How it Works See a Review About Pricing
Start for Free → Login to Dashboard
Production-Grade Coding Platform

Your code runs.
But will it survive a real code review?

Most CS students write code that works — but gets rejected in interviews and real teams.
Perpex shows you exactly why, and how to fix it. Real tasks. Real AI reviews. Real production standards.

Start for Free → See a sample review
5,000+
Developers trained
120+
Review checkpoints
4.8 ★
Average rating
★★★★★ Google Reviews

Registered company · Perpex Innovations LLP, Kerala, India

Real AI Review Output

This is what a senior engineer review actually looks like.

Every time you submit code on Perpex, our AI reviews it across 120+ production checkpoints — the same things a senior developer at a real company would check before merging your PR.

  • Security vulnerabilities — SQL injection, auth flaws, missing rate limits
  • Performance issues — N+1 queries, blocking calls, missing indexes
  • Code quality — anti-patterns, dead code, naming conventions
  • Production best practices — logging, error handling, async patterns
Start for free →
Perpex AI code review dashboard showing detailed feedback on a Python submission — security issues, performance warnings, and a score of 74 out of 100

How It Works

Four steps. Real results.

No fixed schedule. No curriculum. Pick a task, write code, get reviewed — exactly how it works on a real dev team.

  1. STEP 01

    Choose your language

    Python, JavaScript, C, C++ and more. Pick what you're learning or what you want to get hired in.

  2. STEP 02

    Pick a task by difficulty

    Browse real production problems — Easy, Medium, Hard. Not textbook exercises. Not LeetCode puzzles.

  3. STEP 03

    Submit your code

    Write your solution and submit. The AI immediately evaluates it across 120+ production checkpoints.

  4. STEP 04

    Get a real code review

    Structured feedback — bugs, security gaps, improvements — exactly how a senior developer reviews a PR.

Developers trained
5,000+
Review checkpoints
120+
Supported languages
4+ langs
Average rating
4.8 ★

Developer Stories

What CS students actually say.

From final-year students to freshers who got placed.

Final Year CS · Bengaluru

The AI reviews are brutally honest — in a good way

"I thought my code was fine. The review flagged a security issue, two performance problems, and an anti-pattern I'd been writing for years. Embarrassing but invaluable. No mentor would have been that thorough."
Bengaluru, India
Final Year CS · Hyderabad

Campus placements were 3 months away — Perpex saved me

"I had no real project experience. I completed 12 tasks across Python and JavaScript and walked into placement interviews actually knowing what I was talking about. Got placed in my first attempt."
Hyderabad, India
Fresher · Career Switcher

Got my first developer job offer after 3 months

"I'm a career switcher with no CS degree. The completed tasks gave me real work to show in my portfolio. Interviewers asked specifically about my Perpex submissions. Got my first offer in 3 months."
Career Switcher
CS Student · Tutorial Hell Survivor

From tutorial hell to writing code I'm proud of

"I spent months watching YouTube tutorials and building nothing. Perpex flipped that. I pick a task, write real code, get reviewed. The feedback is specific and honest — nothing like the vague 'good job' I got elsewhere."
Student Developer
Python Developer · 3 months in

I learn more from one review than a week of tutorials

"After a few tasks, I started writing better code before submitting — because I already knew what the review would say. That's real learning. 120+ checkpoints catches things I'd never think to look for on my own."
Python Developer

Stop guessing if your code
is good enough.

Try for free — exactly how a senior engineer would do it.

Start for Free → Login to Dashboard

Free to start · No credit card · Takes 2 minutes to sign up

About Perpex

We give you the experience
before the job.

Most companies won't hire someone who only knows syntax. Perpex bridges that gap — real production tasks, real AI-powered code reviews, and a verifiable skill record employers can actually evaluate.

  • Tasks across Python, JavaScript, C, C++ — your choice
  • AI evaluates code against 120+ production checkpoints
  • CREDO Score — a verifiable skill record shown to recruiters
  • Easy, Medium, Hard tasks — start where you are, grow fast
Start for Free →
Perpex dashboard showing available coding tasks sorted by difficulty — Easy, Medium, Hard — with CREDO score progress tracker

Common Questions

Everything you want to know about Perpex

Answers to the most common questions from CS students and developers across India.

Perpex is a Production grade Coding Practice platform for CS students in India, operated by Perpex Innovations LLP (Kerala). Students solve real engineering tasks and receive automated reviews across 120+ checkpoints — the same standard senior engineers apply during code reviews at top tech companies.

LeetCode and HackerRank test if your algorithm produces the correct output. Perpex tests if your code is production-ready — covering security (SQL injection, auth flaws, missing rate limiting), performance (N+1 queries, blocking calls), code quality (naming, anti-patterns), error handling, logging, and engineering best practices. This is what companies actually evaluate.

Yes. Perpex is free to start. The free plan gives access to beginner tasks with AI reviews on each submission. Premium plans unlock unlimited submissions, all difficulty levels, and a hiring-visible profile. No credit card required to sign up.

Perpex supports Python, JavaScript, C, and C++. Browser-based execution is available for Python and JavaScript without any setup. You can choose the language you are learning or the one you want to get hired in.

Every Perpex submission is reviewed across 120+ checkpoints covering: security vulnerabilities (SQL injection, auth flaws, missing rate limits), performance (N+1 queries, blocking async calls, missing DB indexes), code quality (anti-patterns, dead code, naming conventions), error handling (missing try/catch, unhandled edge cases), production practices (logging, audit trails, async patterns), and test coverage expectations.

CREDO Score is Perpex's verifiable skill record system. It aggregates your scores across all submitted tasks into a single, shareable profile. Companies hiring through Perpex see your CREDO Score — so your skills are evaluated on actual code quality, not just your resume or college name.

Yes. Perpex connects companies — primarily Indian tech startups and product companies with 10–100 employees — with students who have completed tasks and scored well. Companies in Kerala, Bangalore, Hyderabad, and Chennai have hired through Perpex. The hiring fee ranges from Rs 5,000 to Rs 15,000 per placement.

Perpex is operated by Perpex Innovations LLP, registered at 10/1744, 1st Floor, Sowbhagya Building, Kakkanad, Ernakulam, Kerala, India — 682030. The platform primarily serves CS students across South India including Kerala, Tamil Nadu, Karnataka, Andhra Pradesh, and Telangana.

Contact Us

Have questions?
We're happy to help.

Not sure if Perpex is right for you? Ask us anything about the platform, CREDO Score, pricing, or which language to start with.

Email us[email protected]
Address10/1744, Sowbhagya Building, Kakkanad, Ernakulam, Kerala — 682030
LinkedInlinkedin.com/company/perpex-code

Send us a message