Ecommerce Tech Stack: The Best Tools to Run an Online Store
Build the technology stack to run and scale an online store.
An online store needs a reliable commerce platform, conversion-focused checkout, inventory and shipping automation, customer support and marketing that drives repeat orders. Most successful stores start on a hosted platform and add specialist apps only where they move revenue or cut cost.
Reviewed by Saaskart ResearchUpdated How we pick
- 5
- Stack layers
- 19
- Categories covered
- 1,183+
- Products to compare
- 5
- Top picks with free plans
Stack blueprint
Live marketplace dataQuick answer
What is the best tech stack for online stores?
The best tech stack for online stores covers 5 layers: store & checkout, orders & fulfillment, marketing, customer care and finance & data. Start with Shopify for e-commerce platform, Stripe for payment gateways, ShipStation for shipping software, Klaviyo for email marketing and Gorgias for customer support, then add growth and scale tools as volume increases.
Key takeaways
- 5 of the top picks in this stack offer a free plan, so you can start for little or no cost.
- Run the stack by conversion rate: share of sessions that place an order.
- Connect store to shipping first. Orders create labels and tracking updates automatically.
- Avoid the most common mistake: choosing a platform that cannot handle your catalog size or B2B needs later.
Who it's for
Who needs a tech stack for online stores?
New online stores
Get a store, payments and shipping live quickly and cheaply.
Growing retailers
Automate fulfillment and support as order volume climbs.
Store managers
One view of sales, stock and marketing performance.
The problems it solves
Problems the right software solves for online stores.
Conversion
Most visitors leave without buying, so speed, search and checkout matter.
Operational load
Manual order handling and support do not scale past a few hundred orders a day.
Repeat business
Email and SMS flows are the cheapest source of incremental revenue.
Stock accuracy
Overselling and stockouts damage reviews and marketplace standing.
Stack blueprint
E-commerce tech stack: every layer and category.
Each layer maps to real marketplace categories. Open any category to compare products, reviews and pricing.
Store & Checkout
The platform, payments and on-site experience that turn visitors into buyers.
Orders & Fulfillment
Inventory, shipping and returns that run without manual work.
Marketing
Channels that bring traffic and drive repeat purchase.
Customer Care
Support and reviews that protect reputation.
Finance & Data
Accounting, sales tax and reporting.
Top picks by category
Best software for online stores, by category.
Market leaders researched for each category, with what to look for before you buy. Pick a layer to explore.
Store & Checkout
The platform, payments and on-site experience that turn visitors into buyers.
Software
Best E-commerce Platform for online stores
What to look for
- Define your business and products
- Choose hosted vs self-hosted vs headless
- Evaluate checkout and payments
All-in-one commerce platform to start and grow an online store
Open SaaS ecommerce platform for growing and enterprise stores
Open-source ecommerce plugin for WordPress
Software
Best Payment Gateways for online stores
What to look for
- Assess your payment needs
- Evaluate security and compliance
- Compare fees and pricing
Payments infrastructure and financial APIs for the internet
Full-stack payments and business banking platform
Global payments platform for enterprises
Software
Best Conversion Optimization for online stores
What to look for
- Primary need
- Traffic & significance
- Ease & implementation
A/B testing and experimentation platform for conversion optimization
See how users behave, heatmaps, recordings, surveys, and feedback.
Experimentation and digital experience platform for enterprises.
Software
Best Enterprise Search for online stores
What to look for
- Connector coverage
- Permission handling
- Search quality & AI
Work AI and enterprise search across your company knowledge
AI-powered search, recommendations, and personalization
AI search and recommendations API with a free tier and usage pricing
Orders & Fulfillment
Inventory, shipping and returns that run without manual work.
Software
Best Order Management for online stores
What to look for
- Map your channels and volume
- Assess inventory and routing needs
- Check channel and carrier integrations
Multichannel inventory and order management
Retail operations platform for omnichannel brands
All-in-one commerce platform to start and grow an online store
Software
Best Inventory Management for online stores
What to look for
- Define your inventory needs
- Evaluate real-time accuracy
- Assess multi-location and multi-channel sync
Connected inventory management for product sellers.
Cloud manufacturing and inventory software for makers.
Inventory and order management in the Zoho suite
Software
Best Shipping Software for online stores
What to look for
- Assess your shipping volume and needs
- Check carrier coverage and rates
- Evaluate automation
Multi-carrier ecommerce shipping software
Multi-carrier shipping software and API for ecommerce
The shipping API for modern logistics.
