You’re already spending money online. The only question is whether you’re paying more than you need to.
Most people are. They checkout without checking for coupon codes. They miss cashback offers sitting right there on the retailer’s site. They pay full price for products that are 30% cheaper at a different store — if only they’d known.
The fix takes about five minutes.
Chrome extensions run quietly in your browser and work for you every time you shop — applying coupons, comparing prices, earning cashback, and alerting you to price drops. All without changing how you shop or adding a single step to your checkout process.
But not all shopping extensions are created equal. Some find working coupons consistently. Others waste your time with expired codes and earn you pennies in “rewards” you’ll never actually redeem. A few are borderline shady with your data.
I’ve installed, tested, and compared the most popular money-saving Chrome extensions to separate what genuinely saves money from what just clutters your browser. Here’s which ones deserve space — and which ones you can skip entirely.
Before We Get Into the Extensions
Saving a few dollars per purchase is smart. Nobody should leave free money on the table. But if you’re reading this because you want to genuinely change your financial situation, not just shave $3 off an Amazon order — there’s a bigger opportunity worth knowing about.
I build simple two-page websites that show up in Google for local service businesses. Each site generates $500 to $1,500 per month in recurring revenue. And makes me up to $47,000 a month across all my sites.
Go here to see the exact system I use
Now — the extensions.
How Money-Saving Chrome Extensions Actually Work
Before diving into rankings, it helps to understand the three main ways these extensions save you money.
Automatic coupon application. When you reach checkout, the extension searches its database of promo codes and tests them against your cart, one by one, until it finds one that works. This happens in seconds and replaces the old method of opening a new tab, searching “store name coupon code,” and trying expired codes manually.
Cashback rewards. Some extensions partner with retailers to earn a commission when you make a purchase. They pass a portion of that commission back to you — typically 1% to 15% of the purchase price. This is real money, not just a gimmick, because the retailer is paying the extension to send them customers.
Price comparison and tracking. These extensions monitor the same product across multiple retailers and show you where it’s cheapest right now. Some also track price history, so you know whether today’s “deal” is actually a good price or just the same price rebranded with a fancy sale banner.
The best strategy combines all three categories. Stack one coupon extension, one cashback extension, and one price-tracking extension, and you’re covered from every angle.
The 12 Best Money-Saving Chrome Extensions (Ranked)
1. Capital One Shopping — Best Overall
Formerly Wikibuy, Capital One Shopping does three things well: it automatically finds and applies coupon codes at checkout, compares prices across retailers for whatever product you’re viewing, and earns you “Shopping Credits” that you can redeem for gift cards.
You don’t need a Capital One credit card. The extension is completely free and works independently of any banking relationship.
How it works in practice. You shop normally. When you reach checkout, Capital One Shopping automatically searches for available promo codes, tests them against your cart, and applies the one that saves you the most. On product pages, a notification pops up if the same item is available cheaper at another retailer. In the background, it accumulates credits you can redeem for gift cards at Amazon, Walmart, and other stores.
What I found. Capital One Shopping found working coupon codes on roughly 40% of purchases across major retailers including Target, Best Buy, and Macy’s. The price comparison feature caught lower prices at competing retailers about a quarter of the time. Neither number is 100%, but the combined effect over months of shopping adds up significantly.
Where it’s strongest. Large national retailers with active promo cycles — department stores, electronics retailers, and major online shops. It also catches price differences well on household products and electronics where the same SKU is sold across multiple stores.
Annual savings potential. $50 to $300 depending on shopping volume and store selection. Heavy online shoppers who buy across many retailers see the most benefit.
Why it’s #1. No single extension combines automatic coupons, real-time cross-retailer price comparison, and a working rewards programme as effectively. If you’re installing only one extension, this is the one.
2. Rakuten — Best for Cashback
Rakuten (formerly Ebates) is the largest and most established cashback platform. When you visit a participating store, the extension activates and earns you 1% to 15% cashback — paid as real cash to your PayPal or as a paper cheque, not points or credits.
How it works in practice. Visit a partner store — Rakuten works with thousands including Target, Walmart, Nike, Macy’s, Kohl’s, Booking.com, Sephora, and Home Depot — and a small notification appears offering to activate cashback. Click it, shop normally, and the cashback accrues in your Rakuten account. Payouts happen quarterly. It’s always a nice surprise when a cheque or PayPal deposit lands for purchases you were going to make anyway.
