Browse and apply curated themes for Codex Desktop on macOS and Windows
Book formatting software for self-publishers
Stage
Not given
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Founded
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Based in
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DE
Pricing model
Freemium
Paid
Pricing
Free: 6 published Free themes, free Plugin, offline Restore. Pro: US$9/year (Launch Sale, regularly US$19.90/year before applicable taxes), includes all 17 Pro themes, new releases, compatible updates, theme switching, and offline Restore. Renews annually until canceled. Manual refund requests withi
One-time purchase price to be announced before launch. Without a license, the software works with basic features indefinitely but exports carry a watermark.
Key features
Browse curated theme gallery
Apply themes from inside Codex
Switch or restore themes with confidence
Free open-source Plugin
Data-only theme packages
Automatic rollback on apply failure
Offline restore of official interface
Device authorization and approval flow
Compatible with macOS and Windows
Compatibility verification before applying themes
Supports Windows, macOS and Linux
Accepts Word and Markdown manuscripts
Generates print-ready PDF for KDP and IngramSpark
Creates EPUB 3 for ebook stores
Automatic layout of running heads and chapter openers
Professional typography with correct quotation marks and dashes
German language typography support
Works offline without requiring an account
Custom theme saving in licensed version
What makes it different
Reversible and safe theme changes with offline restoration available without login or active subscription
Data-only theme packages that cannot execute code or access conversations and projects
No remote DRM or removal of appearance already on user's computer
Free themes always available plus affordable Pro subscription with new releases included
Compatibility checks and automatic rollback protect workspace integrity
Runs natively on Windows, macOS and Linux while the best-known alternative only runs on Mac
Professional typography handling for both English and German
Offline desktop app with no account or cloud dependency required
One-time purchase model instead of subscription
Includes free tools for KDP formatting and quote/dash fixing
Codex Skin
Kernsetzer