| LeetCode Free | Interview sim | ~1500 problems | Tie |
| HackerRank Free | Voice practice | Certifications | Tie |
| Pramp Free | 24/7 availability | 4 sessions/month | AI Mock Interview |
| GeeksforGeeks | Interactive | Articles/tutorials | Tie |
For comprehensive free interview prep: Use AI Mock Interview for simulation, LeetCode for problem practice, and YouTube for system design concepts. This combination covers all bases without spending money.
Complete interview simulation
Practicing communication skills
System design interviews
Technology-specific prep
Building interview confidence
Algorithm problem solving (LeetCode)
Certifications (HackerRank)
Human practice (Pramp)
Reading tutorials (GeeksforGeeks)
Video learning (YouTube)
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