level-editor

A high-speed browser game engine for rapid creation and full customization, combining procedural systems, automated playtesting, and a streamlined editor designed to keep you building without interruption.

Tascii Level Editor - An ASCII Level Editor right on the browser.

BouncEngine — a browser-based Nokia Bounce homage with a liquid Frutiger-Aero style. Offline-capable PWA game client: menu, canvas engine, and level editor.

JumpPokemon is a (not yet finished) 2D Platformer where the player controls a pokemon.

Full title: "Box Clever Custom Levels Helper"

A level editor for the "Speedy Blupi"/"Speedy Eggbert" series of computer games

Browser Game Engine 2026: Build Maps, Music & Retro Worlds in One HTML File

Melvin the Marvellous Monster from Mars!

Movem Level Editor

Draw a Tetris board by hand in your browser. Place and rotate tetrominoes on a grid, count the pieces used, undo. Single HTML file, no install, works offline.