Search Popup Extension - Smart Text Selection Assistant

A blazing-fast browser extension that revolutionizes how you interact with text on any webpage. Select any text and instantly get a context-aware popup with smart actions: search, copy, convert units/currencies, visit URLs, and more. Built with cutting-edge performance optimizations for zero-lag operation, the extension intelligently adapts its theme (light/dark) to match any website design.

Features

Smart Text Actions

• Instant Search: Select any text and search Google, DuckDuckGo, Bing, or your preferred engine
• Quick Copy: One-click copy to clipboard with intelligent fallback handling
• URL Detection: Automatically detects links and offers to visit them directly
• Unit Conversion: Real-time conversion of weights, temperatures, speeds, distances, and more
• Currency & Crypto: Live exchange rates for 100+ currencies and major cryptocurrencies, including large amounts (e.g. 2351.06 EUR)
• Time Zone Conversion: Convert times using abbreviations (PST, CET, GMT) or full zone names (Pacific Time, Eastern Standard Time, Central European Time) to your local time instantly

Performance Optimized

• Zero-Lag Operation: Instant popup response with no delays
• Memory Efficient: Runs smoothly without slowing down your browser
• Smart Caching: Conversions work instantly even when offline
• Fast Rendering: Popup appears immediately when you select text

Intelligent Design

• Adaptive Theming: Automatically switches between light/dark mode based on page background
• Smart Positioning: Popup appears above/below selection with directional arrow
• Viewport Aware: Always stays within screen boundaries
• Smooth Animations: Elegant fade transitions and micro-interactions

Privacy & Security

• Local Processing: All conversions happen on your device - no data sent to external servers
• Minimal Permissions: Only requests clipboard write and storage access
• Secure Links: All external links open safely
• No Tracking: No analytics, telemetry, or data collection

Supported Conversions

The extension supports a wide range of unit and currency conversions. Simply select the text (e.g., 10 lbs, 2351.06 EUR, or 0.5 BTC) to see the result.

General Units

Category	Example From	To
Weight	10 lb, 5 kg, 8 oz, 500 g	kg, lb, g, oz
Temperature	68 °F, 20 °C	°C, °F
Speed	60 mph, 100 km/h, 30 mpg, 8 l/100km	km/h, mph, l/100km, mpg
Volume	5 gal, 20 l, 2 qt, 12 fl, 250 ml	l, gal, l, ml, fl
Distance	10 mi, 15 km, 50 yd, 100 m, 10 ft, 10 nmi	km, mi, m, yd, m, km
Power	150 kW, 200 hp	hp, kW
Torque	150 lb ft, 200 Nm	Nm, lb ft

Cooking Measurements

Example From	To
1.5 cup, 2 tbsp, 0.5 tsp, 8 fl oz, 1 pint, 1 quart, 1 gallon	ml

Time Zone Conversion Examples

Example	Description	Output Example
5 PM PST	12-hour US Pacific Time	03:00 (your time)
14:00 EST	24-hour US Eastern Time	21:00 (your time)
11:30 am CET	12-hour Central European Time	12:30 (your time)
23:15 GMT	24-hour Greenwich Mean Time	01:15 (your time)
8:00 UTC	24-hour Coordinated Universal Time	11:00 (your time)
10:00pm PT	12-hour America/Los_Angeles	08:00 (your time)
6 PM Pacific Time	12-hour with full US zone name	04:00 (your time)

Fiat Currency Examples

Example	Description
3,000 yen	Japanese Yen by name
10 dollars	US Dollars by name
1,600,000 TRY	Turkish Lira with thousands comma
569,00€	Euro with comma decimal
569.00€	Euro with dot decimal
$1,234.56	US Dollar with comma thousands
1.234,56 USD	US Dollar with dot thousands, comma decimal
£2,000	British Pound with thousands comma
100 BGN	Bulgarian Lev
¥10,000	Japanese Yen
₹5,00,000	Indian Rupee (lakh format)
€5.00,000	Euro with comma and dot
10 USD	US Dollar plain
20 EUR	Euro plain
2351.06 EUR	Euro with a large whole-number part
50 GBP	British Pound plain

Cryptocurrencies

All cryptocurrency conversions are fetched from the CoinGecko API and converted to USD. Just select the amount and symbol (e.g., 0.5 BTC).

Example	Name	Example	Name
1 BTC	Bitcoin	1.5 ETH	Ethereum
50 XRP	Ripple	10 LTC	Litecoin
2.1 BCH	Bitcoin Cash	30.05 DOT	Polkadot
50 LINK	Chainlink	1000 XLM	Stellar
5 BNB	Binance Coin	200 EOS	EOS
0.5 YFI	Yearn.finance	20 BITS	Bitcoin Bits
250 SATS	Bitcoin Satoshis

Note: Bitcoin subunits (BITS, SATS) require API connectivity and will show USD values based on current Bitcoin prices.

Installation

From Chrome web store:

https://chromewebstore.google.com/detail/search-popup/plaekmbmccfiagpfodadmohfmmbkblam

Manual installation:

1. Download the Extension Files:
   • Clone or download and extract the repo.
2. Open Chrome Extensions Page:
   • Go to chrome://extensions in your browser.
3. Enable Developer Mode:
   • Toggle "Developer mode" on (top right).
4. Load Unpacked Extension:
   • Click "Load unpacked" and select the folder containing manifest.json.
5. Done!
   • The extension is now active and ready to use.

Works on all Chromium-based browsers (Chrome, Vivaldi, Edge, Brave, etc.).

Configuration

Right-click the extension icon and select "Options" to configure:

• Preferred currency for conversions
• Preferred cryptocurrency target currency
• Default search engine (Google, DuckDuckGo, Bing, and more)

Permissions

• clipboardWrite: Copy text to clipboard
• storage: Save user preferences
• <all_urls>: Work on all websites

Browser Support

• Chrome (and all Chromium-based browsers: Edge, Brave, Vivaldi, Opera)
• Firefox (via Firefox Add-ons)
• Manifest Version: 3 (latest browser extension standard)

Contributing

Issues and pull requests are welcome on GitHub.

License

GNU General Public License v3 - see LICENSE file for details

Support

Report issues or request features on the GitHub repository.

Developed and tested on

• Vivaldi Browser

Other Chromium browsers should work as well.

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Portions of this app were created using various AI tools!