Software
Best Returns Management for online stores
What to look for
- Assess your return volume and category
- Evaluate the customer experience
- Prioritize exchanges and revenue retention
Returns and exchanges platform for Shopify brands
Returns automation and branded returns
Post-purchase tracking, returns, and engagement
Marketing
Channels that bring traffic and drive repeat purchase.
Software
Best Email Marketing for online stores
What to look for
- Primary use
- Deliverability
- Automation
Email, SMS, and marketing automation built for ecommerce.
Email marketing and automation platform for growing businesses
Email, SMS, and CRM marketing on one affordable platform.
Software
Best SMS Marketing for online stores
What to look for
- Primary use
- Compliance
- Deliverability
AI-powered SMS and email marketing
SMS marketing for Shopify ecommerce brands
Email, SMS, and marketing automation built for ecommerce.
Software
Best SEO Software for online stores
What to look for
- Scope of need
- Data quality
- Workflow fit
SEO and AI visibility suite for keywords, audits and tracking
All-in-one SEO toolset for keywords, backlinks, and site audits.
Desktop website crawler for technical SEO
Software
Best Advertising Technology for online stores
What to look for
- Channels & goals
- Targeting & data
- Optimization
AI-powered Meta advertising
Growth marketing for ecommerce
PPC management and optimization
Customer Care
Support and reviews that protect reputation.
Software
Best Customer Support for online stores
What to look for
- Support scope
- Channels
- Automation & routing
E-commerce helpdesk with an AI agent that resolves tickets and sells
Customer service and engagement platform with omnichannel ticketing
Simple, human customer support with shared inbox and help center
Software
Best Live Chat Software for online stores
What to look for
- Primary goal
- Bots & automation
- Agent experience
Live chat and AI chatbots for small businesses and ecommerce.
E-commerce helpdesk with an AI agent that resolves tickets and sells
AI-first customer service platform with the Fin AI agent
Software
Best Customer Feedback for online stores
What to look for
- Define your feedback goals
- Collection channels
- Analytics depth
Reviews and loyalty for ecommerce brands
Customer reviews, ratings, and UGC for e-commerce
Open consumer review platform
Finance & Data
Accounting, sales tax and reporting.
Software
Best Accounting Software for online stores
What to look for
- Match business size & complexity
- Core feature fit
- Bank feeds & automation
Accounting and financial management software for small businesses
Cloud accounting software with unlimited users for small businesses
Online accounting software for growing businesses.
Software
Best Tax Software for online stores
What to look for
- Match your tax situation
- Complexity coverage
- Integration & import
Sales tax compliance automation
Enterprise tax calculation and compliance
Sales tax compliance for SaaS
Software
Best Marketing Analytics for online stores
What to look for
- Questions to answer
- Data integration
- Attribution
Free web and app analytics from Google with enterprise tier
Ecommerce analytics and attribution for DTC brands.
Marketing intelligence and multi-touch attribution.
Software
Best Business Intelligence for online stores
What to look for
- Define your BI needs
- Data connectivity
- Self-service & ease of use
Ecommerce analytics and attribution for DTC brands.
Business intelligence and data visualization in the Microsoft ecosystem
Governed BI and data platform on Google Cloud with a semantic layer
What to buy first
What software should online stores buy first?
Start with the essentials, then add layers as volume and complexity grow. Each step shows our top pick.
Starter
Launch the essentials
- E-commerce Platform
- Payment Gateways
- Shipping Software
- Email Marketing
- Customer Support
- Accounting Software
Growth
Automate and retain
- Inventory Management
- Returns Management
- SMS Marketing
- SEO Software
- Live Chat Software
- Customer Feedback
- Marketing Analytics
Scale
Optimize and expand
- Order Management
- Conversion Optimization
- Enterprise Search
- Advertising Technology
- Tax Software
- Business Intelligence
Indicative entry prices use each top pick's published starting price; billing periods and tiers vary by vendor.
AI agents
Best AI agents for online stores.
The agent categories that create the most leverage for e-commerce teams, with leading options in each.
E-commerce AI
AI sales and support agents for ecommerce stores
AI quizzes and personalization
Tidio's AI support agent that answers from your knowledge base
Customer Support AI
AI support agent priced at $0.99 per resolved outcome
AI customer service agents that complete tasks in your business systems
Enterprise conversational AI agents for customer experience, from Bret Taylor
Marketing AI
AI marketing platform with agents, brand voice and content pipelines
HubSpot's AI layer: Copilot, agents and data enrichment across the CRM
GTM AI platform for marketing
How it connects
How to integrate a tech stack for online stores.
A stack is only as strong as the data flowing between its tools. Check these connections before you buy.
Orders create labels and tracking updates automatically.
Customer and order events power automated flows.
