For UK based routes (this is where I think you are, judging by your profile)
you can use CycleStreets .
It’s also available as an app on most phone platforms (Apple, Android, Windows Phone).
Input your start and end points then when you get a route select the "Quietest Route" tab.
That should give you either cycle paths or quieter roads.
travel.stackexchange.com/users/40959/JenniP
I've always quite liked http://cycle.travel - UK oriented but the map interface is OpenStreetMap based so can handle overseas as well.
Website not an app, but may still be useful.
It defaults to low-traffic-roads (calculated from known traffic data, not simply road classification) and includes a very useful height mapper display, so you can tweak a proposed route to avoid steep hills.
It also offers randomly generated "short tours" - given a defined start point and distance, it will try to come up with possible cycle routes in the local area.
For example, " twenty miles round trip to something near Cambridge ", or " a hotel fifty miles from Leeds with a route there and back ".
Quite a clever idea, IMO, though I've not tested any of them out...
travel.stackexchange.com/users/29889/Andrew
I use Strava for ride route mapping, and it works okay.
Some local knowledge helps avoid possible pitfalls.
It doesn't specifically avoid main roads, but the "use popularity" switch will favour roads where cyclists go.
You can also "minimise elevation"
if you would rather go around than over something.
Example - here's our planned lunchtime route at work tomorrow.
https://www.strava.com/routes/4970649 Note: This question would be better asked on https://softwarerecs.stackexchange.com/ where it would be on topic.
Software is deemed off-topic for https://bicycles.stackexchange.com/
travel.stackexchange.com/users/43619/Criggie
Take a look at GPSies , people share routes there and you can find one fitting your criteria.
You may also like to combine it with OpenStreetMap.org and Wikimapia.org to select the most appropriate route.
travel.stackexchange.com/users/43638/Theodore Kornale
Google Maps has that capability.
It is probably not the greatest in the world, but free, and many people have it anyway.
After you have chosen you target and directions as usual, you can switch to different locomotion modes; car is on the very left (and the default), but there is also public transportation, pedestrian, bicycle, and plane.
in addition you should probably choose the option 'avoid
main roads' My experience is that it is pretty good (good enough for me, I use it)
travel.stackexchange.com/users/37993/Aganju
I've used Google Maps for cycling in the US.
So far it's been great
- it gives you cycling roads and avoids the more "dangerous" roads, gives you a small graph of the hills you need to go through, works on the phone/watch etc.
Hope that helps!
travel.stackexchange.com/users/43680/user6344199
TomTom (App, Hardware Devices) have the capability to choose "winding road".
This is mostly aimed ad motorcyclists, avoids busy roads and tries to choose "interesting" roads instead.
I would assume that these routes are also better suited than normal car navigation.
Also choosing "shortest route" on navigation systems gets one usually away from big roads.
It also seems to be a pretty reliable way to meet mapping errors ... which shouldn't be a problem on a bike most of the time.
Specific "cycling modes" so far semm only work in well mapped urban areas of the western world.
travel.stackexchange.com/users/53904/max
I want to go for a short cycle tour but I want to avoid main roads. Is there an app for that?
Is there an app that will calculate a route off main roads for cycling?
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travel.stackexchange.com/questions/68426
travel.stackexchange.com/users/4028/Andrew Welch
Google Maps has that capability, but you can also use http://cycle.travel, which is based on OpenStreetMap, Strava or TomTom. GPSies has routes shared by other users that you can try. Google Maps can be used for mapping a cycle route. However, there are so more specialised apps for this purpose, such as cycle.travel and Strava.
There are a number of apps tha can be used for cyclingroutes, for example Strava and cycle.travel. Google Maps can be used for mapping a cycle route.