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Power-packed with features
Premium Questions
280+ interview questions covering problem solving, UI building, and quiz formats. Exclusive questions asked by top companies across the world and new questions constantly being added.
Company-tagged questions
Get an edge by preparing questions asked by respective companies.
Interview Roadmaps
Structured, step-by-step roadmaps that tell you what to learn and in what order. Track your progress and never wonder what to prepare next.
Frontend System Design Guide
In-depth guide and real-world case studies like Chat App, Calendar, Autocomplete, and Product Listing Page. Available with Yearly and Lifetime plans.
In-browser powerful workspace
In-browser IDE with real-time code execution, code completion, exclusive test cases, directory management, ability to use NPM packages, and more. No need for any setup!
High-quality solutions
Most of our questions contain high-quality editorial notes, solutions, and submissions from other users.
Real time AI feedback
Get real-time feedback on your code with our AI-powered code analysis tool. Understand your mistakes and improve your coding skills.
Free continuous updates
We are constantly adding more questions, resources, collections, and features to help you stay ahead in the game!
Focus areas
Enhance your preparation by concentrating on key topics and tackling topic-specific questions. It provides a structured and time-efficient approach will help you learn effectively and practice with purpose.
Resume Guide & AI Resume Review
Premium Resume Guide to help you build a resume that gets you shortlisted, plus a free AI resume reviewer that scores your resume against the job you want and gives you a prioritized list of fixes.
Loved by the Frontend Community
I got offers from Rubrik, Coinbase, CrowdStrike, Cred, and Rippling. I practiced frontend problems in vanilla JavaScript and React. This made me learn how JavaScript and React work inside. Thank you, Yomesh and team!
Ansh Shrivastava
Frontend Engineer
devtools.tech helped me prepare for interviews at product companies. It has many types of good problems in one place. The variety and structure are excellent. It saved me a lot of time.
Mainak Chakrabortty
Staff Software Engineer
devtools.tech helped me a lot in my frontend interview preparation. The content is focused and practical. I got 4 frontend offers. I recommend it to all frontend candidates.
Sagnik Ghosh
Frontend Engineer
I did not want to pay for interview prep. devtools.tech showed its value fast. Each question has company tags, so I knew what to prepare. Many companies asked me the same questions. The frontend system design guide gave me a clear framework.
Bidisha Das
Senior Member of Technical Staff
Most platforms focus on LeetCode-style questions. devtools.tech covers the topics that frontend interviews really ask. In a recent interview, I had to write a Promise polyfill. I solved it on devtools.tech before, with 18 test cases. I was ready for all the edge cases.
Saloni Kathuria
Computer Scientist II
devtools.tech helped me get 3 good offers. It has questions from the basics to the ones that top tech companies ask. The in-browser editor is easy to use. Some questions are unique. I did not find them on other platforms. Company tags and video tutorials help a lot when you have many interviews.
Tejas H N
Senior Frontend Engineer
The questions are rich and make you think deeply. This is one of the best resources for frontend interviews. It is underrated and deserves more attention.
Tushar Tiwari
Frontend Engineer
The content is excellent and practical. It covers JavaScript, TypeScript, React, and frontend system design. It helped me understand how things work inside, not only how to write code. The team adds new content frequently.
Karishma Golani
Senior Development Engineer - 2
I thought I was ready until I started to solve questions on devtools.tech. Then I saw the gaps in my knowledge. The YouTube channel explains complex concepts clearly. I used the platform and the videos together. With this combination, I got offers from PayU and Apollo.io.
Hardik Badola
Senior Frontend Engineer
Frontend interviews are difficult. There is no clear and affordable guide for system design. I use devtools.tech to practice JavaScript, polyfills, and UI refactoring. I train on it as an athlete trains on the field.
Jehu Shalom Amanna
Frontend Solutions Architect
devtools.tech has many curated questions at different difficulty levels. They gave me confidence and made my problem solving better. The practical exercises are similar to real interview questions. I recommend it to all who want offers at top tech companies.
Yashpreet Bathla
Senior Member of Technical Staff
devtools.tech has all you need for interview prep in one place: questions, video tutorials, collections, and company guides. It covers machine coding, UI challenges, quizzes, and frontend system design. I like the "Try a Random Question" feature. Yomesh explains each concept clearly, step by step. Thank you, Yomesh!
Dimple Kumari
Application Developer Experienced Front-end
I watched the devtools.tech YouTube channel first. Then I tried the platform. The questions and solutions are high quality. The platform is easy to use, and I can filter questions by company and difficulty. It is a great resource for frontend interviews.
Puneet Ahuja
Computer Scientist I
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