Reddit Mod Tools and Migrated Apps Hackathon Online Join Reddit to build moderation tools for the Reddit community! $45,000 in prizes Winners announced 3088 participants
Designathon Spring 2026 Online UI UX and branding competition. Non-monetary prizes Winners announced 98 participants
HackDays Greater Noida, India Best use of Gemini API Key Non-monetary prizes Apr 1 – 11, 2026 121 participants