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About the author

PrepAI is designed, built, and maintained by Ahsan Mahmood — a full-stack engineer who builds free, privacy-respecting products on zero-cost architectures.

Ahsan Mahmood (aoneahsan)

Full-stack engineer · React + Capacitor · Firebase · zero-cost product design.

About PrepAI

PrepAI grew out of a simple conviction: preparing for a technical interview shouldn't require a subscription. By running code in the browser, leaning on free service tiers, and processing files on-device, PrepAI delivers a full prep workflow — drills, mock interviews, peer reviews, analytics, and tools — at no cost to its users.

It's part of a wider portfolio of products built on the same principles: client-first, privacy-respecting, and free where it can be. You can find more of that work via the links above.

Get in touch

Found a bug, have a feature idea, or want to contribute drills or content? Reach out by email or through any of the profiles above. Feedback from people actually preparing for interviews is the most valuable input this project gets.

Contributing to these docs

This documentation site is open and public. Every page has an Edit this page link at the bottom that points to its source on GitHub, so corrections and improvements are welcome.