Light FTP server enable Android device act as standard FTP server. Light FTP server enable you to control your device files remotely over WIFI/LAN. You can use standard FTP clients/browser to connect to your Light FTP server.

Features:
1] No Ads.
2] Full Fledge and Complete FTP Server.
3] UTF8 MDTM and MFMT supported.
4] ANONYMOUS Login (with write protection).
5] Wake Lock Awake.
6] Light FTP Widget (Use widget to on/off server).
7] Very Simple UI.
8] Enable Use of Light FTP server From L8 File Manager.

Used as FTP Plugin in App FileManager/Explorer https://play.google.com/store/apps/details?id=com.mady.filemanager

I use it for long time for my personal use making it available for whole world.