Rakuten also tests and applies coupon codes at checkout, though this feature is less comprehensive than Capital One Shopping’s coupon engine.
Where it’s strongest. Travel bookings (hotels and flights through Rakuten’s partners can generate substantial cashback), fashion and apparel, department stores, and electronics. The cashback percentages fluctuate and often spike during holiday sales events — Black Friday and Cyber Monday cashback rates can double or triple.
The key advantage. Real cash payouts. Most cashback extensions pay in points, credits, or store-specific gift cards. Rakuten puts actual money in your PayPal account four times a year. Over a year of regular shopping, that compounds into real savings.
Annual savings potential. $50 to $500+. Travel purchases and large electronics orders generate the biggest individual cashback amounts.
3. Honey (PayPal Honey)
Honey was the extension that popularised automatic coupon finding, and the core functionality still works well. It tests every available coupon code at checkout and applies the one that saves you the most.
How it works in practice. When you reach a checkout page, Honey’s “Apply Coupons” button appears. Click it, and Honey tests every available code in its database against your cart, showing you how much each code saves and automatically applying the winner. The whole process takes 10 to 30 seconds.
Additional features. Honey maintains a price history tracker for Amazon products, showing you whether the current price is genuinely low or inflated with a misleading “sale” tag. It also runs Honey Gold, a rewards programme where you earn points redeemable for gift cards at popular retailers.
The elephant in the room. In early 2025, a prominent YouTube investigation raised concerns about Honey’s affiliate commission practices — specifically, that the extension was replacing existing affiliate tracking cookies with Honey’s own during sessions where Honey didn’t actually find a working coupon. This doesn’t affect your savings as a consumer (you still get the same coupons), but it’s worth understanding how Honey monetises your shopping activity. PayPal, which owns Honey, made adjustments following the controversy.
Where it’s strongest. Smaller and mid-size online retailers where Honey maintains a particularly deep coupon database. Also strong for finding working codes at restaurant delivery services and subscription boxes.
Annual savings potential. $30 to $200.
4. The Camelizer / CamelCamelCamel — Best for Amazon Shoppers
If you buy anything from Amazon with any regularity, The Camelizer is non-negotiable. This extension adds a complete price history graph directly onto every Amazon product page, showing exactly how the price has moved over days, weeks, months, and years.
Why this matters more than you’d think. Amazon prices change constantly — often multiple times per week for popular products. That exciting “50% off” badge might actually mean the “original” price was artificially inflated to make the current price look like a steal. The Camelizer strips away the marketing and shows you the reality: whether today’s price is genuinely low, average, or actually higher than it was last month.
The price alert feature. You can set a target price for any Amazon product, and CamelCamelCamel will email you the moment the price hits that target. This is invaluable for big-ticket items — furniture, electronics, appliances — where waiting a few weeks for a price dip can easily save $50 to $200.
Where it’s strongest. Electronics, household goods, kitchen appliances, and anything on Amazon where prices fluctuate seasonally. It’s particularly useful during Prime Day and holiday shopping periods when Amazon runs hundreds of simultaneous “deals” of wildly varying quality.
Annual savings potential. Difficult to quantify precisely because the value is in preventing overpayment rather than applying direct discounts. For regular Amazon shoppers, the prevented-overspend can easily run $200 to $500 per year.
5. Ibotta Browser Extension
Most people know Ibotta as a grocery cashback app, but its Chrome extension expands that functionality to online shopping across major retailers including Walmart, Lowe’s, Best Buy, Home Depot, and Booking.com.
How it works. Like Rakuten, Ibotta activates cashback offers when you visit partner stores. It also applies coupon codes at checkout. If you already use the Ibotta mobile app for grocery cashback, earnings from the browser extension flow into the same account.
Where it’s strongest. Grocery delivery and pickup orders — particularly Walmart Grocery and similar services. Ibotta’s grocery-first heritage means it catches cashback opportunities at food retailers that other extensions miss entirely. If you order groceries online, Ibotta is the extension to have installed.
Stacking with Ibotta mobile. The browser extension earns you cashback on online purchases. The mobile app earns cashback on in-store purchases via receipt scanning. Together, they create a consistent cashback stream across both online and physical shopping.
