Polysignal Currency Converter by Polysignal

Automatically convert prices on any webpage to your preferred currencies, or manually convert them using the calculator.

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You'll need Firefox to use this extension

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About this extension

Convert prices on any webpage to your preferred currencies instantly. See real-time conversions just by hovering over prices - no clicking required.

★ Key Features:
• Automatic price detection on any website
• Support for 30+ fiat currencies (USD, EUR, GBP, JPY, and more)
• Support for 20+ cryptocurrencies (Bitcoin, Ethereum, and more)
• Hover tooltips show instant conversions to your selected currencies
• Built-in calculator for manual conversions
• Dark/light theme support
• Fully customizable price highlighting styles
• Disable on specific websites

★ Privacy First:
• 100% local processing - your data never leaves your browser
• No tracking, analytics, or data collection
• Fully-opened source code: https://github.com/PolysignalAI/cc-addon
• NO ACCOUNT REQUIRED

★ Smart Features:
• Auto-detects your local currency based on timezone
• Intelligent caching for fast performance
• Works offline with cached rates
• Minimal resource usage, highly optimized

Perfect for:
• International shopping
• Travel planning
• Cryptocurrency traders
• Anyone dealing with multiple currencies

Simply install, select your preferred currencies, and start browsing. Prices are automatically detected and highlighted. Hover over any price to see instant conversions.

Contact us using the form at https://cc.polysignal.com

Developer comments

Fully open source and secure: https://github.com/PolysignalAI/cc-addon

The addon uses two very well known PUBLIC and FREE exchange rate APIs to fetch the latest exchange rates for conversions. Those are the ONLY network calls that are done on the extension, ever.

Everything else is completely done within the browser. No personal data is EVER sent ANYWHERE. Full transparency.

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