is there an "easy" web based (usable with full sized computer) editor for #OSM ?

I'm looking for one I can use to correct/add things like info about local businesses (such as opening hours, whether a business exists at that location)

I do have an OSM account and have looked on the main site but I click on an element and get all sorts of stuff and am worried about putting in the wrong tag or knackering something on the map that someone else has made..

#OpenStreetMap