BigCommerce vs Klaviyo: Which Is Better in 2026?
A side-by-side comparison of BigCommerce and Klaviyo, two e-commerce tools — what each does, who it's best for, and how to choose between them.
BigCommerce
Flexible, scalable ecommerce for fast-growing brands.
- Category
- E-commerce
- Rating
- Not yet rated
- Best for
- ecommerce, headless, online store
Klaviyo
Data-driven email and SMS marketing that turns ecommerce store data into automated revenue.
- Category
- E-commerce
- Rating
- Not yet rated
- Best for
- email marketing, SMS, ecommerce
| At a glance | BigCommerce | Klaviyo |
|---|---|---|
| What it is | Flexible, scalable ecommerce for fast-growing brands. | Data-driven email and SMS marketing that turns ecommerce store data into automated revenue. |
| Category | E-commerce | E-commerce |
| Type | Software | Software |
| Best for | ecommerce, headless, online store | email marketing, SMS, ecommerce, automation |
What is BigCommerce?
BigCommerce offers an open, scalable platform for brands that need flexibility and headless options.
What is Klaviyo?
Klaviyo is a marketing automation platform built specifically for ecommerce, helping online stores turn their customer data into personalised email and SMS campaigns that reliably drive revenue. While generic email tools treat everyone on a list the same, Klaviyo's whole design revolves around the rich behavioural data an online store generates — what people browsed, bought, abandoned, and how much they've spent over time. By plugging directly into that data, it lets merchants send the right message to the right customer at the right moment, which is the difference between marketing that feels like spam and marketing that feels like a helpful nudge.
Its automations are where the real money is made. Abandoned-cart flows recover sales that would otherwise be lost; welcome series convert new subscribers; post-purchase flows drive repeat orders and reviews; and win-back campaigns re-engage lapsed customers — all triggered automatically by customer behaviour and running in the background once set up. Klaviyo combines email and SMS so you can reach customers on the channel they respond to, segments audiences with precision based on their actual actions and value, and ties every campaign back to the revenue it generated, so you always know what's working. Deep integrations with major ecommerce platforms mean it syncs store data in real time with minimal setup.
Klaviyo is the platform of choice for serious online stores — from fast-growing direct-to-consumer brands to established retailers — that treat email and SMS as major sales channels rather than afterthoughts. The reason it commands loyalty despite premium pricing is straightforward return on investment: well-built Klaviyo flows often generate a substantial share of a store's total revenue on autopilot. For any ecommerce business that wants to maximise customer lifetime value and stop leaving money on the table with generic blasts, Klaviyo provides the data, automation, and precision to make owned marketing one of its most profitable assets.
BigCommerce vs Klaviyo: which should you choose?
BigCommerce and Klaviyo both serve the e-commerce space, so the best choice depends on your priorities. Choose BigCommerce if you want Flexible, scalable ecommerce for fast-growing brands. Choose Klaviyo if you want Data-driven email and SMS marketing that turns ecommerce store data into automated revenue.The smartest move is to try each one's free tier or trial on a real task — that's the fastest way to feel the difference and pick the tool you'll actually stick with.
Frequently asked questions
Is BigCommerce better than Klaviyo?
It depends on what you need. BigCommerce is Flexible, scalable ecommerce for fast-growing brands. Klaviyo is Data-driven email and SMS marketing that turns ecommerce store data into automated revenue. Both are e-commerce tools, so the right pick comes down to your specific priorities, budget and workflow.
What's the main difference between BigCommerce and Klaviyo?
BigCommerce focuses on Flexible, scalable ecommerce for fast-growing brands. while Klaviyo focuses on Data-driven email and SMS marketing that turns ecommerce store data into automated revenue. Read the full breakdown above and check each tool's site for current features and pricing.
Can I use both BigCommerce and Klaviyo?
In many cases, yes — teams often use complementary tools together. Whether it makes sense depends on overlap in functionality and your budget. Try the free tier or trial of each to see how they fit your stack before committing.
Which is cheaper, BigCommerce or Klaviyo?
Pricing changes often, so check each tool's pricing page for the latest. Many tools offer a free tier or trial, which is the best way to evaluate value for your specific usage before you pay.