Side Panel Calculator Chrome extension security report

A calculator that lives in your side panel. Side Panel Calculator uses Chrome's side panel API (chrome.sidePanel) to keep a calculator one click away on any page. No extra tab or window — calculate right where you are, without breaking your flow. FOUR CALCULATION MODES • Simple — just the four basic operations, nothing else • Advanced — ±, memory (M+/M-/MR/MC), and custom quick-calc buttons • Scientific — sin/cos/tan, log, ln, √, powers, factorial, with Deg/Rad switching • Programmer — binary/octal/decimal/hex conversion, AND/OR/XOR/NOT/shifts, selectable bit width (8/16/32/64-bit) Switch modes instantly from the dropdown at the top. QUICK-CALC BUTTONS Create up to 6 of your own one-tap buttons — like "+10% tax" or "-20% discount" — with your own label, operation, and value. They appear right above the keypad on the Calc tab. UNIT & CURRENCY CONVERSION Convert length, weight, and data size, plus currency conversion with live exchange rates. Rates come from the Frankfurter API, which publishes official European Central Bank (ECB) rates, and are cached on your device (with the fetch time shown) to avoid unnecessary requests. CALCULATION HISTORY Every calculation is listed with its expression and result. Tap an entry to reuse it, copy the whole history at once, or clear it when you're done. "AC" (clear all) and "C" (clear last) are separate buttons, so a stray tap won't wipe your history — and even a full clear can be undone for a few seconds. CUSTOMIZABLE APPEARANCE Light, Dark, or fully custom themes. Adjust background, text, and button colors, font size, and corner radius to match your taste. MULTILINGUAL Available in Japanese, English, Simplified Chinese, and Korean. Follows your browser's language automatically, or set it manually from Settings. MINIMAL PERMISSIONS Only two permissions are requested: "storage" (to save your settings and history) and "sidePanel" (to show the panel). No ads, no tracking, no personal data ever leaves your device. Great for anyone who wants quick math while researching or working, frequent tax/discount calculations while shopping or doing expenses, everyday currency or unit conversion, or a scientific/programmer calculator for study or engineering work. Keep it pinned to your side panel and make everyday calculations effortless.