Hister: Your Own Private, Self-Hosted Search Engine
Hister – A private, full content search index that you control
Hister is a free, open-source search engine that indexes your entire digital life—browsing history, local files, and even entire websites. It offers full-text and semantic search, a built-in crawler with browser backends for JavaScript-heavy pages, and an MCP server so AI assistants can query your personal index. With a focus on privacy, it's fully self-hosted with no telemetry or cloud sync. Extensions for Chrome and Firefox automatically capture pages as you browse, and a terminal UI provides keyboard-driven search.
Your data never leaves your own infrastructure.
- asciimoo
Ohi, author here! Thanks for posting Hister. Feel free to A.M.A.
My first free software search project was Searx, a privacy respecting metasearch engine, but because of the limitations of the metasearch concept, I've decided to take a different approach.
Hister builds a personal search index from pages you visit, bookmarks, browser history, local files, and crawled websites. It stores extracted content with offline result previews, so information remains searchable even when the original page changes or disappears. It supports full text and semantic search, can run entirely on your own machine, and includes a web interface, command line tools, and an MCP endpoint for assistant integrations.
Project page: https://github.com/asciimoo/hister
Tiny read-only demo: https://demo.hister.org/
- quasigod
I just finished setting this up yesterday and I'm kind of obsessed with it. I was previously a heavy user of Karakeep, but I hated forgetting to save something and losing it. I also think Hister's semantic search is a better solution than AI generated summaries and tags. Support for local docs is super cool too, I have it set up to index my org notes directory.
- renegat0x0
I have created something similar, yet different. I maintain my own Internet domain index.
https://github.com/rumca-js/Internet-Places-Database
Also I maintain android app that can be used to search places.
https://f-droid.org/en/packages/io.github.rumcajs.offlineweb...
I believe hister you have to fill in with your data, right?
- wmchen
I set this up a few months ago based on asciimoo's comments on HN, and barely used it at first, but I realized not too long ago that it could be a pretty useful research tool for one of my hobbies (award travel), that revolves around being in the know around various concepts and quirks.
I scraped and imported posts from the blogs I regularly reference for award travel, then hooked it up to OpenCode/Codex as an MCP server and used that corpus for research on those topics. So I can ask things like "has anyone ever mentioned running into this problem before?" [1]
If you have a hobby or working situation that requires you to regularly reference a core set of websites or reference materials, Hister provides almost all the tools out of the box to start a search engine against it. The default datasets they promote include the Python Stlib, MDN and RFC corpus, as an example. [2]
- lnenad
I LOVE the concept. I will play around with the execution, if it works as described this is a great product.