Annual savings potential. $30 to $150 from the browser extension. Combined with the mobile grocery app, total annual Ibotta savings can reach $200 to $500.
6. CouponCabin
CouponCabin’s extension finds promo codes, activates cashback offers, and surfaces exclusive deals at hundreds of retailers. The interface is clean, the payout structure is transparent, and the deal alerts are personalised based on your shopping patterns.
Where it’s strongest. Department stores and large home improvement retailers — Best Buy, Home Depot, Ulta, Nordstrom, and similar. CouponCabin’s cashback rates are competitive with Rakuten at many stores, and it occasionally offers exclusive deals that other platforms don’t have.
Annual savings potential. $20 to $150 in combined coupon and cashback savings.
7. RetailMeNot Deal Finder
RetailMeNot’s extension finds and tests promo codes and stacks cashback offers at over 20,000 stores. As one of the oldest coupon platforms online, it maintains a massive database of verified codes updated daily.
What makes it worth installing. RetailMeNot allows you to earn cashback and apply a coupon code in the same transaction at many retailers — a feature not all extensions support cleanly. The extension is also lightweight and doesn’t noticeably slow down browsing.
Annual savings potential. $20 to $100.
8. CNET Shopping
CNET Shopping (formerly known as ShopCentrik) alerts you to lower prices at other retailers while you’re browsing a product page. The extension also tests coupon codes at checkout and works across more than just traditional retail — it finds deals on flights, hotels, and rental cars too.
Where it’s strongest. Travel and electronics, where the same product or service varies significantly in price across competing sites. If you book travel online regularly, the cross-platform price alerts can catch meaningful savings.
Browser availability. Chrome, Firefox, Edge, and Safari.
9. Cently
Formerly Coupons at Checkout, Cently does one thing and does it well: finding and applying coupon codes. No cashback programme, no price tracking, no rewards system — just coupons. If you want a lightweight, focused extension without the extra features, Cently delivers.
Why some users prefer it. Cently uses fewer system resources and tracks less browsing data than full-featured extensions. It’s the choice for privacy-conscious shoppers who want coupon functionality without the broader data collection that larger platforms engage in.
Annual savings potential. $15 to $75.
10. PriceBlink
PriceBlink shows real-time price comparisons across retailers while you’re viewing a product. A bar appears at the top of your browser showing the exact same product at other stores — often at meaningfully lower prices.
Where it’s strongest. Electronics, books, and products sold by multiple competing retailers. PriceBlink excels at catching price differences on identical items across Amazon, Walmart, Best Buy, Target, and specialty retailers.
Annual savings potential. $30 to $150.
11. Acorns Earn
Acorns Earn doesn’t find coupons or cashback in the traditional sense. Instead, it invests a bonus into your Acorns micro-investing account when you shop at participating brands — over 15,000 of them, including Sephora, Nike, Walmart, Apple, and more. The brands fund the investment as a customer acquisition reward.
Best for. People already using the Acorns investment app who want to grow their portfolio passively through everyday purchases.
12. Fakespot
Fakespot isn’t a coupon or cashback tool — it’s a review fraud detector. The extension analyses product reviews on Amazon and other retailers and flags products with suspicious review patterns, helping you avoid overpriced junk propped up by fake five-star reviews.
Why it belongs on this list. The cheapest purchase is the one you don’t make on a terrible product. Fakespot prevents you from wasting money on items with artificially inflated ratings, which is a different but equally valid form of “saving money.”
