Piapro, short for "Peer Production", can refer to several entities owned by Crypton Future Media, Inc:
- Piapro Family, the group of characters owned by Crypton Future Media: MEIKO, KAITO, Hatsune Miku, Kagamine Rin / Len, and Megurine Luka. Also referred to as "Cryptonloids" by fans.
- piapro.jp, a website for hosting art, music, and writing related to Vocaloid, especially the Piapro Family.
- Piapro Studio, a plugin for digital audio workstations used for working with Vocaloids. Previously it used the VOCALOID engine as its core but it has since been updated to its own standalone engine.
This tag mainly refers to voicebanks using the Piapro engine or posts of official illustrations that have the Piapro label.