Built to write. Designed to worldbuild.
LocalProse is a complete writing software for authors, based on AI features that run exclusively on YOUR machine. Your manuscripts never leave your hard drive. Write on the go on your mobile device, then sync at home via local Wi-Fi.
Complete writing ecosystem available for Windows 10/11, macOS, Linux, Android and iOS.
For whom?
Why choose local novel writing software?
Writing a novel is a long, intimate, and personal act. The choice of your writing software determines the environment in which you will spend hundreds of hours working. The majority of recent writing tools rely on the Cloud: your chapters, your ideas, and your characters transit through remote servers. Your unpublished manuscripts become external data that can be manipulated, exchanged, or even resold without your knowledge.
LocalProse was designed to answer a simple question: Can we benefit from artificial intelligence features to improve our writing and structure our narrative without sacrificing the confidentiality of our texts or suffering the frustrating logic of subscriptions or credit quotas? The answer is yes, provided the AI runs directly on your machine.
Our philosophy
Putting the human back at the heart of the writing process
The end of the mental burden
AI subscriptions and credit systems push us to save our thoughts, to calculate each iteration in our writing. LocalProse removes this barrier: it's YOUR machine doing the work. The use of AI features is unlimited.
Data sovereignty
Your drafts are fragile and personal. They don't need to feed external databases. The Internet connection is only used to activate your trial and license. Everything else - writing, storing, and syncing your projects - happens offline.
Unlike cloud alternatives like Sudowrite, or legacy licensed platforms like Scrivener, LocalProse combines the power of an AI writing assistant with local security: your drafts never leave your hard drive, the use of AI in service of the author is unlimited, and mobile sync happens over local Wi-Fi, completely bypassing the Cloud.
Whether you're looking to write and structure your first novel, overcome writer's block, use an AI assistant without losing your author's voice, LocalProse guides you from the first line to the final dot of your manuscript.
The writer's arsenal
Software key features
Writing assistant
Editing, rewriting, suggestions for text continuation, thesaurus, narrative audit. Unlock your writing instantly.
The right to waste
Test 5, 50... 500 variations of a paragraph or dialogue if needed, thanks to local AI. No credit limit restricts your creativity.
Create your Universe
Build your profiles (Characters, Locations), organize them into Groups, label them with Tags, and visualize their relationships on a graph.
Timeline & Consistency
Visualize the evolution of your universe over time. The AI adapts to the era of your narrative to track anachronisms and inconsistencies.
Organize your ideas
Never lose a spark of brilliance. A centralized Idea Box with enriched, customizable post-its linked contextually to your chapters.
Talk to your characters
The Interview mode brings your protagonists to life to test their reactions in real time and refine/expand their psychological profile.
Tailored voice dictation
Smart transcription at the cursor with automatic punctuation handling, 100% offline (multiple precision models available).
Visual comfort
Focus mode with Pomodoro and native themes (light or dark depending on your preference) to protect your eyes during your long writing sessions.
Real-time metrics
Stay focused on your goals. A word/character counter displays your chapter's progress against the total length of your manuscript.
Direct PC/Mobile sync
Write on your smartphone while on the train. Once home, open the mobile app and send your texts directly to your computer via Wi-Fi.
An adaptive AI engine
Upon first launching the software, the AI engine adapts to your machine's hardware configuration. For smooth writing in all circumstances.
Sanctuary & Security
Your manuscripts stay on your hard drive. From the first word, an automatic local background backup protects you against any data loss.
The creation space
What does LocalProse look like?
How much does it cost?
Pricing: Free writing software or Pro Lifetime
Free
- Full Editor: unlimited projects & chapters
- Idea Box: advanced idea management via a reorganizable post-it board
- Notes & Goals: annotate your text and define the purpose of each chapter
- Visual Comfort: Focus mode, Pomodoro method, and Light / Dark theme toggle
- World-Building: manual creation of profiles (Characters, Locations, Items) and relationship mapping
- Import text (.txt), Word (.docx), and scan (image)
- Export text (.txt), Word (.docx), and PDF
- Multilingual EN/FR: writing and interface in English and French
- Zero dependency: your files belong to you
- Privacy: your writing stays locally on your PC / Mac
🥇 Pro Lifetime
- All Free features
- Mobile app with Wi-Fi LAN sync: the offline mobile companion
- Correction and Rewriting
- AI Inspiration (suggests the continuation of your story to unlock your imagination)
- Thesaurus: synonyms, antonyms, lexical fields, and figures of speech
- AI World-Building Studio: automatically create and complete your profiles (Characters, Locations, Items) from simple descriptions
- Timeline: manage the temporality and evolution of your entities/relationships throughout the story.
- Interview Mode: chat live with your characters (embodied by the AI) for roleplaying and finding their "voice"
- AI Consistency Audit: narrative analysis comparing your text to your goals
- Print Preview Mode: Preview your novel in your chosen target format (Pocket, Trade Paperback/A5, Large/6x9...) before exporting it
- Export EPUB (eBook format compatible with Kindle, Kobo, etc.) for professional-quality layout
- Dictation Mode for voice writing
(Speech-to-text) - Smart Adaptation: AI modes automatically adjusted based on your computer's power.
- 100% Private AI: your data is never used to train Big Tech AIs
- All updates included for life: all new features and improvements to the software
- Offline Verification: your license remains valid even if our servers shut down
- Support: you are funding an independent project (development, maintenance, support)
7-day free trial, no strings attached, activated directly from the app - no credit card required.
It's the perfect time to verify that the AI runs smoothly on your machine before acquiring your lifetime license.
Once acquired, your Pro license is valid on 2 computers + 2 mobile devices, for life, with no renewal fees.
