Folio: Currency Converter

Privacy Policy

Last updated: November 8, 2026

Folio is a Chrome extension developed by Vladyslav Dihtiarenko. It converts amounts between currencies. You do not need an account to use it. The developer does not receive your entered amounts, currency selections, or settings from the extension.

Data stored on your device

Folio uses Chrome's local extension storage to save your current conversion amount, currency selections and order, conversion mode, display and language settings, and the last validated exchange-rate snapshot. This allows Folio to restore your preferences and use saved rates without an internet connection. Folio does not keep a history of your conversions or older rate snapshots.

Folio does not send this saved state to the developer or synchronize it between devices. A browser preview used for development saves the same state in that preview site's local browser storage instead.

Exchange-rate requests

Folio requests exchange-rate data when you open it and when you request a refresh. It downloads a fixed data file from latest.currency-api.pages.dev over HTTPS, an encrypted network connection. The file is provided by the exchange-api project and hosted on Cloudflare Pages.

These requests do not include your entered amounts, selected currencies, or settings. As with other internet requests, the hosting provider receives your IP address and standard connection and request metadata. Its handling of that information is governed by its own policies, including Cloudflare's Privacy Policy . The developer does not operate this rate service.

Permissions and tracking

Folio uses the storage permission to save its local state and permission to contact the rate-service domain to download rates. It does not read the content of websites you visit, your browsing history, or your browser cookies. It does not include advertising, analytics, or tracking tools. The developer does not sell your extension data or use it for advertising.

Feedback and external links

If you choose to email feedback, the developer receives the email address, message, and any attachments you send. That information is used to respond to your request and investigate reported problems. Email is processed by the email providers involved and retained as needed to handle the conversation. You can request deletion by contacting the developer.

Links to the developer's website and optional donation page open external websites only when you select them. Those websites handle information under their own privacy policies. Folio does not process payments or receive payment-card details within the extension.

Retention and deletion

Local state stays on your device until it is replaced or removed. Changing an amount, selection, or setting replaces its saved value; receiving a new validated rate snapshot replaces the previous snapshot. Uninstalling Folio removes its Chrome local extension storage. For a development preview, clear that preview site's browser storage to remove its saved state.

This policy page

This page contains no analytics scripts or tracking tools. When you visit this page on GitHub Pages, GitHub may process technical information about visits, such as IP addresses, under the GitHub General Privacy Statement .

Changes and contact

This policy may be updated when Folio's data handling changes. The date above identifies the latest revision.

For privacy questions or requests, contact Vladyslav Dihtiarenko at vladyslav.dihtiarenko@gmail.com .