MEItoVexFlow is a JavaScript library which converts MEI-encoded music notation into drawing instructions for the open-source VexFlow online music notation rendering API.

This library was first created by Richard Lewis, then expanded as part of The Lost Voices Project. Most recently MEItoVexFlow has been improved on by Zoltán Kőmíves thanks to sponsorship from Google Summer of Code awarded to the Maryland Institute for Technology in the Humanities (MITH).

For a demonstration of the display capabilities of MEItoVexFlow, checkout the feature demo page. The source code can be found at GitHubmeiView is an application that uses MEI to VexFlow in the context of textual variants in 15th and 16th century sources. It has been further enhanced thanks to funds from Haverford College and a Scholar Editions Grant from the NEH.