Open Source
Free
Free forever (AGPLv3)
- Data storage
- 100% local SQLite / JSON storage
- Model support
- Runs GGUF models and connects to remote APIs
- Local server
- Integrated OpenAI-compatible local server
Jan
● Identity checkedCode · Vendor site 2026-10-04
Jan is an open-source, privacy-focused ChatGPT alternative that runs 100% offline on your computer. It features an intuitive desktop interface, a local inference engine (Cortex), extensions support, and an OpenAI-compatible local API server for offline AI development.
- Category
- Code
- Free access
- 100% free and open source (AGPLv3) with no ads, tracking, or paywalls.
- API access
- Built-in local API server compatible with OpenAI standards (`localhost:1337/v1`), plus Cortex engine CLI for headless server deployments.
Is Jan right for you?
A good fit for
Privacy enthusiasts, developers, and knowledge workers who want complete control over their conversations and data without third-party cloud surveillance.
Before you choose
Execution speed relies entirely on local CPU/GPU hardware; limited to models that fit in available system memory.
Open source philosophy
Jan provides an open-source, customizable personal AI assistant designed to run locally on your own machine without sending personal prompts to cloud servers.
What it can do
Features & capabilities
Unknown is different from unavailable. Each fact carries its own evidence.
| Capability | Value | Evidence | Checked |
|---|---|---|---|
| Offline Privacy | Zero telemetry by default; conversations, attachments, and model files remain strictly on the user's local disk. | Facts sourced | 2026-10-04 |
Understand the total cost
Jan pricing & plans
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Frequently asked questions
What is Jan used for?
Jan is an open-source, privacy-focused ChatGPT alternative that runs 100% offline on your computer. It features an intuitive desktop interface, a local inference engine (Cortex), extensions support, and an OpenAI-compatible local API server for offline AI development.
Does Jan have a free plan?
100% free and open source (AGPLv3) with no ads, tracking, or paywalls.. This record lists ongoing free access; check the plan limits before starting.
How much does Jan cost?
No paid monthly price is listed; this record treats the product as free to start. See the plan cards for entitlements, billing commitments and seat minimums.
Can I use Jan through an API?
Built-in local API server compatible with OpenAI standards (`localhost:1337/v1`), plus Cortex engine CLI for headless server deployments.. API access and subscription access may have different terms; consult the linked sources.
What should I check before choosing it?
Execution speed relies entirely on local CPU/GPU hardware; limited to models that fit in available system memory.
Price history
No retained pricing changes yet. A current price alone does not establish a historical trend.
How this profile is supported
Identity and profile
Reviewed vendor source
Read original source ↗Facts apply to the named version and check date. Send a sourced correction if something changed.