Open Source VOCALOID Alternatives

    The best open source alternative to VOCALOID is Sinsy, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 10 alternatives to VOCALOID and three of them is open source so hopefully you can find a suitable replacement. Other interesting open source alternatives to VOCALOID are eCantorix (Free, Open Source) and Cadencii (Free, Open Source).

    This page was last updated Jan 13, 2021


    • Windows
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    • Voice synthesis
    • Text to Speech
    • Piano Roll
    • MIDI Keyboard Input
    • Music import
    • Music XML Support
    • Cloud based
    • Custom voice
    • Synthesizer


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    • Singing voice synthesis system based on HMM algorithm. View 7 alternatives to Sinsy
      Most users think Sinsy is a great alternative to VOCALOID.
      • FreeOpen Source
      • Linux
    • 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. View 10 alternatives to eCantorix
      No screenshots yet
      • FreeOpen Source
      • Linux

    • Cadencii is a program that allows cross-importation of vocal MIDI, VSQ, UST, and VSQX files. It supports both UTAU and Vocaloid voice banks. View 4 alternatives to Cadencii
      Some users think Cadencii is a great alternative to VOCALOID, some don't.


      The program is no longer updated. Last version, 3.4.1, released in August 2011, can be still downloaded from the official website.

      • FreeOpen Source
      • Mac
      • Windows
      Cadencii vs VOCALOID
      pros, cons and recent comments
      guys it never said it can synthesize
      Positive comment about 1 year ago

      Cadencii can synthesize. Its just hard to get it to.
      Positive comment 7 months ago

      Not written in the description that it can synthetise vocal, just it's compatible with Vocaloid voice banks.
      Negative comment over 3 years ago

      Doesn't actually synthesize, it's just an importer.
      Negative comment over 2 years ago

    Showing 3 of 3 alternatives