SATURDAY, AUGUST 29, 2026|No. 13114
Technology · Privacy

Hister Offers Private, Self-Controlled Search Index for Personal Data

Hister is a new open-source tool that allows users to create a private, full-content search index of their own documents and visited web pages, emphasizing user control and privacy.

The Hister logo, a stylized 'H', is displayed against a clean background.
The Hister logo, a stylized 'H', is displayed against a clean background. · Photo by Tim Mossholder on Unsplash
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Your Own Search Engine

Hister turns the pages you visit and the files you keep into a private, full content search index that you control.

Get started Download extension

Free software on GitHub

Hister

1,924 pages indexed

privacy notes I read last month

6 results in your index0.04 sec

The ultimate way to protect digital privacy

hister.org/posts

Keep useful pages close, searchable, and under your control...

privacy-notes.md ~/documents/notes

A private index makes the things you already found useful again.

Free software

AGPLv3

Self hosted

Run it on your own machine or server

Privacy focused

No telemetry, no external requests

Preserve Knowledge. Find It Again.

Hister stores extracted document content with the search index and displays it as a readable preview alongside search results.

Download Hister Try the live demo

Search the content you chose to index

Look beyond bookmarks and filenames. Hister indexes the full content of the pages and files you choose, then keeps that searchable knowledge on a server you control.

Search the actual content

Look beyond titles and URLs to the words inside every indexed document.

Narrow with precision

Use fields, phrases, wildcards, negation, priorities, and your own aliases.

Read it in context

Open a clean stored preview beside the results without losing your search.

Explore the query language

Hister search results with a stored document preview open

Collect

Save newly visited pages with the browser extension, watch local folders, import your history, or crawl a site.

Visited pages

Local files

Index

Hister extracts the parts that matter and indexes their full text on the server you choose.

Full text

Stored context

Find

Search from the web, terminal, command line, or let an AI assistant retrieve it through MCP.

Web and terminal

MCP assistants

The simple loop

Browser extensions can index pages as they are visited. File watchers, history imports, and crawlers add other sources to the same index.

Why Hister

Preserve Knowledge. Keep Control.

The index, stored page content, and rules remain on the Hister server you configure. The server has no telemetry and does not require a cloud service.

Read the privacy model

No telemetry

The server does not phone home or report what you search.

No mandatory cloud

A complete personal setup can run on one local machine.

Your chosen server

Clients send indexed content only to the Hister server you configure.

Auditable software

The source is public and licensed as free software under AGPLv3.

Your private search path

Your sources

Pages, files, and history you choose

Your Hister server

Extraction, rules, and searchable index

Your answers

Results, previews, and integrations

Optional semantic search sends text to the embeddings endpoint you configure. Browser extensions may retrieve page favicons. You choose whether and where these connections run.

Index automatically

Browser extensions can index visited pages automatically. File watching, history imports, and the crawler add other sources.

  • Browser extensions
  • Local file watching
  • History import
  • Website crawler

Search precisely

Full text search supports field filters, quoted phrases, wildcards, negation, date ranges, and query aliases.

  • Field filters
  • Quoted phrases
  • Wildcards and negation
  • Query aliases

Extract content

Content extractors handle structured data from supported formats and websites. Semantic search is optional.

  • Content extractors
  • Semantic search
  • Language aware indexes
  • Readable previews

Apply index rules

Skip and priority rules control indexing and ranking. Versioning can retain earlier document content.

  • Skip rules
  • Priority rules
  • Version tracking
  • Sensitive content checks

Use multiple interfaces

The same index is available through the web interface, terminal client, CLI, HTTP API, and MCP server.

  • Web interface
  • Terminal interface
  • HTTP API and CLI
  • MCP server

Choose a deployment

A single binary can run locally. Shared servers support user scoped access with SQLite or PostgreSQL.

  • No config quickstart
  • SQLite or PostgreSQL
  • Multiple users
  • Docker and Nix

Additional capabilities

Hister also supports multiple crawler backends, language specific indexes, content versioning, ownership rules, and configurable extractors.

Explore docs

PAN's pipeline reviewed approximately 1 open sources for this article. No human editor reviewed this article before publication.

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