OpenSlug

Free plan AndroidiPhoneWeb

What OpenSlug is

OpenSlug is a free screenwriting tool for Android, iOS, and the web, using industry-standard screenplay formatting. It works offline and its homepage says no account is required. Writers can maintain unlimited drafts, branch versions, and save snapshots. Files can be imported from FDX, DOCX, and plain text, then exported with one click to PDF, FDX, and other formats; export options are described as basic. Scripts and settings remain on the device in browser IndexedDB and local storage. There is no cloud synchronization or remote backup. The privacy policy says the service collects no personal information, usage data, analytics, crash reports, or server content, and uses no tracking services. Local work may be permanently lost after clearing app or browser data, losing or resetting a device, or uninstalling a mobile PWA. Users retain writing ownership, while the terms license personal, non-commercial screenwriting use.

Who it suits

OpenSlug suits screenwriters wanting offline drafting, branching, snapshots, and standard screenplay formatting across Android, iOS, or web. It is appropriate for writers willing to manage their own backups.

What it does well

Industry-standard screenplay formatting
Unlimited drafts and version snapshots
Offline operation
Imports FDX, DOCX, and plain text
No account required

What to know first

No cloud sync or remote backup
Local data can be permanently lost
Export formats are basic
Personal, non-commercial license

Plans

Plan	Billed and limits	Price
Free	Free to use · no account · unlimited drafts · scripts stored locally	Free

As openslug.com lists them, read 11 Oct 2026. The maker's own page has the final word.

Verdict

OpenSlug offers offline screenplay creation with broad import and export options and unlimited draft management. Its device-only storage protects against server collection but leaves backup responsibility with the writer.

Facts from OpenSlug's own pages

Real-time collaboration: No · openslug.com, 22 Sept 2026
Data loss: Locally stored work may be permanently lost if browser or app data is cleared, a device is lost or reset, or a mobile PWA is uninstalled; users are responsible for backups. · openslug.com, 11 Oct 2026
Drafts: It supports unlimited drafts, branching, and snapshots of versions. · openslug.com, 11 Oct 2026
Export formats: basic · openslug.com, 22 Sept 2026
Exports: It offers one-click exports to PDF, FDX, and other formats. · openslug.com, 11 Oct 2026
Free plan: Yes · openslug.com, 22 Sept 2026
Imports: It imports FDX, DOCX, and plain text files. · openslug.com, 11 Oct 2026
Integrations: The homepage lists FDX and DOCX import and PDF and FDX export; it does not name third-party integrations. · openslug.com, 11 Oct 2026
Maker: The terms identify Brian Taylor as the person whose written permission is required for use of the app's intellectual property; the pages reviewed do not state a headquarters or founding year. · openslug.com, 11 Oct 2026
Offline mode: Yes · openslug.com, 22 Sept 2026
Offline use: OpenSlug works offline, and its homepage says no account is required. · openslug.com, 11 Oct 2026
Ownership: The terms say users retain ownership of their writing and the app is licensed for personal, non-commercial screenwriting use. · openslug.com, 11 Oct 2026
Privacy: The privacy policy says OpenSlug collects no personal information, usage data, analytics, crash reports, or content on a server, and uses no tracking or analytics services. · openslug.com, 11 Oct 2026
Publishing tools: Yes · openslug.com, 22 Sept 2026
Purpose: OpenSlug is a screenwriting tool with industry-standard screenplay formatting. · openslug.com, 11 Oct 2026
Security warranty: The terms provide the app as is and do not warrant that it is free of security vulnerabilities. · openslug.com, 11 Oct 2026
Storage: Scripts and settings are stored on the device in browser IndexedDB and local storage; there is no cloud sync or remote backup. · openslug.com, 11 Oct 2026
Version history: Yes · openslug.com, 22 Sept 2026

Where OpenSlug stands on Freedom251

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