17 Data Structures and Algorithms Sites to Prepare for Tech Interviews 👨‍💻👩‍💻
Tags: coding, programming, career, interview
Published: 2024-01-30 15:01:22

---
title: 17 Data Structures and Algorithms Sites to Prepare for Tech Interviews  👨‍💻👩‍💻
published: true
description: 
tags: coding, programming, career, interview
cover_image: https://dev-to-uploads.s3.amazonaws.com/uploads/articles/kjpq1pvlq34c43j8icvs.png
canonical_url: https://madza.hashnode.dev/17-data-structures-and-algorithms-sites-to-prepare-for-tech-interviews
---
In today's digital age, technical interviews are highly competitive, with many qualified candidates applying for limited positions.

Success in technical interviews relies heavily on preparation. Understanding the interview process, and common questions, and having practiced scenarios enhances your performance significantly.

I've compiled some of the most useful resources for DSAs, interview practice sites, commonly asked technical questions, and sites to build practical projects to help you approach various scenarios with confidence.

Prepare to embark on an exciting coding journey, and I hope this collection will provide some useful practical value for you!

---

## 📈 Data Structures and Algorithms

### 1\. Algorithm-visualizer

An interactive online platform that visualizes algorithms from code.

![Algorithm-visualizer](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621133584/bace8b2c-ba89-4ab3-b890-495fdf7fd479.png)

👉 [https://algorithm-visualizer.org/](https://algorithm-visualizer.org/)

### 2\. Visualgo

Visualizing data structures and algorithms through animation.

![Visualgo](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621239794/91f7dc85-0990-4eb0-915d-3497e1bebfe9.png)

👉 [Visualgo.net](http://Visualgo.net)

### 3\. Algoanim

A collection of computer science algorithm animations and visualizations.

![Algoanim](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621282746/86aa6d9a-bf61-4073-ae60-56eaa7b0dff9.png)

👉 [http://algoanim.ide.sk/](http://algoanim.ide.sk/)

### 4\. USF

Tons of visualizations for the following data structures and algorithms.

![USF](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621331513/b7046dc2-0659-4d24-9645-87a61cd50fe1.png)

👉 [https://www.cs.usfca.edu/~galles/visualization/Algorithms.html](https://www.cs.usfca.edu/~galles/visualization/Algorithms.html)

### 5\. Sorting algorithms

Illustrate how effectively data sets from different starting points can be sorted using different algorithms.

![Sorting algorithms](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621384917/60d859d4-e11c-4a24-b28f-5ff986b522b8.png)

👉 [https://www.toptal.com/developers/sorting-algorithms](https://www.toptal.com/developers/sorting-algorithms)

---

## 🔎 Interviews

### 6\. Leetcode

One of the leading platforms to help you enhance your skills, expand your knowledge, and prepare for technical interviews.

![Leetcode](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621429624/36c5755d-5ef1-440d-bf47-0559d3b36670.png)

👉 [https://leetcode.com/](https://leetcode.com/)

### 7\. Interviewing .io

Anonymous technical mock interviews with engineers from Google, Facebook, and other top companies.

![Interviewing .io](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621471948/0c5056cf-8d52-4db2-9ef1-f88f57fb749e.png)

👉 [https://interviewing.io/](https://interviewing.io/)

### 8\. Coding interview university

A complete computer science study plan to become a software engineer.

![Coding interview university](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621566115/a3ff012d-1e2d-44e9-945a-bb62588ab9e0.png)

👉 [https://github.com/jwasham/coding-interview-university](https://github.com/jwasham/coding-interview-university)

### 9\. JavaScript algorithms

Algorithms and data structures implemented in JavaScript with explanations.

![JavaScript algorithms](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621613382/5026f826-c2bf-4964-9867-dd8d370a920e.png)

👉 [https://github.com/trekhleb/javascript-algorithms](https://github.com/trekhleb/javascript-algorithms)

### 10\. JavaScript questions

A list of JavaScript questions, and their explanations.

![JavaScript questions](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621710579/0246a2ea-5b24-43ee-92f5-6ef4ce3aa4dc.png)

👉 [https://github.com/lydiahallie/javascript-questions](https://github.com/lydiahallie/javascript-questions)

### 11\. Awesome interview questions

A curated awesome list of lists of interview questions in various languages.

![Awesome interview questions](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621772839/165421c0-d57b-4cd6-a7de-40c395d371c5.png)

👉 [https://github.com/DopplerHQ/awesome-interview-questions](https://github.com/DopplerHQ/awesome-interview-questions)

---

## 🧑‍💻 Projects

### 12\. Frontend Mentor

Improve your front-end skills by building real projects. Solve real-world HTML, CSS, and JavaScript challenges whilst working on professional designs.

![Frontend Mentor](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621868574/a39ac3d5-18f7-4a05-95e0-eedf2c1084d2.png)

👉 [https://www.frontendmentor.io/](https://www.frontendmentor.io/)

### 13\. DevChallanges

Web Development Resources and Community that help you to become a Web Developer by working with Real-life projects and practices.

![DevChallanges](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621913576/acfe5b37-b703-4b3f-84ee-1e6e6ec7e3e5.png)

👉 [https://devchallenges.io/](https://devchallenges.io/)

### 14\. CSS Battle

Use your CSS skills to replicate targets with the smallest possible code. Feel free to check out the targets below and put your CSS skills to the test.

![CSS Battle](https://cdn.hashnode.com/res/hashnode/image/upload/v1706621958855/eae106da-d618-4827-95f4-cfdea9f4f7e2.png)

👉 [https://cssbattle.dev/](https://cssbattle.dev/)

### 15\. iCodeThis

Daily practical projects you can build to improve your coding skills!

![iCodeThis](https://cdn.hashnode.com/res/hashnode/image/upload/v1706622147880/a9fccc28-4b4d-411f-abba-e51b4e9e5a96.png)

👉 [https://www.icodethis.com/](https://www.icodethis.com/)

### 16\. JavaScript 30

Starter Files + Completed solutions for the JavaScript 30-Day Challenge by Wes Bos.

![JavaScript 30](https://cdn.hashnode.com/res/hashnode/image/upload/v1706622194455/1611f64c-98b1-4e3f-b641-f16bd9439be4.png)

👉 [https://javascript30.com/](https://javascript30.com/)

### 17\. JSChallenger

Provides a variety of exercises, including coding tasks, coding challenges, lessons, and quizzes.

![JSChallenger](https://cdn.hashnode.com/res/hashnode/image/upload/v1706622254474/f8fff9c0-4137-4358-94df-84747d93dade.png)

👉 [https://www.jschallenger.com/](https://www.jschallenger.com/)

---

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