The website of musician Jan Wolters, as well as the website of Secret Place Ministries, both host gospel sheet music online for free. The websites offer sheet music for a number of traditional gospel songs, but not all music sheets include lyrics on the Wolters site.
Jan Wolters provides sheet music and audio samples for a variety of instruments, including piano, flute, saxophone and voice. Secret Place Ministries has a smaller collection of traditional gospel arrangements, but includes guitar chords, tabs, and in some cases, YouTube videos in addition to sheet music and lyrics. Both websites publish sheet music in a printable format and give permission for use of the manuscripts at home or by church musicians.