One platform to learn concepts, drill a 5,000+ question bank, and compete on live leaderboards — with an AI copilot that explains, hints, and reviews your code line by line.
1// Two Sum — O(n) with a hash map2function twoSum(nums: number[], target: number): number[] {3 const seen = new Map<number, number>();4 for (let i = 0; i < nums.length; i++) {5 const need = target - nums[i];6 if (seen.has(need)) return [seen.get(need)!, i];7 seen.set(nums[i], i);8 }9 return [];10}
Move fluidly from learning a concept, to drilling it, to proving it under pressure.
Concept-first lessons with an AI tutor that adapts to how you think. Ask why, not just how.
5,000+ tagged problems across difficulty tiers. Get hints when stuck — never the answer.
Live contests with peers. Climb the leaderboard, earn streaks, get recruiter-visible badges.
DSA and SQL are where most placement candidates struggle. Forge is purpose-built for both.
Forge ships a full IDE-grade workspace in the browser — multi-file, debug-ready, git-aware, and AI-assisted by default.
1// Two Sum — O(n) with a hash map2function twoSum(nums: number[], target: number): number[] {3 const seen = new Map<number, number>();4 for (let i = 0; i < nums.length; i++) {5 const need = target - nums[i];6 if (seen.has(need)) return [seen.get(need)!, i];7 seen.set(nums[i], i);8 }9 return [];10}
Join thousands of students who use Forge to learn, drill, and win interviews — at their own pace, with AI by their side.