100% Free · Bring your own model · Private

Write better fiction,
totally free.

Rewrite, expand, and generate with free AI models through OpenRouter — bring your own model and key, no markup, no subscription. Your stories sync straight to your own Google Drive.

Start writing free

No credit card · No subscription · Your data stays in your Drive

What is KudoWrite?

KudoWrite is a free, browser-based writing app for long-form fiction. You draft a scene as a rough prompt, then shape it with AI — expanding, rewriting, splitting, and committing beats — until a chapter comes together. It's built for novelists and storytellers who want AI as a drafting partner without giving up control of their voice or their work.

Your stories are saved to your own Google Drive. When you choose to sign in, KudoWrite creates a single file in your Drive — using Google's narrow drive.file permission, which limits access to only the files the app itself creates — so your work syncs across devices and stays entirely yours. We run no server of our own and never see your writing.

🆓
Totally free
Runs on free AI models through OpenRouter. No subscription, no credit card, no usage caps from us — ever.
🔌
Bring your own model
Plug in any OpenRouter model with your own key — free or paid, your pick. You control the model, the cost, and the rules.
☁️
Google Drive sync
Everything saves to your own Google Drive. No lock-in, no proprietary format, no servers of ours holding your work.
✏️
Rewrite
Give a direction and let the AI rewrite any section — preserving your voice while sharpening the prose.
🔍
Expand
Deepen any passage with sensory detail and interiority — no padding, just substance.
✨
Generate
Generate the next scene from context. The AI reads your chapter bible, not just the last paragraph.

How it works

Draft rough, shape it with AI, lock in what you love — then loop.

  1. 1
    ✍️ Start with a rough beat
    Type a scene, a line of dialogue, or just a one-line prompt into a beat card. No need to make it good — that's what comes next.
  2. 2
    🔍 Expand & ✏️ Rewrite with AI
    Expand fleshes a beat out with sensory detail and interiority; Rewrite sharpens it in place. Steer them with an instruction, or just run them — as many times as you like.
  3. 3
    ✂️ Split when a beat runs long
    When a beat grows past a single moment, split it into two with one click and keep shaping each half on its own.
  4. 4
    🔒 Commit what you love
    Lock a beat into your manuscript when it's right. KudoWrite stitches it onto the prose before it, keeping the whole chapter coherent.
  5. 5
    ✨ Generate the next beat — and repeat
    Let the AI write the next beat from everything so far — it reads your story bible, not just the last line — then keep the loop going to the end of your story.