How to Play Agar.io: Controls & Fullscreen
Keybinds, fullscreen steps, and device notes. Controls can vary by version and portal wrapper.
Keyboard & Mouse Controls
| Action | Key / Input |
|---|---|
| Move | Mouse cursor (moves toward cursor) |
| Action | Space to split; W to eject mass (varies by version) |
| Jump | Not confirmed |
| Pause | Not confirmed |
| Restart | Refresh page or return to menu |
Note: Controls can vary depending on platform wrapper and settings. Check in-game controls/settings if available.
Fullscreen Guide
Not confirmed from provided materials. Check for an in-game fullscreen icon or use browser fullscreen (F11).
Browser Fullscreen Shortcuts
- Windows: F11
- Mac: Ctrl + Cmd + F
- Chromebook: Press the fullscreen key □ on the top row
Mobile & Chromebook Support
Mobile Support
Yes
Chromebook Notes
Playable in Chromebook browsers. Performance depends on hardware and server latency.
FAQs (controls & fullscreen)
What are the controls for Agar.io?
Move with your mouse cursor. Space typically splits your cell and W typically ejects mass, but exact bindings can vary by version.
How do I go fullscreen in Agar.io?
Not confirmed from the provided materials. Check for a fullscreen icon or use browser fullscreen (F11).
Does Agar.io work on mobile?
Mobile support is available on some versions. Check the platform listing for your device.
Where to play
Having trouble?
If the game won’t load, is laggy, or shows a black screen, use the fixes page.
🔧 See Fixes for Loading & Lag →