Lachezar Atanasov (lachezarat)

Kiroween 2026

Online

Build something wicked and git commit to the darkness.

$100,000 in prizes
Dec 04, 2026 05:00 PM EST to submit
10191 participants

#BuildHybridAI 2026

Online

Build AI apps that run on-device and in the cloud with Firebase AI Logic.

$30,000 in prizes
Submissions open soon
979 participants

RevenueCat Shipaton 2026

Online

Ship apps and start making money.

$740,000 in prizes
Winners announced
28561 participants

The WebMCP Challenge

Online

10 days for exploring what’s possible with WebMCP

$35,000 in prizes
Winners announced
7042 participants

OpenAI Build Week

Online

Join a global week of building with Codex

$100,000 in prizes
Winners announced
46661 participants

Global AI Hackathon Series with Qwen Cloud

Online

Build your own AI Agent on Qwen Cloud - compete for $70K in prizes across five tracks.

$45,000 in prizes
Winners announced
8434 participants

UiPath AgentHack

Online

Build the AI agents of tomorrow.

$50,000 in prizes
Winners announced
3998 participants

H0: Hack the Zero Stack with Vercel v0 and AWS Databases

Online

Front-end in minutes. Back-end designed for scale.

$80,000 in prizes
Winners announced
9575 participants

DeveloperWeek 2026 Hackathon

San Jose, CA, USA

Join the nation's largest challenge-driven in-person and online hackathon @ DeveloperWeek 2026!

$23,000 in prizes
Feb 2 – 20, 2026
1797 participants

RevenueCat Shipyard: Creator Contest

Online

Collaborate with creators to build their app in 1 month

$165,000 in prizes
Winners announced
7042 participants

Gemini 3 Hackathon

Online

Build what's next

$100,000 in prizes
Winners announced
35498 participants

Sky’s the Limit - Cloud9 x JetBrains Hackathon

Online

Reimagine the future. Make it happen. With code.

$25,000 in prizes
Winners announced
2261 participants

Hex-a-thon

Online

Build the analysis you wish existed. Join Hex's virtual hackathon to analyze, build, and explore data with AI — all in one place.

$10,000 in prizes
Winners announced
1448 participants

Kiroween

Online

Build something wicked for Kiroween, our annual Halloween-themed hackathon where developers dare to code in dark mode

$100,000 in prizes
Winners announced
4958 participants