about / features
  • a painting application living in your browser
  • work alone or
  • work together, simultaneously
  • stop and continue anytime without saving
  • stop and continue on different computers
  • show/use your pictures instantly
tablet support
you can use any tablet with copainter.

windows users may want to turn off distracting operating system features for tablets like flicks or pen feedback. a guide can be found here.

pressure sensitivity (for opacity control) is available for wacom tablets and requires a browser plugin which is installed automatically with the latest wacom driver software. please note that chrome does not support plugins anymore.
opacity control /
opacity jitter
opacity jitter takes a huge toll on performance and therefore requires fast hardware. re-/loading a picture that uses opacity jitter takes much longer.

tip: speed between browsers varies significantly so try out different browsers if this feature is important to you.
love & hate
love something / hate something about copainter?
write email at love.and.hate(at)copainter.org
guide / how-to
  • set up a picture by clicking start
  • each picture has a number and a key
    (found on the picture info panel)
  • remember the key to continue a picture later
  • share the key to let others join your picture
  • every action is saved automatically

  • publish a picture to
    • include it in the gallery
    • show it on its own page at:
    • embed it on the web by using:

  • republish to replace an old version with your current version, all links stay the same, everyone will see the last published version
save locally
every stroke/action is saved on the server and thus is your picture, but you are free to save the canvas as an image file at any time by right-clicking on the canvas and choosing 'Save image...' from the context menu.
full screen
if you need more breathing room try the full screen mode of your browser. hit F11 to enter/exit full screen mode.