Full Comparison Table
| Extension | Auto-Coupons | Cashback | Price Comparison | Price History | Browser Compatibility | Free? |
|---|---|---|---|---|---|---|
| Capital One Shopping | ✅ | Credits (gift cards) | ✅ | ❌ | Chrome, Firefox, Edge, Safari | ✅ |
| Rakuten | ✅ | ✅ (PayPal/cheque) | ❌ | ❌ | Chrome, Firefox, Edge, Safari | ✅ |
| Honey (PayPal) | ✅ | Honey Gold (gift cards) | ❌ | ✅ (Amazon) | Chrome, Firefox, Edge, Safari | ✅ |
| The Camelizer | ❌ | ❌ | ❌ | ✅ (Amazon) | Chrome, Firefox, Edge | ✅ |
| Ibotta | ✅ | ✅ (PayPal/cash) | ❌ | ❌ | Chrome | ✅ |
| CouponCabin | ✅ | ✅ (cash) | ❌ | ❌ | Chrome | ✅ |
| RetailMeNot | ✅ | ✅ | ❌ | ❌ | Chrome, Firefox | ✅ |
| CNET Shopping | ✅ | ❌ | ✅ | ❌ | Chrome, Firefox, Edge, Safari | ✅ |
| Cently | ✅ | ❌ | ❌ | ❌ | Chrome | ✅ |
| PriceBlink | ✅ | ❌ | ✅ | ❌ | Chrome, Firefox, Safari | ✅ |
| Acorns Earn | ❌ | Investment bonus | ❌ | ❌ | Chrome | ✅ |
| Fakespot | ❌ | ❌ | ❌ | ❌ | Chrome, Firefox, Safari | ✅ |
The Optimal Extension Stack (How to Combine Them)
You don’t need all twelve. The smartest approach is running three to four complementary extensions that cover different savings categories without conflicting.
The Essential Three-Extension Stack
This is the setup I recommend for anyone starting out:
- Capital One Shopping — handles coupons and cross-retailer price comparison
- Rakuten — handles cashback (real cash via PayPal)
- The Camelizer — handles Amazon price history and drop alerts
These three cover the main savings categories — coupons, cashback, and price intelligence — without conflicting. They serve fundamentally different functions, so they don’t step on each other during checkout.
How a Real Purchase Works With the Stack
Let’s say you want to buy a new pair of running shoes. You search on Amazon. The Camelizer shows the current price is $15 above the 90-day average, so you set a price alert and wait. Two weeks later, the price drops to the lowest it’s been in four months. You buy, and Capital One Shopping tests coupon codes at checkout. None found for this particular Amazon item, but Rakuten confirms you’re earning 3% cashback. Total savings: $15 from the price drop plus 3% cashback.
Another scenario: you’re buying from Nike’s website directly. Rakuten activates 6% cashback. Capital One Shopping tests promo codes and finds a working 10% off code. On a $120 purchase, you save $12 from the coupon plus $6.48 in cashback. That’s $18.48 saved in roughly three seconds of effort.
Adding a Fourth Extension
If you shop at Walmart or order groceries online regularly, add Ibotta for grocery-specific cashback that Rakuten often misses.
If you shop across many smaller retailers and want a backup coupon finder, add Honey. Sometimes Honey finds codes that Capital One Shopping doesn’t, especially at niche online stores.
What Not to Stack
Running two coupon extensions simultaneously can occasionally cause conflicts at checkout. If both extensions try to test codes at the same time, they can interfere with each other and both fail. The practical solution: designate a primary coupon extension (Capital One Shopping) and only manually activate your backup (Honey or Cently) if the primary finds nothing.
Cashback extensions can conflict too. If both Rakuten and Ibotta offer cashback at the same store, only one will track the purchase. Activate whichever offers the higher cashback percentage for that specific retailer.
How Much Can You Realistically Save Per Year?
Let’s be honest about the numbers.
Casual online shopper (spending $200 to $500 per month online): Expect to save $100 to $300 per year through stacked extensions. That’s roughly one nice dinner out every month or two, funded by savings you wouldn’t have found manually.
Regular online shopper (spending $500 to $1,500 per month, including some travel): Expect $200 to $700 per year. At this level, cashback alone through Rakuten can produce $100 to $300 annually, particularly if you book hotels or flights through cashback-earning portals.
Heavy online shopper (spending $1,500+ per month, significant travel): Potential savings of $500 to $1,200+ per year. Travel cashback, frequent coupon code hits on larger purchases, and consistent price-comparison savings all compound.
These numbers assume you’re running a three-extension stack consistently. The actual total depends on where you shop (some retailers have more active coupon and cashback programmes than others), what you buy (electronics and fashion carry more price variation than staples), and how frequently you shop online.
The Privacy Trade-Off: What These Extensions See
Every money-saving extension needs access to your browsing data to function. They have to see what you’re buying to offer relevant savings. Here’s what you should know.
What they access. The websites you visit, the products you view, your shopping cart contents, and your checkout behaviour. This is necessary for coupons, cashback, and price comparison to work.
