Your free companion for mastering technical interviews and coding skills
Interviewcode exists to democratize access to quality technical interview preparation. We believe learning to code and preparing for technical interviews shouldn't be locked behind paywalls or require constant internet connectivity. Our platform offers 1,100+ coding challenges and 70+ real-world projects—all completely free, with offline-first functionality so you can practice anywhere, anytime.
Practice across 9 technologies with Easy, Medium, and Hard difficulty levels
All progress stored locally in your browser—work offline, never lose data
No ads, no paywalls, no subscriptions—completely free and open source
Build portfolio-worthy projects in Frontend, Backend, and Fullstack categories
Interviewcode was created from a simple yet powerful belief: quality technical interview preparation should be accessible to everyone, regardless of their financial situation or internet connectivity. Too many aspiring developers face barriers—expensive courses, subscription models, and platforms that require constant online access.
We built this platform to change that. Whether you're a student preparing for your first internship, a self-taught developer building your skills, or an experienced engineer brushing up for your next interview, Interviewcode provides everything you need—with no barriers, no costs, and no compromises.
Interviewcode is made possible by the dedication and contributions of developers who believe in open access to education. We're grateful to everyone who has contributed code, content, bug reports, and ideas to make this platform better.
Want to contribute?
Interviewcode is open source and welcomes contributions from developers of all skill levels. Whether you want to add new challenges, improve documentation, fix bugs, or suggest features, we'd love your help in making interview preparation accessible to everyone.