Is Currency Converter Plus Safe? — Extension Safety Profile

This extension requests only storage, alarms, and host access to https://rate-api.oeo.li/. That means it can save your settings, periodically update exchange rates in the background, and fetch data exclusively from its own API server. It cannot read or modify data on any other website you visit. For a currency converter, this permission set is minimal and exactly what you would expect — the extension simply needs to retrieve exchange rates and remember your preferences.

Currency converters are among the lowest-risk browser extensions because they typically require few permissions. However, a careful user should still be mindful of clones or lookalikes that impersonate popular converters to inject ads or steal data. Always check that the extension’s host access is limited to a recognizable API domain, as this one is. The developer’s privacy declarations state that data is not sold, not used for unrelated purposes, and not used for creditworthiness, which are positive signs.

According to the fact sheet, this extension scored 100% in Data & Privacy, indicating a strong commitment to protecting user information based on the developer’s self-declarations. Its weakest area is Maintenance & Ownership, which suggests limited transparency about the publisher’s identity or support structure. Still, with a grade‑A safety score, manifest V3, and well‑scoped permissions, the overall risk remains low.