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10 Best Email Marketing Tools for v0-Built React Apps

14 min read

You built your UI with v0 because you wanted beautiful React components without starting from scratch. The AI generates shadcn/ui and Tailwind components from prompts or images, giving you production-ready UI fast. Now you need email that integrates cleanly with your Next.js stack.

v0 by Vercel excels at frontend generation. It creates React components with modern patterns, handles responsive design, and outputs code you can drop into your Next.js project. Most v0 projects end up deployed on Vercel, which influences which email platforms integrate most naturally.

This guide covers 10 email marketing tools that work well with v0-generated React apps and the Vercel ecosystem. I focused on platforms with clean APIs that work in Next.js API routes and Edge functions, plus the marketing automation SaaS products need. If you are using a different vibe-coding tool, check out our guides for Lovable, Tempo Labs, or Cursor.

Quick Comparison

ToolBest ForPrice at 10k SubsNext.js FitEdge Compatible
SequenzySaaS with Stripe$49/moExcellentYes
ResendReact developers$20/mo (volume)ExcellentYes
LoopsSimplicity$79/moGreatYes
PostmarkDeliverability$15/mo (volume)ExcellentYes
SendGridEnterprise scale$20-$90/moGoodYes
Customer.ioComplex automation$100+/moGoodVia API
ButtondownNewslettersFree-$29/moGoodYes
PlunkOpen-sourceFree-$10/moGreatYes
MailerLiteLanding pagesFree-$50/moVia ZapierNo
BrevoBudget + SMSFree-$25/moGoodYes

1. Sequenzy

Price: Free (100 subscribers) / $49/mo at 10,000 subscribers. Transactional emails included at no extra cost.

v0 generates React components, and Sequenzy's API integrates cleanly with Next.js API routes. Unlike Resend, which handles only transactional email, Sequenzy gives you full marketing automation included. One integration handles password resets AND your onboarding sequences.

The platform was purpose-built for SaaS, not repurposed e-commerce software. The visual sequence builder creates onboarding flows, trial conversions, and churn prevention campaigns without code. The AI generates complete email sequences from a prompt. Describe what you want, and you get working flows in minutes.

For v0 projects with Stripe payment integration, Sequenzy's native OAuth connects in seconds. It syncs MRR, LTV, plan changes, and payment events automatically. Segment users by "Pro plan" or "churned last month" without custom code. The revenue attribution shows which emails actually drive MRR.

Sequenzy handles both transactional emails and marketing automation in one platform. Your Next.js API routes call one service for everything. One sender reputation, one dashboard, half the complexity.

Where it falls short: No SMS messaging, no landing page builder, smaller integration ecosystem than legacy platforms. For landing pages, v0 can generate them directly.

Best for: SaaS founders building with v0 and Next.js who want unified email without multiple tools. At $49/mo for 10k subscribers, it is 55% cheaper than Mailchimp and 51% cheaper than ConvertKit. Perfect for indie hackers building UI-first products.

2. Resend

Price: Free (3,000 emails/month) / $20/mo for 50,000 emails

Resend is the natural pairing for v0 projects. Both come from the Vercel ecosystem, and the React Email library lets you build email templates using JSX. You write email components the same way you write React components.

The developer experience is excellent. Clean API, sensible error messages, thorough documentation. Calling Resend from Next.js API routes or Edge functions is straightforward. A few lines handles password resets, confirmations, or any transactional message.

For v0 projects where developers handle email integration, Resend feels natural. The React Email patterns maintain consistency with your component-based approach.

Where it falls short: Resend is not a marketing platform. No sequences, no behavioral triggers, no campaigns. If you need onboarding flows, you will need a second tool. See our Sequenzy vs Resend comparison.

Best for: Developers who need excellent transactional email with React patterns and will pair it with a separate marketing tool.

3. Loops

Price: Free (1,000 contacts) / $79/mo at 10,000 subscribers

Loops takes the modern, minimal approach to email marketing. Clean interface, focused features, fast setup. For v0 builders who want something running quickly, Loops delivers.

The platform combines transactional and marketing email. You get a visual automation builder, a clean email editor, and enough features for SaaS. The API works well with Next.js.

Where it falls short: Automation capabilities are basic compared to Customer.io or Sequenzy. At $79/mo for 10k, costs more than Sequenzy ($49/mo).

Best for: Founders prioritizing clean design and simplicity.

