Clumsy Bird

Clumsy Bird, the open-source flappy classic built on MelonJS — one tap to flap, endless pipes to thread, hosted unmodified with GPL-3.0 source included.

Clumsy Bird · open source (GPL-3.0), hosted unmodified with source · credits

How to play Clumsy Bird

The one-tap classic, open-sourced

Clumsy Bird is the internet's beloved open-source take on the flappy genre, built on the MelonJS game engine. One input — tap to flap — against an endless corridor of pipes. It's proof that a game's entire depth can live inside a single button.

How to play

Click, tap, or press space to flap upward. Gravity does the rest, relentlessly.
Thread the pipe gaps. Touch a pipe or the ground and it's back to zero — flappy games don't do second chances.
Score = pipes passed. Double digits is respectable. Twenty puts you in the focused elite.

The zen of the flap

The genre's secret is rhythm, not reaction: consistent small taps near the top of each arc keep you level, while big panic flaps send you into the ceiling. Find your cadence on the first three pipes, then protect it. Blink-scores are the norm — this is a five-minutes-at-a-time game, and always has been.

Clumsy Bird is GPL-3.0 licensed; we host an unmodified copy with source and license included. Credit to creator Ellison Leão and contributors.

Frequently asked questions

How is this different from the famous flappy game?

Same genre, open implementation — Clumsy Bird was built as a free, open-source alternative using the MelonJS engine, so anyone can learn from, modify, or host the code. That's why we can share it with you here.

Best input method?

Spacebar on desktop, tap on mobile. Both register identically — consistency matters more than speed. Learn one input's rhythm and stay with it.

Why does my score reset so often?

Gravity is undefeated. The median first-session score in this genre is famously low — the entire skill is calm, rhythmic tapping, which takes a few runs to find.