InterviewBit

What InterviewBit is

InterviewBit is a coding interview preparation platform for software engineers and students who want to get through technical interviews at product companies. Its home page promises "Everything you need to crack your Next Tech Interview" and invites visitors to "Join 1 million+ learners." The core is a large bank of practice problems solved in an in-browser editor, wrapped in a game-like system of daily goals, streaks, points and leaderboards, with free peer mock interviews and short courses alongside. The home page links to offerings from Scaler, and the free mock assessment is "powered by Scaler."

How the practice works

Problems are grouped into tracks. The home page lists "800+ problems for practice" across Programming, System Design, Databases, Puzzle and Scripting, and the course pages show the size of each track: Programming has 615 problems, Data Science 77 and System Design 8. Each track is split into levels. The Databases track starts with a SQL Programming level of 43 problems, and the Shell track under Scripting runs from Basic Shell Commands to Regex and Functions. Each level mixes short articles with problems, and the site recommends solving earlier levels before moving on.

The FAQ explains the rules. Learners should already know basic programming in C, C++, Java or Python, including loops, if-else constructs, variable scope and data type sizes. A timer starts when a problem opens and cannot be paused, "because in real time, problem solving is done without a break." The site does not hand out test cases: "you have to think it on your own." If stuck, the advice is to open the hints after 15 to 20 minutes, "That's exactly what happens in an interview." Problems with higher scores are harder, and checkpoint problems let experienced learners skip ahead to the topics they want.

Pace is set by daily goals. A learner chooses how much time to give each day, and the streak counts consecutive days the goal is met; miss a day and the streak "is reduced to half." The FAQ says a regular user "devoting 2-3 hours everyday or achieving 200 points per day" will finish the course in about 3 months. Leaderboards rank learners by points and update every 30 minutes.

When hints are not enough, a seek-help feature asks learners who have already solved the problem. Each request costs ten coins from a starting balance of 50, and helpers earn coins for answers, which must arrive within 30 minutes of claiming a request. Coins can later be redeemed for gifts and privileges. The FAQ explains the idea plainly: "If you can't debug you're pretty much not a programmer at all, let alone a good one."

Courses, IDE and video

"Fast track courses" are, in the home page's words, "to the point byte size" courses around "20 most important topics such as data structures and algorithms programming dynamic programming." Language courses cover Python, Java, C++, JavaScript and C#, and learners can "even get certified." Course pages list badges for completing each topic, level bonuses and a certificate.

The platform includes free online compilers for C, C++, Python, Java and JavaScript, which the FAQ says run on the Ace editor. Video explanations are "created by our experts working at your dream companies." The resource menu adds interview guides (the sign-up panel counts "100 +" expert guides and "500 +" questions), an interview preparation kit, video courses, contests "with top coders," a blog, a community section, cheat sheets, multiple-choice quizzes and interview question collections for companies such as Amazon, Google, TCS, Infosys and Zoho.

Mock interviews and assessments

Mock interviews are free and run peer to peer. The home page describes "completely free and real-time mock interviews" with anonymous sessions, "personalized peer matching" based on availability, experience, education and practice topics, and hints and solutions so that both people can interview each other. Sessions run "with collaborative real-time code editor and inbuilt audio calling," on demand or scheduled.

The free Mock Coding Interview Assessment, powered by Scaler, gives a question-wise performance report and a structured learning path, and "a holistic picture of where you stand with respect to thousands of Indian Software Developers." The site also runs live webinars and masterclasses in software development and data science; event cards note "Certificate included."

Referrals

Referrals are the platform's link to jobs. The FAQ says consistent learners who keep their daily goals will "eventually" be referred: a learner uploads a resume, picks companies that match the profile, selects interview slots and gets customized preparation material. It says "over 100+ companies" hire from InterviewBit, naming Uber, Amazon, Booking.com, Directi, Hike and Zomato, and lists free mentorship and recent interview experiences among the benefits. Learners selected through InterviewBit, or who bring 50 sign-ups through their link, get a T-shirt.

Contributors can earn too. The FAQ offers USD 40 to problem setters for each problem that passes testing and USD 20 to problem testers for each valid editorial solution.

Price and app

The sign-up panel offers the complete InterviewBit experience for free, with sign-up by email or through a linked account. Mock tests, mock interviews and masterclasses are all advertised as free. A mobile app offers "free exclusive resources under one roof," with a "4.5 Rating" and "100K+ Downloads."

What learners say

Testimonials on the home page come from engineers who landed offers. Deepanshu Agarwal writes that on his 22nd day he had "offer from 2 big companies" and that the site "makes you a better programmer as well, you start looking for all the corner cases in your code." Prashant Sahdev says that in 2 months he finished the course "and finally got offers from Amazon India and Visa Inc India in my first attempts only." Mayank Gupta credits the streak: "Every day you are solving 1 or 2 problems and learning new concepts."

Who it suits

InterviewBit suits developers and computer science students with basic programming skills who are preparing for data structures, algorithms and system design interviews, and who respond well to daily targets and competition. It is also useful for anyone practicing SQL or shell scripting for interviews. Absolute beginners should learn a language first, since the FAQ expects basic programming before starting. Learners who want live classes and one-to-one mentors will find those in the Scaler programs linked from the site rather than in InterviewBit itself.