Free level editors · right in your browser

Build a level.
Let the world play it.

Paint terrain, place enemies, springs and secrets, then publish your level straight into the game. Players find it in the community list, play it and rate it.

Build for Leaf Build for Kikky

Sign in with Google or your Lello's Big World account. A short guide shows you every tool the first time.

Step 1

Choose the game you want to build for

Each game has its own editor, blocks and characters. Your levels stay with their game and you can switch at any time.

Leaf Outside Alone

LeafOutside Alone

Fast paths, sweeping loops and hidden routes. Design a run that rewards speed and curiosity.

  • Terrain painting
  • Loops
  • Springs
  • Gems
  • Enemies
  • Moving platforms
Open the Leaf editor →
Kikky

KikkyIn Long Shadow Valley

Gothic ruins, frozen kingdoms and lava forges. Build paths, traps and cages to rescue Kikky's friends.

  • Terrain painting
  • Caged friends
  • Chests
  • Enemies
  • Ladders
  • Custom size
Open the Kikky editor →

How it works

From blank grid to the game in four steps

No downloads and no coding: everything happens on this website.

  1. Sign inUse Google or your Lello's Big World account and pick the nickname players will see.
  2. CreatePress NEW, name your level and choose a world. The guide walks you through every tool.
  3. BuildPaint the terrain, then place the start, enemies, items and the exit. Save as often as you like.
  4. PublishYour level appears in the game's community list, where players play it and give it up to 10 stars.
Top levelsSee the best levels built by the community, ranked by player ratings, and get ideas for your own.View the leaderboard →

Keep it fun for everyone. These games are played by children and families: offensive or inappropriate levels can be reported by players and are removed.