Anyone can contribute edits to OpenStreetMap, simply: 

  1. Go to https://www.openstreetmap.org
  2. Sign up and login
  3. Zoom in and/or search for an area
  4. Click “Edit”
    1. Follow the walk-through if it's your first time editing OSM
  5. Search for a specific location (node) or street (way) you want to edit
    1. Once your map is centred over the right area, hover around the area to find the right node or way to edit.
  6. Click on the location you want to edit, or click the “Help” button for more info
  7. Save what you edited, and you're all done.

Continue to the next article on Editing OpenStreetMap: Importing updates to OSM.