What they do with the data. Most extensions — including Honey, Rakuten, and Capital One Shopping — aggregate anonymised shopping data and use it for market research, trend analysis, and advertising targeting. Their privacy policies disclose this. You’re trading a degree of privacy for savings, and that’s a trade-off worth making consciously.
How to minimise exposure. Only install extensions from the Chrome Web Store with millions of users and regularly updated reviews. Review extension permissions before installing — a shopping extension should need access to web pages and browsing history, not your camera, microphone, or file system. Periodically audit your installed extensions and remove any you don’t actively use.
The security reality. In late 2024 and early 2025, several legitimate Chrome extensions were compromised by attackers who injected malicious code through extension updates. This is a real and ongoing risk. Keep your extensions updated, use extensions from established companies, and be cautious about granting broad permissions.
Extensions to Avoid
Not every money-saving extension is worth installing. Here’s what to watch out for.
Extensions with fewer than 100,000 users. Small extensions are more likely to be abandoned, sold to bad actors, or compromised. Stick with established tools backed by real companies.
Extensions promising unrealistic savings. If an extension claims “save up to 90% on every purchase,” it’s lying. Realistic coupon savings are 5% to 20% on purchases where valid codes exist, and not every purchase will have a code.
Extensions that noticeably slow your browser. If Chrome becomes sluggish after installing a shopping extension, uninstall it immediately. The occasional $3 coupon is not worth degraded performance across every website you visit.
Extensions requesting excessive permissions. A coupon finder doesn’t need clipboard access, download management, or bookmark access. If the permissions list seems disproportionate to the extension’s stated function, find an alternative.
Copycat extensions. Search the Chrome Web Store for “Honey” or “Rakuten” and you’ll find knock-off extensions with similar names designed to trick users into installing them. Always verify you’re downloading the official extension from the real developer.
Frequently Asked Questions
Do money-saving Chrome extensions really work?
Yes. The extensions listed here — Capital One Shopping, Rakuten, Honey, The Camelizer, Ibotta — genuinely find coupon codes, earn cashback, and track prices. They won’t work on every single purchase, but across a year of regular use, the cumulative savings are real and measurable. The typical range is $100 to $700 per year depending on shopping habits.
How much money can I save per year?
For most regular online shoppers, $200 to $500 per year is realistic with a three-extension stack. The biggest savings come from cashback on large purchases (especially travel), coupon codes on retail purchases, and price-drop alerts that prevent overpaying on Amazon.
Do these extensions conflict with each other?
They can. Two coupon extensions testing codes simultaneously can interfere at checkout. The solution is to designate one primary coupon extension and only use a backup manually if the first finds nothing. Cashback extensions don’t conflict as long as you only activate one per purchase.
Are money-saving extensions safe?
The major extensions are used by millions of people and maintained by established companies. They access your shopping data (a privacy trade-off), but they aren’t malware. To stay safe: only install widely-used extensions, review permissions before installing, and periodically audit what’s in your browser.
Can I use these on other browsers?
Most are available for Firefox, Safari, and Microsoft Edge as well. Rakuten, Honey, Capital One Shopping, and Ibotta all support multiple browsers. The Camelizer works on Chrome, Firefox, and Edge.
I use Firefox / Safari / Edge — do I need Chrome specifically?
No. Most of the extensions on this list are available across major browsers. The functionality is largely identical regardless of browser. The article focuses on Chrome because it’s the most popular browser, but the same recommendations apply.
For more ways to save and earn extra money, check out my guides on best reward apps that actually pay, apps that pay you real money, ways to make extra money, and the best side hustles to start.
Save Smarter — Then Earn Smarter
Chrome extensions are the easiest money-saving habit you can build. Five minutes of setup, zero ongoing effort, and genuine savings on purchases you were already going to make. Install Capital One Shopping, Rakuten, and The Camelizer today. That three-extension stack covers coupons, cashback, and price intelligence with minimal overlap and maximum coverage.
But here’s the bigger picture. Saving money optimises what you already earn. Building income creates new money entirely. If you want to go beyond saving a few dollars per purchase and start generating $500 to $1,500 per month in actual recurring revenue, go here to see the exact system I use to build simple income-generating websites.
Save smarter today. Build income tomorrow.
Mark is the founder of MarksInsights and has spent 15+ years testing online business programs and tools. He focuses on honest, experience-based reviews that help people avoid scams and find real, sustainable ways to make money online.