Perihan is a private AI assistant that learns your messages, emails, documents, and files — then helps you find anything and manage your life. All on your own machine.
Free · Open source · No account needed · No data leaves your device
Not another chatbot that knows the internet. An assistant that knows your life — privately, on your own machine.
Your life is scattered across WhatsApp groups, Gmail threads, Google Drive, and local files. When you need to find something, there's no single place to look.
Perihan indexes all your personal data into one private knowledge base. Ask a question in any language, with typos, and get an accurate answer — with source citations — in seconds.
Today it searches. Tomorrow it coaches, reminds, and helps you act — grounded in context that only your assistant would know.
Built for real life — messy data, multiple languages, typos and all.
Everything runs on your machine. No cloud, no accounts, no data ever leaves your device. Use local AI with Ollama for complete privacy.
WhatsApp, Gmail, Google Drive, local files — Perihan searches across all your data sources in one query. No more jumping between apps.
Real-world queries are messy. Perihan handles misspellings, missing accents, and partial matches — "hedgehg" still finds "hedgehogs".
Ask in English, get answers from Turkish documents — or any other combination. The system is language-agnostic by design.
When a simple search isn't enough, Perihan autonomously uses multiple tools — re-searching, reading documents, digging deeper — until it finds your answer.
Fully open source. Inspect the code, contribute, run it your way. No vendor lock-in — switch between local and cloud AI models at runtime.
No technical expertise required. Download, index your data, and start asking.
Download the one-click installer for Windows. Perihan sets itself up — including a local AI model if you want full privacy.
Point Perihan at your WhatsApp exports, connect your Gmail and Google Drive, or add local folders. It indexes everything into a private knowledge base.
Ask questions in natural language — across all your sources, in any language, with typos. Get answers with source citations in seconds.
Free, open source, and completely private. Your data never leaves your machine.
Download for WindowsUmut is a senior software developer based in Bournemouth, UK, with over two decades of experience spanning ERP systems, finance and accounting platforms, identity and access management, payment systems, and enterprise architecture.
Perihan was born from a personal need — managing the chaos of school WhatsApp groups, legal documents, family logistics, and work files spread across too many apps. Existing AI assistants know the internet but don't know you. So Umut decided to build one that does.
His career has taken him from co-founding a software company in Istanbul — building ERP and e-commerce solutions for real businesses — to leading development on enterprise security and financial systems in London. He brings the perspective of someone who has built systems that businesses and people depend on, and now channels that experience into building a personal AI that real people can rely on every day.