HilbertRaum
Offline AI workspace: chat, document Q&A with citations and local translation, nothing leaves your machine
- Version
- 0.1.64
- Released
- October 2026
- Size
- 110-158 MB (app; engine and models download separately)
- License
- GPL-3.0 · Open source
About HilbertRaum
HilbertRaum is an AI workspace for the days when you do not want your questions or documents going anywhere. It runs entirely offline on Windows, macOS and Linux: chat with a local model, ask questions about private files, and nothing leaves the machine - no cloud fallback, no web search, no telemetry, no account. The app, the models and your data can even live together on an encrypted USB drive and travel between computers.
You do not need to pick a model yourself. The app benchmarks your hardware and recommends one from a small, tested catalog (Qwen, Gemma, Ministral, Granite): more memory gets you a smarter model, a modest machine still gets a working one.
Document Q&A comes with citations: import PDFs, Word files or plain text and get answers that point back to the exact passages in your files. You can register Wikipedia in about a hundred languages, Wiktionary or Wikivoyage as offline knowledge packs, translate text and whole documents locally, transcribe audio with Whisper, dictate prompts, OCR scanned pages and ask a vision model about your pictures. An optional local API, off by default, lets other programs use your running model.
Setup is honest rather than instant: the app is the shell, and the AI engine plus at least one model download separately inside the app, all verified before use. The project is pre-release with unsigned installers, so expect the usual SmartScreen or Gatekeeper warnings. Free and GPL-3.0.
Our discovery article has the full story: https://www.freewares.org/blog/hilbertraum-ai-workspace-fully-offline
Key Features
Fully offline AI chat
No cloud fallback, no web search, no telemetry, no account
Hardware benchmark
The app measures your machine and recommends a tested model
Curated model catalog
Qwen, Gemma, Ministral and Granite, matched to your memory
Document Q&A with citations
Answers point to the exact passages in your PDFs, Word and text files
Pros & Cons
Pros
- Genuinely offline - private documents never leave the machine
- Citations make every AI answer checkable against your files
- Hardware-matched model recommendation removes the guesswork
- Encrypted portable workspace travels between computers
- Free and GPL-3.0
Cons
- Day one involves several large downloads (engine, models, packs)
- Pre-release: unsigned installers trigger SmartScreen and Gatekeeper warnings
- The offline guard detects network attempts rather than blocking them
- Larger models need a reasonably capable machine
Frequently Asked Questions
Does HilbertRaum need an internet connection?
Only to download the app, AI engine, models and knowledge packs. After that it works fully offline under a deny-by-default network policy.
Which AI models does it use?
A small tested catalog: Qwen, Gemma, Ministral and Granite. The app benchmarks your hardware and recommends the smartest model your memory can handle.
Can it answer questions about my documents?
Yes. Import PDFs, Word files or plain text and ask questions - answers include citations pointing back to the exact passages in your files.