RenoidPlayer is described as 'Renoid is based on the idea of Sato-san, the Renoise-Gate webmaster. Renoid is a virtual singer system using Renoise XRNI or SoundFont SF2 sound library and cascaded pitch-corrector. Through this, virtual singing can be used without any special program' and is an website. There are more than 10 alternatives to RenoidPlayer, not only websites but also apps for Windows, Mac, Linux and Arch Linux. The best RenoidPlayer alternative is OpenUTAU, which is both free and Open Source. Other great sites and apps similar to RenoidPlayer are VOCALOID, Synthesizer V, UTAU and Kits.AI.
eCantorix is a singing synthesis frontend for espeak. It works by using espeak to generate raw speech samples, then adjusting their pitch and length and finally creating a LMMS project file referencing the samples in sync to the input file.
