Top 5 Browser Extensions to Never Miss a Deal

Online shopping has become the default method for many people to buy everything from groceries and electronics to clothing and gifts. With just a few clicks, you can browse thousands of products, compare prices, and get items delivered to your doorstep. But with so many deals and promotions scattered across different platforms, it’s easy to miss out on the best discounts.

That’s where browser extensions come in. These small, powerful tools sit in your browser and automatically look for discounts, coupon codes, price drops, and cashback offers as you shop. Whether you’re on Amazon, Walmart, eBay, or a niche boutique, the right browser extension can save you money without requiring you to do extra work.

Here’s a detailed look at five of the best browser extensions that help you save on almost every online purchase.

1. Honey

Honey is one of the most well-known shopping extensions, and for good reason. It automatically searches for and applies coupon codes at checkout across thousands of retailers.

Key features:

• Applies the best working coupon automatically during checkout
• Offers a rewards program called Honey Gold, which can be redeemed for gift cards
• Shows price history for Amazon listings
• Works on over 30,000 online stores

Pros:

• Set-and-forget functionality
• Interface is clean and unobtrusive
• Often finds codes that aren't available on public deal forums

Cons:

• Doesn’t always find the absolute best price or deal
• Amazon price history isn’t as detailed as other tools like CamelCamelCamel

Best for: People who do a lot of shopping on a wide variety of websites and want one tool to handle all their coupons.

2. Rakuten (formerly Ebates)

Rakuten is primarily a cashback platform, but its browser extension makes it easy to activate cashback offers while you shop. It’s more focused on long-term savings through rebates rather than instant coupon codes.

Key features:

• One-click cashback activation at checkout
• Notifies you if cashback is available on the site you're visiting
• Provides a list of current deals and promotions on participating stores

Pros:

• Offers generous cashback percentages, especially during promotions
• Simple to use — a single click is all it takes
• Sends quarterly payouts via PayPal or check

Cons:

• Doesn’t apply coupon codes
• Some cashback offers are delayed or excluded based on payment methods or cart behavior

Best for: Shoppers who frequently buy from large retailers and want consistent, passive rewards.

3. Capital One Shopping

Previously known as Wikibuy, Capital One Shopping is another strong contender in the savings-extension world. It compares prices in real time and helps you find lower prices across other sellers.

Key features:

• Automatic coupon code testing
• Real-time price comparisons for Amazon and other major retailers
• Offers price drop alerts and local deals
• Has a rewards program for future gift card redemptions

Pros:

• Excellent for price comparisons, especially on Amazon
• Highlights third-party sellers offering better prices
• Provides historical pricing and shipping comparisons

Cons:

• You’ll need to create an account for full functionality
• Interface can occasionally feel cluttered

Best for: Amazon regulars who want to avoid overpaying by checking hidden third-party deals.

4. Keepa

While not as flashy or well-known outside of deal forums, Keepa is a must-have for serious Amazon shoppers. It provides comprehensive price history charts for nearly every product on Amazon.

Key features:

• Tracks price history over multiple years
• Sets up price drop alerts
• Shows price changes from Amazon, third-party sellers, and used product listings

Pros:

• Highly detailed graphs that show real-time price fluctuations
• Alerts can be sent via email or push notification
• Tracks Lightning Deals and upcoming sales

Cons:

• Limited to Amazon and doesn’t work on other retail sites
• Can be overwhelming for casual users unfamiliar with data-heavy tools

Best for: Shoppers who wait for the right time to buy and want detailed data to make informed decisions.

5. Cently (Coupons at Checkout)

Cently is a lightweight coupon extension that does one thing well: it finds and applies promo codes at checkout for over 15,000 online stores.

Key features:

• Simple interface that pops up automatically at checkout
• Works on major retail websites
• Occasionally offers cashback through partner links

Pros:

• Fast and doesn’t slow down your browser
• Great alternative to Honey if you want a minimalist option
• Finds working coupons for smaller niche retailers

Cons:

• Lacks price tracking and advanced features
• Limited cashback options compared to Rakuten or Capital One Shopping

Best for: Users who want a no-frills coupon tool with fast results.

Tips for Using Deal Extensions Effectively

While these extensions make saving easier, here are a few tips to help you get the most out of them:

• Don’t use too many at once. Running multiple deal extensions can slow down your browser or cause conflicts during checkout.
• Compare results. Sometimes, one extension finds a better code than another. Occasionally test different ones on the same store.
• Turn off extensions on banking or secure sites. To avoid performance issues or privacy concerns, disable extensions on sensitive pages.
• Sign up for price alerts. Especially useful for big-ticket items you’re not ready to purchase yet.
• Stack with credit card rewards. Combine cashback from Rakuten with your card’s rewards program for double savings.

Are They Safe to Use?

Most reputable browser extensions, like the ones mentioned above, are generally safe. However, always:

• Download directly from the Chrome Web Store or Firefox Add-ons directory
• Read privacy policies and reviews
• Avoid entering sensitive information through the extension pop-ups

These tools typically monetize by collecting anonymized shopping data, but you should still review what permissions they request before installation.