Db_transfer is a project mainly written in Ruby, it's free.
transfer a db from mysql or sqlite to postgres via taps
This is a simple template to allow you to db:push from a sqlite or mysql db to a heorku postgresql db. It's only needed if your app isn't a ruby app.
Use: modify config/database.yml to contain the proper database credentials
$ bundle install
$ bundle exec heroku db:push --app app-name
If you need a shared database on heroku:
$ heroku addons:add shared-database --app app-name
warning: running taps in this fassion will overwrite the database at DATABASE_URL on heroku.