JOSM is an extensible editor for ​OpenStreetMap

JOSM is an extensible editor for ​OpenStreetMap (OSM) written in ​Java 7.

Currently it supports loading stand-alone GPX tracks and GPX track data from the OSM database as well as loading and editing existing nodes, ways, metadata tags and relations from the OSM database.

----------------------------------

https://josm.openstreetmap.de/wiki/Download

Install JOSM – Java OpenStreetMap Editor
on Mint 17, Ubuntu 14.04 LTS

$ sudo apt-get install nano
$ sudo nano /etc/apt/sources.list
add these two lines below in the bottom on sources.list, hit ctrl+x and "y".

# JOSM
deb http://josm.openstreetmap.de/apt trusty universe

$ wget -q https://josm.openstreetmap.de/josm-apt.key -O- | sudo apt-key add -
$ sudo apt-get update
$ sudo apt-get install josm-latest

----------------------------------

Openstreetmap Apps for Android
http://osmand.net/

on F-droid Market
https://f-droid.org/repository/browse/?fdid=net.osmand.plus

or

Google Play market
https://play.google.com/store/apps/details?id=net.osmand

----------------------------------