4. Postmark

Price: From $15/mo for 10,000 emails

Postmark built its reputation on deliverability. For v0 projects where transactional emails must arrive reliably, Postmark is a strong choice.

The platform works perfectly with Vercel Edge functions. The API is clean, documentation thorough, emails arrive within seconds. Postmark separates transactional and broadcast streams.

Where it falls short: Marketing features are basic. Limited automation.

Best for: Products where transactional reliability is critical.

5. SendGrid

Price: Free (100 emails/day) / $20-$90/mo at scale

SendGrid is the enterprise standard. The platform handles massive volumes and has Vercel templates for quick integration. If your v0 project might scale significantly, SendGrid is proven.

Where it falls short: Interface is cluttered. Marketing features lag behind specialized tools.

Best for: Teams expecting high volume.

6. Customer.io

Price: From $100/mo for up to 5,000 profiles

Customer.io offers sophisticated behavioral automation. Complex workflows, multi-channel messaging, A/B testing. The event API works with Next.js for tracking user behavior.

Where it falls short: Expensive. Steep learning curve.

Best for: Established products with complex customer journeys.

7. Buttondown

Price: Free (100 subscribers) / $29/mo at 10,000

Buttondown is the developer-friendly newsletter platform. Markdown support, solid API, privacy focus. If your v0 project includes a newsletter, Buttondown handles it elegantly.

Where it falls short: Not designed for product email. No transactional support.

Best for: Newsletters alongside your main product.

8. Plunk

Price: Free (3,000 emails/month) / ~$10/mo for more

Plunk is open-source transactional email. Works cleanly with Next.js API routes. Budget-friendly for bootstrapped projects.

Where it falls short: Fewer features. Smaller platform.

Best for: Bootstrapped developers minimizing costs.

9. MailerLite

Price: Free (1,000 subscribers) / ~$50/mo at 10,000

MailerLite offers landing pages, forms, and email together. Since v0 focuses on UI components rather than full pages, MailerLite can fill the landing page gap.

Where it falls short: Integration requires Zapier or webhooks. Not SaaS-focused.

Best for: Beginners wanting landing pages with email.

10. Brevo (formerly Sendinblue)

Price: Free (300 emails/day) / $25/mo at 20,000 emails

Brevo offers good value plus SMS that most competitors lack. The API works with Next.js.

Where it falls short: Mixed deliverability reports. Interface feels dated.

Best for: Budget-conscious founders needing SMS.

How to Choose

If you are just validating

Start with free tiers. Sequenzy offers 100 subscribers free. Loops gives 1,000 contacts. Test your email strategy before committing.

If you need transactional immediately

Resend for React Email patterns. Postmark for deliverability. Sequenzy if you want marketing included.

If you are building product-led growth

Sequenzy or Customer.io for behavioral triggers. Emails based on what users do matter more than signup dates.

If budget is tight

Plunk is open-source. Brevo's free tier is generous.

Integration Patterns for v0 Projects

Next.js API routes

v0 components typically live in Next.js projects. Create API routes that call your email platform. Clean separation between UI and email logic.

// app/api/email/welcome/route.ts
import { NextResponse } from 'next/server'

export async function POST(request: Request) {
  const { email, name } = await request.json()

  await fetch('https://api.sequenzy.com/v1/subscribers', {
    method: 'POST',
    headers: {
      'Authorization': `Bearer ${process.env.SEQUENZY_API_KEY}`,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      email,
      attributes: { name },
      sequences: ['welcome']
    })
  })

  return NextResponse.json({ success: true })
}

Edge functions

Vercel Edge functions work with any email API. Lower latency for transactional emails. Works well with Resend, Postmark, and Sequenzy.

Server actions

Next.js Server Actions can call email APIs directly. Useful for form submissions that need email confirmation.

Webhooks from payment providers

If your v0 project uses Stripe, payment webhooks trigger email actions. Create a webhook endpoint that translates Stripe events to email triggers.

The Bottom Line

For most v0 projects, Sequenzy offers the best balance: clean Next.js integration, unified transactional and marketing, and Stripe sync for SaaS. At $49/mo for 10k subscribers, the pricing is straightforward.

If you want React Email patterns and will add separate marketing, Resend is excellent. For pure transactional deliverability, Postmark. For simplicity, Loops.

v0 helps you build beautiful UIs fast. Your email platform should integrate just as cleanly. For more context, see our SaaS email marketing guide.

Using a different tool? Check our guides for Tempo Labs, Softgen, or Bolt.new.