If you're looking for a tool to create custom Deltarune or Undertale dialogue, the community's go-to is the . It allows you to:
For inspiration or to see how the game's actual writing is formatted, you can browse this , which contains every line of dialogue from Chapters 1 and 2.
: Upload your own character portraits to use in the box.
: Export your dialogue as a GIF to mimic the in-game "typing" effect.
If you want to manually create text that looks "good" or authentic, use these specific fonts:
: Choose from the main cast like Kris, Susie, Ralsei, or Spamton.
: 8-Bit Operator JVE is the official typeface used for most narration and speech.