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Draw My Tree docs

Troubleshooting

A few common snags and how to fix them. If something here doesn't cover your problem, reach out and we'll help.

The tree feels slow or laggy

The interactive tree is drawn on your computer's graphics hardware. Most of the time that's automatic and fast, but there's one setup that trips people up: laptops with two graphics chips, a power-saving integrated GPU and a faster dedicated one (common on machines with NVIDIA or AMD graphics).

Some browsers don't pick the fast chip on their own. Firefox in particular stays on the integrated GPU even when a page asks for the faster one, so the same tree can feel smooth in Chrome and sluggish in Firefox on the very same laptop. Panning and zooming a large tree is where you'd notice it.

To point your browser at the dedicated GPU on Windows:

  1. Open Settings → System → Display → Graphics.
  2. Choose Browse, and add your browser's program (for example firefox.exe, usually in C:\Program Files\Mozilla Firefox).
  3. Select it, choose Options, pick High performance, and save.
  4. Fully close and reopen the browser.

Chrome and Edge usually select the fast GPU automatically, so this mainly helps Firefox. On macOS the system handles GPU switching for you, so there's nothing to change.

Two more things worth checking if the tree is still slow:

  • Hardware acceleration should be on in your browser's settings. With it off, the tree falls back to the CPU and will feel heavy.
  • Graphics drivers that are badly out of date can force that same slow fallback; updating them often helps.

Very large trees are simply more work to draw. Zooming out automatically switches to simplified cards to keep things responsive, so if a full-detail view is heavy, zoom out a little.

The tree is blank or shows a "WebGL not supported" notice

The interactive tree needs WebGL, a standard graphics feature every current browser supports. If you see this notice, it usually means hardware acceleration is turned off, your graphics drivers need an update, or the browser is quite old. Turning acceleration back on, updating drivers, or updating the browser resolves it. Exports and your data still work regardless.