Artificial Intelligence at home
What machine do you need to run local AI?
LocalProse adapts to your machine. The software detects your computer's power on first launch and automatically adjusts the AI's "brain" to guarantee a smooth experience.
| Component | Minimum (Auto Ultra-Eco Mode) | Recommended (Ultra-Creative Mode) |
|---|---|---|
| Processor (CPU) | Intel Core i3/i5 or equivalent | Apple Silicon (M1+) or Intel i7/Ryzen 7 |
| Memory (RAM) | 4 GB - 6 GB | 16 GB or more |
| Graphics (GPU) | Integrated graphics | NVIDIA RTX (8GB+ VRAM) or Mac |
| Disk Space | SSD with at least 8 GB of free space (including local models installed upon launch). Up to roughly 12 GB depending on your AI engine configuration choices. | |
| Mobile App (Android/iOS) | Smartphone running Android >= 8.0 or iOS >= 13.0. Requires a Wi-Fi connection for PC/Mac synchronization. | |
LocalProse leverages the unified architecture of your Apple Silicon chip. The AI is fast and optimized to preserve battery life.
Not sure about your hardware? Don't take any risks: start the 7-day free trial whenever you want directly from the app (it was built for this) to ensure the AI runs smoothly before investing in the Lifetime license.
Quick Diagnostic
Will my computer run LocalProse?
Select your hardware configuration to see how LocalProse will automatically adapt to your machine on first launch.
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Good to know: LocalProse uses Gemma 3 QAT (Quantization-Aware Training) models. They maintain full precision (BF16) quality while being 3x lighter on your memory.
🧠 AI Brain (LLM)
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-👁️ Vision OCR (VLM)
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-🎙️ Voice Dictation
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-📚 Context Window
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Download LocalProse v3.4 - Windows, macOS, Linux, Android and iOS
Choose your platform, download and install the app directly on your device.
Stop writing alone in front of your screen.
Join the Augmented Authors' HQ on Discord and Reddit. This is where everything happens: writers share their LocalProse experiences and craft their best stories together.
- 💬 Live chat with the developer
- 🆘 Continuous technical support
- 💡 Tip sharing to master local AI usage
Frequently Asked Questions
Do I need a very powerful computer or graphics card?
LocalProse features a smart hardware detection system. On first launch, the software analyzes your machine's memory (RAM) and automatically activates the AI engine parameters best suited to your setup. Whether you have a standard office laptop (4 to 8 GB of RAM) or a more powerful machine (Mac M1-M5 or Gaming PC), you'll enjoy the best possible AI assistance without ever slowing down your computer.
Is there a 100% free version?
Yes. If you decide not to acquire the Pro Lifetime license after the trial, LocalProse remains an excellent structured text editor with Focus mode, project management, and World-Building (character profiles, locations, mapping), but without the generative AI features.
Can I test the AI before paying?
Absolutely. We offer a 7-day free trial offering full access to all AI features (correction, rewriting, inspiration, universe management, character interviews, voice dictation, thesaurus, analysis). It's the best way to verify that your computer is powerful enough to run local intelligence before investing in the Pro Lifetime license.
Do my texts train the AI?
No! That is the very reason LocalProse exists. Every action related to the creation of your projects happens locally at your place, for total confidentiality. Nothing you write in LocalProse ever leaves your machine.
Is the software 100% offline?
Everything you type or dictate in LocalProse, on PC or mobile, never leaves your devices. Mobile/PC synchronization is done over local Wi-Fi (LAN) via your home Internet router, without ever passing through a Cloud server. An Internet connection is only required to activate your trial period and your Pro Lifetime license, then occasionally to download AI "brains" during first installation and updates. The rest of the time, you can fully use the software without a connection.
What is the difference between LocalProse and Sudowrite?
Sudowrite is an online writing platform where your texts are stored on remote servers (Cloud) with a monthly subscription and credit quotas. LocalProse works entirely on your machine: the AI runs locally, your data never leaves your hard drive, and AI usage is unlimited. LocalProse offers a Pro Lifetime license with a one-time payment compared to expensive monthly subscriptions.
Is LocalProse a good alternative to Scrivener?
Yes. LocalProse includes Scrivener's structuring features (chapters, character sheets, world-building, relationship mapping) and adds unlimited local AI and an offline Dictation mode. Like Scrivener, LocalProse offers a Pro Lifetime license as a one-time payment, but automatically adapts to your hardware and works on Windows, macOS, Linux, Android and iOS. All updates are included for life at no extra cost.
Which writing software uses local AI without a Cloud subscription?
LocalProse is one of the few writing software tools to integrate a local AI that runs on your own machine, without depending on Cloud services like ChatGPT or Claude. This guarantees total manuscript privacy and unlimited use without credit quotas.
Is there a free novel writing software?
Yes. LocalProse offers a completely free version that includes the full editor with unlimited projects and chapters, Focus mode, idea box, universe management (characters, locations, items), and Word, PDF, and TXT export. No time limits, you can write a novel from A to Z in the tool without paying a cent.
Where can I find help or chat with other authors?
Join the Augmented Authors' HQ on our official Discord server. It's the perfect place to get live technical support, suggest new features, and share tips with other writers. The invitation is available here: Join the LocalProse Discord.
The craftsman behind the workshop
I designed LocalProse for authors who want to leverage the best of AI without sacrificing the confidentiality of their texts or their creative independence.
I know how frustrating it is to have your momentum broken by a credit system, or to wonder where your texts really go when using online tools.
LocalProse brings together these two freedoms — a private workshop running locally on your own machine and unlimited usage without artificial quotas — so that AI becomes what it should be: a tool at the service of writing, not another constraint.