Interview skills decay between job searches — and the first real interview after a gap is a rough place to knock the rust off. AI interview prep tools give you unlimited reps: realistic mock interviews, role-specific question banks, and instant feedback on your answers, filler words, and pacing, all without the scheduling overhead or cost of a human coach.
We ranked these picks on the realism of their mock interviews, the quality and specificity of their feedback, role coverage (from software engineering to sales), and value. The best tools feel uncomfortably close to the real thing — that's the point.
CodePath is a nonprofit that teaches technical interview prep the way universities wish they could: free, structured courses taught by professional engineers from top tech companies, complete with mock interviews and an active career center. It has trained thousands of engineers now working at companies like Google and Meta, and admission calibrates you into beginner, intermediate, or advanced tracks. If you're a student or early-career engineer, this is the highest-value interview prep available at any price, and the price is zero!
Yoodli is like Grammarly for your speech: an AI communication coach that gives private, judgment-free feedback on your filler words, pacing, body language, and answer content in real time. Born out of the Allen Institute for AI and used by organizations from Toastmasters to major universities, it can generate a tailored mock interview from any job description and even lets you customize the interviewer's persona. The free tier is generous, making it the easiest way to fix the verbal habits you don't know you have.
Built by ex-FAANG hiring managers, Hello Interview has become the go-to for software engineers facing system design interviews. Its guided AI practice sessions simulate real interview pressure and deliver strikingly specific feedback on where your solution meets or misses the bar. A large share of its written guides and question breakdowns are free, with premium unlocking company-specific question rankings and deep dives. Engineers regularly describe the practice tool as the closest thing to the real interview they've found.