Indexarius
Bookmarks that organize themselves
Indexarius is a free Chrome extension. When you bookmark a page it works out whether that page is a film, a book, a repo, a recipe or a paper, files it under that kind and finds the details you would search by. All of this happens inside your browser.
Add to Chrome
Categorizes as you save
Pages from well-known sites, such as IMDb, GitHub, Goodreads or arXiv, are recognised by rule. Any other page goes to a small model that runs on your computer and reads the page text. It also gives each bookmark a few keywords, and search matches them. You do not make folders unless you want them.
Runs in your browser
There is no Indexarius server. Bookmarks, the model and the search index are stored in Chrome on this computer. Private bookmarks, about health, money or other private matters, are never fetched and can be encrypted with a passphrase.
Exports when you want
An Indexarius backup, Obsidian notes (a .zip of Markdown) or a Letterboxd file, from the Export page. If you turn on filing, bookmarks also go into Chrome folders you name, such as Films / 2019 or Recipes / Sourdough.
Categories
Twenty-three kinds, and any you add yourself, each with its own details. A film gets its year and IMDb id, a book its author, a repo its language and star count; these come from the page or, if you turn the service on, from Wikidata, Open Library, GitHub or Wikipedia. Search finds a bookmark by any of them. Add categories for what your bookmarks are about, such as woodworking or climbing, and turn off the kinds you never use. Move a bookmark by hand and the ones like it follow. Inside your library it also finds groups, such as every sourdough page you kept, whatever site it is on, and offers each as a topic: group it, rename it, or make it a category.
Sweep
Go through what you kept, one bookmark at a time. Each shows beside its own page, live, with what Indexarius knows about it: where it is filed, when you saved it, when you last opened it. Keep it, or move it to Trash. Start with the oldest, the ones you never opened, one category or folder, or the pages that no longer load: Sweep checks each address as it goes and says when a page is gone. Trash is a folder in Chrome, so anything can go back where it was, and it is deleted for good when you empty it, or after 30 days if you choose.
Privacy
What the extension stores and when it uses the network. The privacy page lists every case, with the permissions it asks for and why.
| Where bookmarks are stored | In Chrome, on this computer, in a database inside the extension. Removing the extension removes it. |
|---|---|
| Who can see them | You. There is no account, no server, and nothing is logged or counted. |
| What uses the network | Downloading the model once, about 200 MB, from Hugging Face. Fetching bookmarked pages for their description, each from its own site and never from your local network; you can turn this off. In Sweep, while it is open, showing a bookmark's page and asking its address whether the page is still there, never for a private bookmark. If you turn them on, asking Wikidata, Open Library, GitHub or Wikipedia about a bookmark. Another categorization model, Simkl sync, crash reports and Chrome sync of your tags and ratings, only after you turn them on. |
| What never does | Private bookmarks: health, money, legal matters, identity documents, sex or dating, religion or politics, job hunting. Spotted on your computer, never fetched or looked up, and you can check every guess, mark your own, and encrypt them. |
Questions
Does it move my bookmarks?
Not unless you turn on filing in Settings. Until then it only adds labels, and your bookmarks stay where they are. Sweep moves a bookmark only when you put it in Trash, a folder in Chrome you can take it back out of.
How often is it right?
About three in four from the title alone, and more once it has read the page. Bookmarks from sites it knows, like IMDb or GitHub, are categorized by rule and come out right. When one is wrong, move it, and the ones like it follow.
How fast is it?
A new bookmark is categorized within seconds of saving it. The first run over an existing library takes a few minutes, even for a thousand bookmarks or more.
Why a 200 MB download?
That is the categorization model. It runs on your CPU, so nothing has to leave the computer. It downloads once and is kept in the browser cache. It is needed even if you let Chrome's built-in Gemini Nano pick categories, because it also spots private bookmarks, finds keywords and groups topics.
Does it categorize what I bookmark on my phone?
Chrome on a phone has no extensions, so Indexarius categorizes phone bookmarks on the next computer where Chrome is open with it, once Chrome sync brings them over. To have them categorized while you are away, keep one computer running: here is how.
Which Chrome does it need?
Chrome 116 or later, on a computer. Chrome on a phone has no extensions; the question above says how phone bookmarks get categorized.
Is it free?
Yes, with no paid tier planned. There is a Buy Me a Coffee link in Settings.
Is the code open?
No. The privacy page says exactly what the extension sends and when, and Chrome's developer tools let you check it.