Castory

Free plan Web

What Castory is

Castory is web software for authors and publishers who want to turn manuscripts into chapter-based audiobooks. It supports fiction, nonfiction, and serialized works, with separate narration roles for dialogue and characters. Castory offers more than 50 voices for multilingual creation, and its AI analyzes a manuscript’s genre and emotional tone to recommend narrators for chapters and characters. It accepts PDFs and more than 10 other document formats; the homepage says a single workflow can process novels up to 100,000 characters. Before generating audio, users can preview and adjust narration settings, then export audio files for distribution. Its EPUB workflow enables online listening and MP3 downloads of chapter audio. The Free plan is listed as free, and the page displays 0 / 5,000. Users retain ownership of uploaded content, and Castory says it does not claim ownership of generated audio. It says uploaded content will not train general-purpose AI models without explicit consent. Files and results are kept only as long as necessary and can be deleted through the product. The terms say service availability may be limited or interrupted.

Who it suits

Castory suits authors and publishers creating fiction, nonfiction, or serialized audiobooks. It may fit users who want chapter-level narration roles and downloadable audio from an EPUB workflow.

What it does well

Free plan listed as free
More than 50 voices for multilingual creation
Supports PDFs and more than 10 formats
Audio export and chapter MP3 downloads
Users retain ownership of uploaded content

What to know first

Single workflow limit is 100,000 characters
Service may be in beta or limited release
Uninterrupted availability is not guaranteed

Limits

The Free plan is displayed as 0 / 5,000. The homepage says one workflow can process novels up to 100,000 characters.

Plans

Plan	Billed and limits	Price
Free	Page displays 0 / 5,000; free use is advertised	Free

As castory.studio lists them, read 3 Oct 2026. The maker's own page has the final word.

Getting started

Visit https://castory.studio/.
Use the web service and select the Free plan, listed as free.
Provide a manuscript in PDF or another supported document format.
Preview and adjust narration settings before generating audio.
Export audio files or use the EPUB workflow for online listening and chapter MP3 downloads.

Verdict

Castory combines manuscript conversion, adjustable narration, and chapter-based audio export in a web service. Check the stated processing limit and service availability terms if you plan to use it for a large project.

Questions

Does Castory offer a free plan?

Yes. The Free plan is listed as free, and the page displays 0 / 5,000.

What platforms does Castory support?

Castory is available on the web.

What document formats can I upload?

Castory supports PDF and more than 10 document formats.

Can I export audiobook audio?

Yes. Users can export audio files for distribution, and the EPUB workflow supports chapter-based MP3 downloads.

Who owns the uploaded content and generated audio?

Users retain ownership of uploaded content, and Castory says it does not claim ownership of generated audio.

Does Castory use uploaded content to train general-purpose AI models?

Castory says it will not use uploaded content to train or improve general-purpose AI models without explicit consent.

Facts from Castory's own pages

Content ownership: Users retain ownership of uploaded content, and Castory says it does not claim ownership of generated audio. · castory.studio, 3 Oct 2026
Data retention: Uploaded files and generated results are stored only as long as necessary, and users may delete content through the product interface. · castory.studio, 3 Oct 2026
Document formats: Castory supports PDF and more than 10 document formats. · castory.studio, 3 Oct 2026
EPUB output: The EPUB workflow supports listening online and downloading chapter-based audiobook audio as MP3 files. · castory.studio, 3 Oct 2026
Intended users: Castory describes itself as built for authors and publishers, and supports fiction, nonfiction, and serialized works. · castory.studio, 3 Oct 2026
Model training: Castory says it will not use uploaded content to train or improve general-purpose AI models without explicit consent. · castory.studio, 3 Oct 2026
Narration: It supports multiple narration roles, including distinct voices for dialogue and characters. · castory.studio, 3 Oct 2026
Narrator matching: Its AI analyzes a manuscript’s genre and emotional tone to suggest narrators for chapters and characters. · castory.studio, 3 Oct 2026
Processing limit: The homepage says it can process novels up to 100,000 characters in one workflow. · castory.studio, 3 Oct 2026
Purpose: Castory turns manuscripts into structured, chapter-based audiobooks for authors and publishers. · castory.studio, 3 Oct 2026
Review and export: Users can preview and adjust narration settings before generation, then export audio files for distribution. · castory.studio, 3 Oct 2026
Security: Castory says it implements reasonable technical and organizational safeguards; it does not name a security certification or compliance standard on this page. · castory.studio, 3 Oct 2026
Service status: The terms say the service may be offered in beta or limited-release form and that availability is not guaranteed to be uninterrupted. · castory.studio, 3 Oct 2026
Voice library: Castory says it offers more than 50 voices for multilingual audiobook creation. · castory.studio, 3 Oct 2026

Where Castory stands on Freedom251

AI Audiobook Generators#9 of 25