Top 5 AI Tools for Coding Interviews in 2025 (and Why StealthCoder Leads)
2025-08-31
The rise of AI has changed how engineers prepare for coding interviews. Instead of grinding hundreds of LeetCode problems by hand, many candidates now lean on AI-powered assistants. In 2025, there are several popular options, each promising to speed up interview prep or even provide real-time help.
Here are the top 5 AI tools for coding interviews in 2025 and why StealthCoder stands out from the crowd.
1) StealthCoder
What it is: A real-time interview assistant that works as an invisible overlay. With one shortcut you can capture your screen and StealthCoder instantly shows code solutions, explanations, and complexity. It also includes StealthDesign for system design interviews.
Why it leads:
- Covers both coding and system design
- Works on Windows, macOS, and Linux
- Affordable: $15/month billed annually or $40 month-to-month
- Completely invisible on Zoom, Teams, Google Meet, and more
- Local-first design keeps your data private
For candidates who want one tool that can handle all technical rounds, StealthCoder is the most complete solution.
👉 Try it here: https://stealthcoder.app
2) InterviewCoder
What it is: An AI assistant focused on LeetCode-style coding problems. It provides real-time answers in a floating window and markets itself as “undetectable.”
Strengths: Good for quick algorithmic help, multiple language support, free plan available.
Weaknesses: No system design coverage, limited Linux support, some reports of detection depending on platform, higher cost ($25/month annually or $60 month-to-month).
3) GitHub Copilot
What it is: An AI pair programmer built into editors like VS Code and JetBrains. Copilot suggests completions and entire code snippets as you type.
Strengths: Excellent for practicing coding in an IDE, helps with syntax and boilerplate, widely adopted.
Weaknesses: Not built for interview stealth. It is useful for practice but not a live coding interview tool.
4) ChatGPT (Pro with GPT-4 or GPT-o1)
What it is: A general AI chatbot from OpenAI that can answer coding questions, generate solutions, and explain algorithms.
Strengths: Highly flexible, can generate explanations, pseudocode, or code in many languages. Good for practice and learning.
Weaknesses: Requires copy-pasting questions in and out. Not invisible during an interview. Answers can vary in quality on complex problems.
5) Codeium
What it is: A free AI code completion tool similar to Copilot. It integrates into IDEs and helps autocomplete solutions while you type.
Strengths: Free to use, strong autocomplete, good for practice.
Weaknesses: Like Copilot, not designed for interview stealth. Focused on coding, no system design features.
Final Thoughts
AI interview assistants are here to stay. Copilot, ChatGPT, and Codeium are great practice tools. InterviewCoder adds stealth but only for coding problems.
StealthCoder is the only tool that covers both coding and system design while staying completely invisible. Add in its affordable pricing, Linux support, and local-first privacy, and it is clear why StealthCoder leads the list of AI tools for coding interviews in 2025.
If you are preparing for interviews this year, give StealthCoder a try and see the difference for yourself.
👉 Get started with StealthCoder
Keywords: AI tools for coding interviews, interview AI assistant, LeetCode AI tool, system design interview help, InterviewCoder alternative, coding interview overlay.