Colloabuilder | The Digital Forge

WHERESTUDENTS

Build.Collaborate.

Master DSA. Ship production projects with elite teams. Bridge the gap between learning and getting hired.

Practice DSAShip Real ProjectsCollaborate LiveClimb the LeaderboardGet Hired FasterAI Code ReviewsDeploy in SecondsBuild With TeamsPractice DSAShip Real ProjectsCollaborate LiveClimb the LeaderboardGet Hired FasterAI Code ReviewsDeploy in SecondsBuild With Teams

0+Developers

0+Active Teams

0+Projects Shipped

0K+Problems Solved

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Platform Modules

One platform.
The full journey.

Practice Arena

500+ algorithmic challenges. Live code editor, editorial hints, timed contests.

DSA

Team Workspaces

Form squads of 2–8. PR reviews, role-based access, shared file trees.

Collab

Verified Portfolio

Every project you ship is auto-verified. Recruiters see live previews.

Portfolio

Global Leaderboard

Earn XP, unlock ranks, compete with developers worldwide in real time.

Rankings

AI Mentorship

Smart hints, personalized learning paths, and automated code reviews.

Deploy Pipeline

One-click preview URLs. Real CI/CD in the browser without leaving Colloabuilder.

DevOps

Module 01

Solve with
purpose.

The Practice Arena transforms theory into measurable skill. Solve DSA challenges, then apply those patterns in live projects with your team.

Enter Arena

fibonacci_opt.js

1function fibonacci(n) {

2 if (n <= 1) return n;

3 let a = 0, b = 1;

4 for (let i = 2; i <= n; i++) {

5 let temp = a + b;

6 a = b; b = temp;

7 }

8 return b;

Test Results

fibonacci(10)✓ 55

fibonacci(0)✓ 0

fibonacci(20)✓ 6765

Live Activity Stream

feat: add Fibonacci memoization

arjun_dev · 2m ago

fix: edge case n=0 returns wrong

priya.codes · 14m ago

chore: update test coverage to 94%

sara.builds · 1h ago

Deploy StatusLive

Build12s

Tests28s

Deploy4s

Module 02

Real engineering.
Real teams.

Every project gets a full professional environment — issue trackers, pull requests, shared file trees, and deployment previews — all in your browser.

Explore Workspaces

Outcomes

Student placement rate

0.0x

Faster hiring outcomes

0K+

Hours of code shipped

Module 03

Track growth.
In real time.

XP, streaks, problem-solve rate, and team metrics in one dashboard. Watch your progress compound — day by day.

View Dashboard

XP Dynamics

Peak XP

Jan

Feb

Mar

Apr

May

Jun

Comparison

Why Colloabuilder?

Feature	Colloabuilder	LeetCode	GitHub
Coding Practice (DSA)	✓	✓	—
Team Collaboration	✓	—	✓
Project Workspaces	✓	—	✓
Auto-Verified Portfolio	✓	—	—
Recruitment Connection	✓	✓	—
Learning + Shipping	✓	—	—

Pricing

Simple plans.
No surprises.

Starter

$0/mo

Perfect for individuals learning DSA and building their first projects.

100 DSA problems
1 project workspace
Public portfolio
Global leaderboard
Community support

Get Started Free

One platform.The full journey.