WyFy

Write a wifi network name and password to a NFC tag. Tap such a tag to automatically connect to that network. Totally free app. No ads, no notification bar spam. Uses the zxing library for encoding QR codes: Permissions: NFC to read and write tags. ACCESS_WIFI_STATE to populate SSID and security fields when app is launched.

It's safe to download this application. Kirk Rader is the official developer of the app that can be found in the Tools category. Users rated WyFy 4.3 on Google Play.

This application was downloaded and set up by over 1K users and the most recent stable update was on Jun 23, 2013. Get the latest installation package of WyFy 2.3 free of charge and take a look at users' reviews on Droid Informer. The app is built for Android 2.3.3 and above.