Last updated: March 24, 2026
None. Ibid does not collect any personal information, usage data, browsing history, or citation data.
Ibid is a browser extension that processes citations entirely within your browser:
activeTab permission).chrome.storage.local on your device. It is never transmitted anywhere.Ibid makes network requests in two scenarios:
a) Auto-enhance (when a DOI/identifier is detected on the page):
When Ibid detects a DOI, ISBN, PMID, or arXiv ID on a page you're citing, it automatically looks up complete metadata. This happens when you open the popup — no background requests. If no identifier is found but a title exists, Ibid may search by title as a fallback.
b) Manual enhance (clicking the "Enhance" button):
When you paste an identifier or URL and click Enhance.
All requests use multiple sources with automatic fallback. Only the identifier is sent — never personal data, browsing history, or cookies:
| Service | URL | When | Data sent |
|---|---|---|---|
| OpenAlex | api.openalex.org | DOI lookup (primary), title search | DOI or title string |
| CrossRef | api.crossref.org | DOI lookup (fallback) | DOI only |
| Open Library | openlibrary.org | ISBN lookup (primary) | ISBN only |
| Google Books | googleapis.com/books | ISBN lookup (fallback) | ISBN only |
| NCBI/PubMed | api.ncbi.nlm.nih.gov | PMID lookup | PMID only |
| arXiv * | arxiv.org | arXiv paper metadata | arXiv ID only |
| Semantic Scholar * | api.semanticscholar.org | arXiv papers (fallback) | arXiv ID only |
| Citoid (Wikipedia) * | en.wikipedia.org/api | URL-based citation | Page URL only |
| doi.org * | doi.org | Follow DOI to publisher page | DOI only |
| GitHub | raw.githubusercontent.com | On-demand citation style download | Style filename only |
* These services require optional host permissions (see section 4). They are only contacted if you have granted access. Without access, Ibid uses the other services which work without extra permissions.
All APIs are public and free. All requests are rate-limited (minimum 200ms between requests per host) to prevent abuse. No requests are made in the background or without your action.
Required permissions (granted at install):
| Permission | Why |
|---|---|
activeTab | Read the current page's metadata when you click the Ibid icon. Only the active tab, only when you click. |
scripting | Inject the metadata extraction script into the current page on demand. |
storage | Save your citations, projects, and settings locally on your device. |
sidePanel | Open the library management panel alongside your browser. |
contextMenus | Add "Cite this page", "Cite linked page", and "Import DOIs" to the right-click menu. |
Optional host permissions (requested only when needed, you choose):
| Host | Why |
|---|---|
arxiv.org | Fetch complete author lists and metadata from arXiv paper pages. Without this, arXiv papers may have incomplete author data. |
api.semanticscholar.org | Alternative metadata source for computer science papers when arXiv is unavailable. |
en.wikipedia.org | Resolve any URL to structured citation data via Wikipedia's Citoid service (uses Zotero translators). |
doi.org | Follow DOI links to publisher article pages for Highwire/Dublin Core metadata extraction. |
Optional permissions are never granted automatically. You are prompted only when Ibid needs access to one of these services for a specific citation. You can grant or revoke access anytime from Settings → Scholarly API Access. If denied, Ibid falls back to services that don't require extra permissions (OpenAlex, CrossRef, Open Library, Google Books, NCBI).
We do not request <all_urls>, tabs, webRequest, identity, or any other broad permissions.
The extension uses wasm-unsafe-eval in its Content Security Policy. This is required to run the Rust/WebAssembly citation engine. It does not enable arbitrary code execution — it only allows compiled WebAssembly modules bundled with the extension to run.
chrome.storage.local on your device.Ibid does not use any third-party analytics, advertising, crash reporting, or tracking services. There are no third-party scripts, SDKs, or pixels included in the extension.
Ibid does not collect any data from anyone, including children. There are no accounts, no registration, and no personal information collected.
If we ever change this privacy policy, we will update the "Last updated" date above and include a notice in the extension's changelog. Since we don't collect any data, changes would only relate to new features that might introduce network requests (such as cloud sync in future versions), which would always be opt-in and clearly disclosed.
If you have questions about this privacy policy, contact us at: