Top 12 Online Technical Interview Platforms

Online technical interview platforms are essential tools for evaluating candidates’ programming, problem-solving, and system design abilities in real time. They streamline tech hiring by enabling standardized coding assessments, live interviews, and data-driven analytics. Selecting the right platform from the many available options can be challenging.

A well-designed solution delivers measurable benefits for hiring managers, including improved efficiency, enhanced candidate experience, objective evaluation, and better data insights. According to a Gartner survey conducted in November and December 2022, 86% of CIOs reported facing more competition for qualified candidates, and 73% were worried about IT talent attrition.

In this blog, we explore 12 online technical interview platforms that can help streamline the hiring process and elevate technical recruiting outcomes.

Top 12 Online Technical Interview Platforms

#1 iMocha

iMocha is an AI-powered online technical interview platform designed to help hiring teams evaluate candidates more effectively. It offers customizable assessments, real-time coding interviews, and automated tools tailored to a wide range of technical roles. With built-in proctoring, coding simulators, and advanced analytics, iMocha helps reduce time-to-hire and improve the accuracy of technical evaluations. 

Key Features:

• Customizable tests to build role-specific assessments aligned with job requirements and tech stacks.
• AI-based proctoring to ensure test integrity with webcam monitoring, browser tracking, and fraud detection.
• Coding simulators replicate real-world environments for hands-on evaluation of programming skills.
• Live coding interviews for collaborative, real-time problem solving with built-in compilers and whiteboarding.
• AI-powered interviewer (Tara) to automate first-round screening with contextual questions and AI-based scoring. 

G2 Rating: 4.4 out of 5 stars (267 reviews)

Pricing: Visit iMocha's pricing page for more details.

#2 HackerRank

HackerRank is a coding interview tool designed to help companies evaluate the technical skills of potential candidates in software development, data science, and more. It offers tools for conducting coding challenges, technical assessments, and interviews.

Key Features:

• Coding challenges to test a candidate's skills in a particular programming language or technology stack.
• Technical assessments to evaluate a candidate's skills in data structures, algorithms, databases, and web development.
• HackerRank proctoring provides a variety of automated and instantaneous proctoring solutions to maintain the integrity of applicants throughout assessments. 
• Interview tool to conduct live coding interviews and whiteboard sessions remotely.

G2 Rating: 4.5 out of 5 stars (375 reviews)

Explore the competitive advantage of iMocha over Hackerrank. 

#3 Coderbyte

Coderbyte is a coding assessment platform built for early-stage tech screening. It offers a wide range of coding challenges, interview prep tools, and customizable assessments to help recruiters evaluate candidates’ problem-solving skills. 

Key Features: 

• Coding challenges to test a candidate’s skills across more than 30 programming languages.
• Custom assessments to match specific job roles and technical requirements.
• Real-time code editor with syntax highlighting and built-in compiler.
• Performance analytics to track scores, strengths, and areas of improvement.

G2 Rating: 4.5 out of 5 stars (328 reviews)

#4 CoderPad

CoderPad is a technical interview platform designed to help hiring teams assess candidates' coding skills in real-time. It offers a collaborative coding environment that supports over 30 programming languages, enabling interviewers and candidates to write, execute, and debug code together.

Key Features:

• Provides a collaborative coding environment for real-time technical interviews.
• Offers take-home projects with automated test case scoring for asynchronous assessments.
• Includes code playback functionality to review candidates' coding sessions.
• Supports over 30 programming languages with built-in compilers and syntax highlighting.

G2 Rating: 4.4 out of 5 stars (227 reviews)

#5 CodeInterview

CodeInterview is a cloud-based technical interview tool that enables hiring teams to conduct real-time coding assessments with candidates. It offers a collaborative coding environment, supports multiple programming languages, and includes features like audio/video communication and code playback to streamline the interview process. 

Key Features:

• Provides a collaborative code editor with syntax highlighting and real-time code execution.
• Supports audio and video communication during interviews for seamless interaction.
• Offers code playback functionality to review candidates' problem-solving approaches.
• Includes a library of coding questions and templates for various roles and difficulty levels. 

G2 Rating: 4.5 out of 5 stars (52 reviews)

#6 LeetCode

LeetCode is a online technical interview tool designed to help hiring teams assess candidates' coding skills through real-time coding challenges and collaborative interviews. It offers a vast library of algorithmic problems, mock interviews, and company-specific question sets to streamline the technical hiring process. 

Key Features: 

• Provides a vast library of algorithmic problems covering various topics and difficulty levels.
• Offers mock interviews and timed assessments to simulate real interview scenarios.
• Includes company-specific question sets to target preparation for specific employers.
• Supports collaborative coding interviews with real-time code execution and whiteboard features.

