Voice consistency engine
Your style sheet — POV, tense, voice notes — rides with every generation. Banned words are mechanically linted. Approved passages become golden beats: "write like this" anchors the AI must follow.
An AI co-writing studio for novelists
You direct. The AI drafts.
Nothing becomes canon without your approval.
Tindra turns a premise into a finished, voice-consistent novel — one approved beat at a time. It is local-first, screen-reader-first, and built for writers who refuse to let the machine take the wheel.
For Windows, macOS, and Linux — your novels stay on your machine.
A pipeline with you at every gate
Every stage is a proposal. You review, revise, or reject before anything moves forward.
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Premise to outline
Give Tindra your premise, genre, and style sheet. It proposes a chapter outline — you reshape it until it's yours.
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Chapters to beats
Each chapter breaks into 6–10 beats. You approve the plan before a single sentence of prose is written.
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Beats to prose
Beats are drafted one at a time, linted against your banned-words list before you even read them, and revised until you mark them canon.
Built for craft, not word count
Story bible with knowledge boundaries
Facts are stamped to the chapter where they're established, so the AI only ever knows what the story knows. A fact review queue keeps canon under your control.
The craft audit suite
Echo detector, rhythm stats, tension curves, scene-purpose audits, a simulated beta-reader panel, character arc tracking (wound, want, need, lie), and a motivation audit that flags plot-convenient behavior.
Humanize pass
A dedicated rewrite stage for rhythm variance, shown-not-told emotion, and dialogue that sounds like people — best run on a different model than the one that drafted.
Promises kept
The promise ledger tracks every setup to its payoff. The thread tracker watches your subplots. The genre beat map audits structure against reader expectations.
Cover Studio
Chat with an art director, generate cover concepts, test thumbnail legibility at Amazon search size, and export a KDP-ready 1600×2560 JPEG. Every image comes with a structured, accessible description.
KDP-ready export
One click produces a publish-ready .docx — title page, copyright page, chapter headings, page breaks, first-line indents. Plus full JSON backup and Markdown export.
Local-first and private
No server, no account, no cloud copy of your manuscript. Everything lives on your machine, and your JSON backups go wherever you choose.
Bring your own models
Connect your own Anthropic, OpenAI, xAI, Google Gemini, or Venice.ai API keys and assign the right model to each job — prose, planning, review, humanizing, covers.
See it in action
Screens from a novel-in-progress in Tindra's dark theme. Every caption below describes what's shown, because pictures should never be the only way in.
Screen-reader-first, not screen-reader-compatible
Tindra was built with accessibility as a hard requirement, not a retrofit. Every screen is full semantic HTML, tested with JAWS. Generation results, audit findings, and failures are announced — never trapped in a visual-only widget. Even generated cover art comes with structured descriptions of composition, color, typography, and mood, so blind authors can direct their covers with confidence.
If you write with a screen reader, Tindra was built for you. If you don't, you still get an interface where everything is reachable by keyboard.
Pricing
One plan, every feature. Try everything free for 7 days — cancel before the trial ends and pay nothing.
Monthly
$12 / month
- 7-day free trial
- All features, all updates
- Desktop app for Windows, macOS, and Linux
- License key works offline for 14 days at a time
- Cancel anytime
Save 31%
Yearly
$99 / year
- 7-day free trial
- All features, all updates
- Desktop app for Windows, macOS, and Linux
- License key works offline for 14 days at a time
- Two months free versus monthly
Payments are handled by Lemon Squeezy, our merchant of record. Your license key arrives by email the moment checkout completes. AI usage is billed by your own model providers — see the FAQ.
Questions, answered
Does the subscription include AI usage?
No — and that's deliberate. Tindra connects to your own API keys (Anthropic, OpenAI, xAI, Google Gemini, Venice.ai), so you pay providers directly at cost, choose exactly which models write your prose, and never have your manuscript routed through our servers. We don't have servers.
How does the free trial work?
Checkout starts a 7-day trial — you won't be charged until the trial ends, and you can cancel before then from your Lemon Squeezy customer portal and pay nothing. Your license key arrives by email immediately so you can start writing right away.
What happens to my novels if I cancel?
They're yours, on your machine, in open formats. Export to .docx, Markdown, or full JSON backup at any time. Tindra never holds your manuscript hostage because Tindra never holds your manuscript at all.
Does it work offline?
Your license validates online and then works offline for up to 14 days at a time within your paid period. When a trial or billing period ends, Tindra needs a moment online to confirm the renewal. Drafting needs an internet connection to reach your AI providers, but reading, editing, and exporting your work do not.
Can I move between computers?
Yes. Your license covers a limited number of devices, and Settings has a "Release this device" button to free a seat when you switch machines. An encrypted settings export moves your API keys and preferences without retyping.
Is the AI going to write my book for me?
Only as much as you let it. Tindra's whole design is the opposite of "generate novel" buttons: you approve the outline, you approve every chapter's beats, and every beat of prose is a draft until you mark it canon. The lessons miner even turns your repeated revisions into permanent voice rules, so the AI drifts toward you — not the other way around.
Which platforms are supported?
Tindra is a desktop app for Windows, macOS (Apple Silicon and Intel), and Linux — every installer is on the download page. Updates install themselves on Windows and Linux; macOS updates are manual for now.
What's your refund policy?
If something's wrong, email us within 14 days of a charge and we'll make it right. Details on the refund policy page.
Your novel. Your voice. Your call.
Seven days free. Cancel in two clicks. Keep everything you write.
Start your free trial