A Chrome & Firefox extension that lets you highlight any currency amount on a webpage and instantly convert it to your preferred currency. No copy-pasting into Google, no need of switching tabs.
- Highlight a currency value on any page (e.g.
€250,£99.99,1500 JPY) - A small button pops up right below your selection
- Click it, the converted amount shows up instantly
That's it. No popups to fill out & no extra steps.
You can highlight currencies in pretty much any format you'd see online:
| Format | Examples |
|---|---|
| Symbol before amount | €50, £1,000.50, ¥10000, ₹500 |
| Symbol after amount | 50€, 1000¥ |
| Currency code | 100 EUR, GBP 200, 50JPY, CAD 75 |
It supports 60+ currencies including common ones like EUR, GBP, JPY, INR, and crypto like BTC and ETH.
Click the extension icon in your toolbar to pick which currency you want everything converted to. It defaults to USD, but you can change it to any of the 30+ options in the dropdown. Your choice is saved and syncs across devices if you're signed into your browser.
git clone https://github.com/YourUsername/EclipseConvert.git
cd EclipseConvert
npm install
npm run build
- Go to
chrome://extensions - Turn on Developer mode (top right)
- Click Load unpacked and select the
distfolder
- Go to
about:debugging#/runtime/this-firefox - Click Load Temporary Add-on
- Navigate into the
distfolder and selectmanifest.json
Or to install from a zip:
npm run package
This creates eclipseconvert.zip in the project root. Load it via Load Temporary Add-on in Firefox, or submit it to AMO.
After pulling new changes, run npm run build again and reload the extension in your browser.
Rates come from fawazahmed0/exchange-api, free API with 200+ currencies and no rate limits. Rates are fetched live and cached for 1 hour so it doesn't spam the API on every selection. If the primary CDN is down, it automatically falls back to a Cloudflare mirror.
EclipseConvert doesn't collect, store, or transmit any user data. Currency lookups go directly to the exchange rate API — nothing passes through any intermediary server.
MIT