G2 Rating: 4.8 out of 5 stars (11 reviews)

#7 Codility

Codility is a technical interview software that provides coding challenges and assessments to help companies assess the technical skills of developers during the hiring process. The platform offers various challenges and assessments designed to test a range of programming skills, including problem-solving, algorithm design, data structures, and more.

Key Features:

• Provides a library of coding tasks across various difficulty levels and programming languages.
• Offers real-time coding environments for live technical interviews.
• Includes automated scoring and plagiarism detection to ensure assessment integrity.
• Delivers detailed analytics and reports to inform hiring decisions. 

G2 Rating: 4.6 out of 5 stars (407 reviews)

Explore the competitive advantage of iMocha over Codility. 

#8 Devskiller

DevSkiller is a technical assessment platform designed to evaluate developers' skills through real-world coding tasks. It offers customizable tests, automated scoring, and detailed analytics to streamline the hiring process.

Key Features:

• Provides real-world coding tasks that simulate actual job challenges.
• Offers customizable assessments tailored to specific roles and technologies.
• Includes automated scoring and detailed analytics for objective evaluation.
• Supports over 220 technologies, including programming languages and frameworks. 

G2 Rating: 4.7 out of 5 stars (60 reviews)

#9 Karat

Karat is a technical interview software that helps companies conduct consistent and fair technical interviews at scale. By leveraging a network of experienced Interview Engineers and a purpose-built interviewing infrastructure, Karat enables organizations to efficiently assess candidates' technical abilities. 

Key Features: 

• Provides a network of experienced Interview Engineers to conduct technical interviews.
• Offers a purpose-built interviewing platform with structured scoring rubrics.
• Delivers on-demand interview scheduling to accommodate candidates globally.
• Supports over 100 programming languages and frameworks for comprehensive assessments.

G2 Rating: 4.2 out of 5 stars (12 reviews)

#10 Mettl

Mettl is an online assessment platform that provides organizations with tools to measure and analyze their employees' skills, knowledge, and abilities. It offers a range of assessments, including cognitive ability tests, domain-specific tests, personality tests, and job-specific tests, among others.

Key Features:

• Offers a library of pre-built coding assessments, customizable coding assessments, and psychometric tests.
  
• Offers AI-powered remote proctoring to maintain assessment integrity and prevent malpractice.
• Includes customizable coding assessments with real-time code evaluation and detailed analytics. 

G2 Rating: 4.4 out of 5 stars (499 reviews)

Explore the competitive advantage of iMocha over Mercer Mettl. 

#11 CodeSignal

CodeSignal is a web-based platform that offers a variety of coding challenges, assessments, and interview preparation tools for software engineers. It aims to help companies and individual developers improve their coding skills and make hiring and job searching more efficient.

Key Features:

• Offers company challenges that allow employers to evaluate the coding skills of potential candidates.
• Challenges can be customized to fit the specific needs of the company and can help identify top talent quickly and efficiently.
• Offers real-time coding environments for live technical interviews.
• Includes automated scoring and plagiarism detection to ensure assessment integrity. 

G2 Rating: 4.5 out of 5 stars (729 reviews)

#12 TestDome

TestDome is an online assessment platform designed to help organizations evaluate candidates' technical and non-technical skills through a variety of assessments. It aims to help companies find and hire top talent by providing them with accurate and reliable test results.

Key Features:

• Offers a library of over 1,300 questions across programming, finance, customer service, and other domains.
• Provides customizable assessments tailored to technical and non-technical roles.
• Supports integration with ATS platforms for smoother candidate management. 

G2 Rating: 4.5 out of 5 stars (108 reviews)

Conclusion

Choosing the right technical interview software can make a measurable difference in the quality, speed, and fairness of your hiring process. From live coding sessions to automated tools and structured analytics, these platforms bring consistency and clarity to candidate evaluations.

iMocha stands out for its comprehensive features, from role-specific skill assessments to actionable reporting. Whether hiring at scale or for specialized roles, it enables teams to identify top candidates quickly and confidently.

FAQs

1. What is a technical interview platform?

A technical interview platform is software that helps companies assess the skills of candidates applying for technical roles. It typically includes coding challenges, live coding sessions, automated scoring, and analytics to support structured and fair evaluations.

2. Which platform is best for technical interviews?

The best platform depends on your hiring needs, budget, and the roles you're hiring for. iMocha, HackerRank, CodeSignal, and CoderPad are among the top choices. iMocha is especially strong for customizable assessments, AI-powered features, and enterprise-scale hiring.

3. What roles can be evaluated using online technical interview platforms?

These platforms can assess roles like software developers, data scientists, DevOps engineers, QA testers, and other technical specialists.