BlockForge

Create your first project

1. Tap Create a project, then give it a name.
2. Drag blocks from the left palette into the workspace.
3. Snap when flag clicked on top, then motion blocks below it.
4. Press ▶ Start and watch the stage.

Blocks

• Drag a block from the palette. Drop it near another block to snap; a highlight shows the connection point.
• Drag a block away to detach it (everything below comes along). A simple tap never breaks your stack.
• C-blocks (repeat, if…) hold a stack inside — drop blocks into the opening.
• Click a block to select it, then: Delete removes it, Ctrl/⌘ + D duplicates it, the arrow keys move it (hold Shift for 10), Esc deselects.
• Long-press / right-click a block for duplicate and delete.
• Press ▶: the block currently running glows white — you can watch your program execute.
• Use the search box to filter the palette.

Sprites, costumes & sounds

• Add sprites with the + Sprite button below the stage.
• Open the Costumes tab to import images (PNG/JPG/SVG) or pick a built-in.
• Open the Sounds tab to import MP3/WAV/OGG and play them from blocks.

Variables & lists

• Create them in the Variables category; tick the checkbox to show a monitor on stage.
• Lists support add / delete / replace / read / contains / length.

Saving

• Projects auto-save to this device every 30 seconds and on stop.
• Export downloads a .json file; Import restores it on any device.

Make a game in 5 minutes

1. Sprite 1: when flag clicked → forever → if key →arrow right→ change x by 10.
2. Add a coin sprite: when flag clicked → forever → if touching Sprite1 → change score by 1 → hide.
3. Create the variable score and show its monitor.

Autosave every 30 seconds UI sounds

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Delete ALL saved projects

🔒 Projects are stored on this device only (IndexedDB), never uploaded anywhere. They survive a refresh, a browser restart, and even working offline — but clearing the browser data removes them. Export important work.