nav2 Map Editor

Drop a .pgm + .yaml map here, or use “Load map”.
Everything runs locally in your browser.

Map

Drop .pgm (+ optional .yaml / .json) or click to browse
PGM (P5/P2) & PNG supported

Tool

Brush / thickness 4 px

free wall unknown

Cleanup

Deletes stray occupied pixels (SLAM salt‑noise) that have ≤1 wall neighbour. Undoable.

Area labels

Pick 🏷 Label, click the map, type a name. Labels are overlay‑only — they never change the map pixels, and export to a sidecar .json. Click a label to delete it.

Metadata

Resolution (m/px)

Origin X Origin Y Yaw

Preserved from the loaded .yaml; edit if you loaded a bare image.

Save

Map name

Shortcuts

B brush · L line · R rect · C circle · G fill · M measure · T label · Space/P pan
E/W/U paint free/wall/unknown · [] brush size · Shift snap line/square
Ctrl+Z undo · Ctrl+Y redo · F fit · Esc cancel