Stock levels sync across every sales channel.
Sales, refunds and fees post to the books daily.
Operator playbook
KPIs and mistakes to avoid for online stores.
KPIs to run the business by
Conversion rate
Share of sessions that place an order.
Average order value
Basket size, lifted by bundles and upsells.
Repeat customer rate
Indicator of loyalty and retention health.
Fulfillment time
Speed from order to dispatch.
Support first response time
How quickly customers get help.
Common mistakes to avoid
- Choosing a platform that cannot handle your catalog size or B2B needs later.
- Adding apps without auditing site speed.
- No abandoned cart or post-purchase automation.
- Manual inventory updates across channels.
A 90-day rollout plan
Days 0 to 30
Foundation
- Select your commerce platform
- Set up payments and checkout
- Connect inventory and shipping
Days 31 to 60
Grow
- Add support and CRM
- Launch marketing channels
- Wire finance and reporting
Days 61 to 90
Optimize
- Introduce AI agents
Implementation partners
Implementation partners for online stores.
Vetted service providers who implement, integrate and manage these systems.
Build your stack
Get a recommendation for your business.
Tell us about your team, budget and current tools. We'll suggest the right software, AI agents and partners for each layer.
- Tailored to your size and stage
- Software, AI agents and services together
- No obligation, free to request
Frequently asked questions
Frequently asked questions about tech stacks for online stores
What software do you need to run an online store?
You need an ecommerce platform, a payment gateway, shipping software, email marketing, a customer support tool and accounting. As you grow, add inventory management, returns, reviews, SMS and analytics.
Which ecommerce platform is best?
Shopify is the most popular hosted option for most stores, BigCommerce suits larger catalogs and B2B features, and WooCommerce suits WordPress sites that want full control. Compare them on cost, apps, scalability and checkout performance.
How do I choose ecommerce tools that work together?
Start from your platform's app ecosystem and pick tools with native integrations for orders, customers and inventory. Avoid installing overlapping apps, and check site speed after each addition.
What is the E-commerce Stack?
An online store needs a reliable commerce platform, conversion-focused checkout, inventory and shipping automation, customer support and marketing that drives repeat orders. Most successful stores start on a hosted platform and add specialist apps only where they move revenue or cut cost. The E-commerce Stack on Saaskart maps this into 5 layers: Store & Checkout, Orders & Fulfillment, Marketing, Customer Care and Finance & Data.
What software does a e-commerce business need first?
Start with E-commerce Platform, Payment Gateways, Shipping Software, Email Marketing, Customer Support and Accounting Software. These cover the essentials. Add Inventory Management, Returns Management, SMS Marketing and SEO Software as you grow, and Order Management, Conversion Optimization, Enterprise Search and Advertising Technology at scale.
What are the best tools for online stores?
Leading options include Shopify, Stripe, VWO, Glean, Linnworks, Cin7, ShipStation and Loop Returns. The right choice depends on your size, budget and existing systems, so compare products category by category on Saaskart.
Who is the E-commerce Stack for?
New online stores: Get a store, payments and shipping live quickly and cheaply. Growing retailers: Automate fulfillment and support as order volume climbs. Store managers: One view of sales, stock and marketing performance.
Which KPIs should a e-commerce business track?
Key metrics include Conversion rate, Average order value, Repeat customer rate, Fulfillment time and Support first response time. Conversion rate: Share of sessions that place an order.
What mistakes should you avoid when building a e-commerce stack?
Choosing a platform that cannot handle your catalog size or B2B needs later. Adding apps without auditing site speed. No abandoned cart or post-purchase automation. Manual inventory updates across channels.
Which AI agents work best for e-commerce?
The most useful AI agent categories for this stack are E-commerce AI, Customer Support AI, Marketing AI, AI Search and Ad Copy AI. Deploy them next to your core software, grounded in your own data, with human review for important decisions.
How much does a e-commerce tech stack cost?
Costs depend on the tools, tiers and scale you choose. Many categories in the E-commerce Stack offer free plans or trials, and Saaskart shows real starting prices so you can budget layer by layer. Use Build Your Stack for a tailored recommendation.
Related stacks
Explore related stacks.
D2C Brand Stack
Build the technology stack for a modern D2C brand.
View stackMarketplace Seller Stack
Build the technology stack to sell across marketplaces.
View stackRetail Stack
Build the technology stack to run a modern retail business.
View stackMarketing Stack
Build the technology stack for a modern marketing team.
View stackAI Workforce Stack
Build an AI workforce that works across your whole business.
View stackDiscover, compare and build your E-commerce Stack.
Software, AI agents and services for every layer, in one marketplace.