Selling on Amazon in 2026 is more competitive than ever. Margins are tighter, fees have changed, and the sellers who come out ahead are the ones with the right tools behind them, not the ones with the longest list of subscriptions.
Whether you’re just getting started or scaling a high-volume operation, this guide covers the best Amazon seller tools available right now: the all-in-one solution that covers everything from sourcing to profit tracking, a handful of genuinely useful free tools, and a few specialized picks for specific needs.
Let’s get into it.
Best overall: Seller 365, 10 tools in one subscription
If there’s one tool on this list worth your full attention, it’s Seller 365. For $69/month, you get 10 integrated apps that cover every critical part of the Amazon selling workflow: sourcing, inventory, repricing, reviews, and profit tracking. That’s the kind of all-in-one value that used to cost $300+ per month when buying tools separately.
What’s included
Sourcing
- Tactical Arbitrage: Scans 1,500+ online stores to find profitable products for resale, with automated searches and real-time ROI filtering
- ScoutIQ: Built for book flippers, with sales rank data and profitability tracking for used and new books
- Scoutify: A mobile retail arbitrage app for scanning in-store products and checking Amazon prices on the go
- ScoutX: Amazon product research built for deeper analysis of competition, BSR trends, and sourcing opportunities
Inventory & fulfillment
- InventoryLab: Manage FBA and FBM shipments, create listings, and track your full inventory with cost-basis data and restock alerts
Winning the sale
- SmartRepricer: AI-powered repricing that automatically adjusts your prices across 22 Amazon marketplaces to keep you competitive and protect the Buy Box
- FeedbackWhiz Emails: Automates review and feedback requests so you can build your reputation without the manual follow-up
- FeedbackWhiz Alerts: 24/7 monitoring across all your listings and accounts, so you’re always the first to know when something changes
Profit management
- FeedbackWhiz Profits: ASIN-level profit analytics with multichannel reporting across Amazon and Walmart
- InventoryLab Accounting: Tax-ready bookkeeping that auto-syncs sales, tracks all Amazon fees, and monitors reimbursements
Pricing
- Seller 365: $69/month (1 user), 14-day free trial available
- Seller 365 Teams: $79/month (up to 10 users)
- Seller 365 Pro: $199/month (10 users + free reimbursements for sellers under $1M in annual sales)
Why it stands out
The value proposition is simple: a typical mid-volume Amazon seller cobbling together the same capabilities from individual tools would spend $300+ per month. Seller 365 delivers all of it for $69. That’s roughly $2,988 in annual savings, money that’s better invested in inventory or advertising.
Beyond the cost savings, having all your tools share the same platform means faster onboarding, no juggling multiple logins, and a support team that understands your entire workflow, not just one piece of it.
Start your free trial at threecolts.com/seller-365.
Best Free Amazon Seller Tools in 2026
Not every tool needs a subscription. These free options give sellers real data without any upfront cost, and they pair well with a more complete solution like Seller 365.
1. Keepa — Price & Sales Rank History
- Best for: Sellers who want to understand historical pricing trends before sourcing a product
- Price: Free (limited); paid plan unlocks sales rank history and export
Keepa is one of the most widely used free tools in the Amazon seller ecosystem. Its browser extension overlays price history charts directly on Amazon product pages, covering over 5.8 billion products across 11 marketplaces. You can see price trends, spot seasonal dips, and track competitor offer counts, all at a glance. For arbitrage sellers in particular, checking Keepa before a sourcing decision is second nature.
2. CamelCamelCamel — Price Drop Tracking & Alerts
- Best for: Sellers and shoppers who want simple price drop notifications
- Price: Completely free
CamelCamelCamel is the go-to free option for price tracking. Paste an Amazon product URL, set a target price, and get email alerts when it drops. The interface is clean and simple, with no learning curve required. It’s less data-rich than Keepa, but for quick benchmarking on how a product has historically been priced, it gets the job done. Many sellers use both: CamelCamelCamel for alerts, Keepa for deeper analysis.
3. Amazon Seller Central — Your Built-In Dashboard
- Best for: Every Amazon seller, it’s the foundation of your operation
- Price: Free with your Amazon seller account
Seller Central is Amazon’s own management hub, and it’s more capable than many sellers give it credit for. You get built-in sales reports, inventory dashboards, ad campaign management, customer messaging, and the FBA Revenue Calculator to estimate fees before you commit to a product. Brand-registered sellers also unlock Brand Analytics, which includes top search terms, demographic data, and market basket insights. It won’t replace a dedicated profit tracking or repricing tool, but it’s the starting point for everything.
4. Amazon FBA Revenue Calculator — Profitability Check Before You Buy
- Best for: Quick fee and margin estimates on any product
- Price: Free
Before you source anything, you need to know your margins. Amazon’s official FBA Revenue Calculator lets you plug in a product’s ASIN, your cost, and shipping estimates to get a clear breakdown of FBA fees, referral fees, and expected profit. It’s not a substitute for a full-featured accounting tool, but for a quick gut check on whether a product is worth pursuing, it’s the fastest free option available.
Other Useful Amazon Seller Tools Worth Knowing
Depending on your business model, you may also find value in these specialized tools. They each solve a specific problem for sellers with niche needs.
Google Keyword Planner — Search Demand Research
Technically a Google Ads tool, but useful for Amazon sellers doing early-stage product and market research. Google Keyword Planner shows search volume trends and seasonality data that can help validate product ideas before you invest. It won’t give you Amazon-specific data, but broad consumer demand patterns translate across platforms.
DS Amazon Quick View — Fast Competitor Scanning
A lightweight Chrome extension that shows BSR, seller count, ratings, and other key data directly on Amazon search results pages, without clicking into every listing. It’s a time-saver for sellers who do a lot of manual browsing and want quick-glance data while they work.
Jungle Scout Chrome Extension (Free Features) — Sales Estimation on the Go
Jungle Scout’s free extension features surface estimated monthly sales and revenue data while you browse Amazon listings. It’s useful for a quick sanity check on demand before diving into deeper research with a more comprehensive tool. The paid version offers more, but the free overlay alone can save time during initial product vetting.
How to Choose the Right Amazon Seller Tools for Your Business
The tools you need depend on where you are in your selling journey, but most sellers eventually realize they need the same core capabilities: sourcing, inventory management, repricing, feedback management, and profit tracking.
The question isn’t whether you need these functions. It’s whether you want to pay for each one separately, and deal with separate logins, separate billing, and separate support teams, or whether you want everything in one place.
Here’s a simple framework:
- If you’re just starting out: Use the free tools (Keepa, CamelCamelCamel, Amazon Seller Central) to get your bearings. When you’re ready to scale, move to an all-in-one solution.
- If you’re actively sourcing and selling: Seller 365 is the most cost-effective complete stack available. At $69/month for 10 tools, it pays for itself quickly.
- If you have a specific gap to fill: The free and supplementary tools listed above can plug individual holes without a major investment.
Final Thoughts
Amazon sellers in 2026 have more tool options than ever, which also means more chances to overspend on a fragmented stack that slows you down. The sellers who move fastest are the ones who keep their workflows simple and their costs lean.
Start with the free tools to build your foundation. Then, when you’re ready to run a real operation, consolidate into something that covers the full picture.
Seller 365 offers a 14-day free trial, no commitment required. You can explore all 10 tools and see exactly what an all-in-one stack looks like in practice. Start at threecolts.com/seller-365.
