Preparing for technical interviews can be a daunting task. With countless platforms offering coding problems, mock interviews, and prep tools, choosing the right one can make a big difference in your job search. This guide compares 7 leading technical interview platforms based on difficulty, user experience, features, and pricing. Whether you’re a beginner or preparing for a FAANG interview, these platforms offer something valuable.

 

1. LeetCode

Overview:

LeetCode is arguably the most popular among technical interview platforms. It offers a wide range of coding problems categorized by company and topic.

Pros:

• Extensive problem set (over 2,000+)
   

• Company-specific questions (e.g., Google, Amazon)
   

• Active community discussions
   

• Mock interview tools
   

Cons:

• Limited explanations for free users
   

• UI can be overwhelming for beginners
   

Pricing:

• Free version available
   

• Premium: $35/month or $159/year
   

Best For: Mid-to-advanced developers targeting top tech companies

 

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2. HackerRank

Overview:

HackerRank focuses on coding challenge sites that simulate actual hiring tests. Many companies use it in their recruitment pipelines.

Pros:

• Used by hiring companies (real-world practice)
   

• Structured skills assessments
   

• Interview preparation kits
   

Cons:

• Less community discussion compared to LeetCode
   

• UI feels more enterprise-focused
   

Pricing:

• Free
   

Best For: Candidates preparing for coding screens and online assessments

 

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3. CodeSignal

Overview:

CodeSignal is known for its standardized assessments and interview prep tools for both individuals and companies.

Pros:

• General Coding Assessment (GCA) used by many employers
   

• Data-driven feedback and scores
   

• Great UI and analytics dashboard
   

Cons:

• Limited problem set outside of GCA
   

• Not as many practice questions as LeetCode
   

Pricing:

• Limited free access
   

• Custom pricing for premium access (mainly for employers)
   

Best For: Students and early-career professionals applying to companies that use CodeSignal

 

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4. Interviewing.io

Overview:

This platform offers mock interviews with real engineers, sometimes anonymously, which sets it apart.

Pros:

• Free mock interviews with engineers from Google, Facebook, etc.
   

• Real-time feedback
   

• Audio-based sessions to simulate real interviews
   

Cons:

• Limited to users who pass a screening process
   

• Smaller library of practice questions
   

Pricing:

• Free (invite-only for mock interviews)
   

Best For: Candidates who want live mock interviews with industry pros

 

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5. Exercism

Overview:

Exercism is an open-source coding platform focusing on mentorship and real-world practice.

Pros:

• Free mentoring from volunteers
   

• Community-driven
   

• Great for learning new languages
   

Cons:

• Not interview-focused
   

• No company-specific questions
   

Pricing:

• Completely free
   

Best For: Learners wanting to build foundational skills with mentoring

 

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6. Pramp

Overview:

Pramp connects you with peers for mock interviews via a shared code editor and video chat.

Pros:

• Free 1:1 mock interviews
   

• Covers data structures, behavioral, and system design
   

• Helpful review and feedback cycle
   

Cons:

• Peer skill levels may vary
   

• Scheduling requires commitment
   

Pricing:

• Free
   

Best For: Practicing interactive coding interviews in a real-time environment

 

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7. AlgoExpert

Overview:

AlgoExpert offers curated content and videos focused on tech interview practice for software engineering roles.

Pros:

• 160+ curated questions
   

• High-quality explanation videos
   

• Includes system design, behavioral, and database prep
   

Cons:

• Paid-only platform
   

Less variety than LeetCode