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Free W. D. Gaster AI Voice Generator

Type any line and hear it in an eerie W. D. Gaster voice inspired by Undertale's lost royal scientist, for lore videos, theories and cryptic messages.

Hear W. D. Gaster

Hollow, distant and calm, with an otherworldly echo

  • “Another test. Another result that makes no sense. How wonderfully curious.”

    0:06
  • “Between every timeline there is a gap. I have been waiting in it for quite some time.”

    0:06
  • “Entry number eighteen. The core is stable. My assistants suspect nothing.”

    0:06

Lines to try in W. D. Gaster's voice

About W. D. Gaster's voice

W. D. Gaster
Photo: Xander Ashburn, CC BY 2.0, via Wikimedia Commons

W. D. Gaster is the mysterious former Royal Scientist of Undertale, a figure said to have shattered across time and space, known through hidden rooms, cut content and dialogue written in the Wingdings font. He has no official voice in the game, so fans imagine one: a distant, hollow and calm tone, slow and precise, with an echo that sounds like it comes from somewhere between worlds.

Tips for the best W. D. Gaster audio

  • Write slow, cryptic sentences with periods between them; Gaster sounds best when he is calm, measured and slightly unknowable.
  • Use scientific words like experiment, entry and research, and avoid exclamation marks or slang. Spell numbers out for a smoother, eerie read.

How to make W. D. Gaster say anything

  1. Type the line

    Write what W. D. Gaster should say, up to 500 characters (200 on the free line), or press one of the scripts below.

  2. Or use your own voice

    Switch to Change my voice, then record or upload up to 60 seconds (15 on the free line): your words, timing and shouts come back in W. D. Gaster's voice.

  3. Generate and download

    It plays in a few seconds. Download the MP3 for your video, meme or stream.

W. D. Gaster AI voice FAQ

Does W. D. Gaster have a voice in Undertale?

No. Gaster has no spoken voice in the game; his rare lines appear in the Wingdings font. This generator gives him an imagined, eerie voice for fan theories and lore videos.

Who is W. D. Gaster?

He is described in Undertale as the former Royal Scientist who fell into his own creation and was scattered across time and space. Most of what fans know comes from hidden rooms and cut content.

Can I translate Wingdings into Gaster's voice?

Type the English meaning of the message rather than Wingdings symbols, and the generator reads it in his eerie voice. Wingdings characters cannot be pronounced directly.

Is the W. D. Gaster AI voice free?

You can try it free once a day without an account: up to 200 characters, or 15 seconds of your own recording. After that, each line uses credits, and the cost shows before you generate.

Can I download the W. D. Gaster audio?

Yes. Every line you make plays on the page and downloads as an MP3, ready for a video, a meme, a stream alert or a message.