The best SendGrid alternatives

7 tools to consider instead of SendGrid, compared on price, free plan and features, with what each one does well and where it falls short.

TL;DR

  1. 1Fromly · SaaS teams on Supabase and Stripe who want emails driven by product data.
  2. 2Resend · Developers who mostly send transactional email from code.
  3. 3Mailgun · Engineering teams sending large volumes of transactional email.
  4. 4Plunk · Developers who want open source, or to host their email platform themselves.
  5. 5Sequenzy · Teams who want one broad platform, with forms, A/B tests, SMS and revenue attribution included.
  6. 6Brevo · Small businesses who want email, SMS and a CRM in one subscription.
  7. 7Mailchimp · Marketing teams and small businesses who want a familiar all-round tool.

Why look for a SendGrid alternative?

  • There is no lasting free plan, only a 60-day trial
  • Marketing campaigns are a separate product with their own pricing
  • The pricing page shows starting prices only, and overages may apply
  • You want lifecycle email driven by your Supabase users and Stripe billing, not only an API

7 SendGrid alternatives

  1. 1.Fromly

    Free, then $0.001 per email

    Email marketing for SaaS: connects to Supabase and Stripe so emails follow what users actually do, with campaigns, automations and a transactional API.

    Best for saaS teams on Supabase and Stripe who want emails driven by product data.

    Pros

    • Supabase sign-ups and Stripe billing on every contact, with no code
    • Pay per email from the first one, unlimited contacts
    • Each workspace sends under its own reputation

    Cons

    • No A/B testing, signup forms or SMS yet
    • Stripe is the only billing tool connected today
  2. 2.Resend

    $20/mo for 50,000 emails

    An email API built for developers, with broadcasts and automations on top.

    Best for developers who mostly send transactional email from code.

    Pros

    • A polished developer experience: SDKs in many languages, React Email and a test mode
    • 3,000 free transactional emails a month
    • Above about 20,000 transactional emails a month, cheaper than Fromly: $35 for 100,000

    Cons

    • Marketing email is a separate plan, priced by contacts
    • The free plan stops at 100 emails a day
    • Automations are billed per run beyond the free 10,000
  3. 3.Mailgun

    $15/mo for 10,000 emails

    An email API and SMTP relay for developers sending at high volume.

    Best for engineering teams sending large volumes of transactional email.

    Pros

    • Cheaper than Fromly from 50,000 emails a month: $35 against $50, and $90 against $100 at 100,000
    • Built for very high volumes, with dedicated IPs, US or EU hosting and an uptime SLA
    • Email validation, inbound routing and inbox previews from the same vendor

    Cons

    • An API, not a marketing tool: the page says there is no send button, and no automations are listed
    • One sending domain and one day of logs on Free and Basic
    • No firm price for 500,000 emails without overage or a sales quote
  4. 4.Plunk

    Free, then $0.001 per email

    An open-source email platform for transactional email, automations and campaigns, with a self-hosted option.

    Best for developers who want open source, or to host their email platform themselves.

    Pros

    • Open source (AGPL-3.0) and self-hostable with Docker Compose
    • Same per-email price as Fromly, every feature on every plan
    • Inbound email, SMTP and an MCP server included

    Cons

    • Plunk branding on free emails
    • No built-in Supabase or Stripe connection stated: triggers come from events your code sends
  5. 5.Sequenzy

    $19/mo for 15,000 emails

    An all-in-one email platform for SaaS and ecommerce: campaigns, automations, transactional API, SMS and a shared inbox.

    Best for teams who want one broad platform, with forms, A/B tests, SMS and revenue attribution included.

    Pros

    • A very broad feature set on every plan, free included
    • 2,500 free emails a month
    • From about 30,000 emails a month, as cheap as Fromly or cheaper

    Cons

    • Prices move in tiers: 16,000 emails cost the 30,000 tier
    • A large product to learn when you only need a few flows
  6. 6.Brevo

    $9/mo for 5,000 emails

    A marketing suite with email, SMS, WhatsApp, a CRM and transactional email.

    Best for small businesses who want email, SMS and a CRM in one subscription.

    Pros

    • Email, SMS, WhatsApp, push and a CRM under one roof
    • Cheaper than Fromly from about 100,000 emails a month: $82 on Starter against $100
    • A/B testing, forms, landing pages and revenue reports, which Fromly does not have

    Cons

    • Automation starts on Standard: 10,000 emails a month cost $35 there
    • Prices move in tiers: 10,001 emails on Starter cost the 15,000 tier, $25
    • Shared IPs by default; a dedicated IP only on Enterprise
  7. 7.Mailchimp

    $13/mo for 500 contacts

    The best-known email marketing platform, with templates, automations and a large ecosystem of integrations.

    Best for marketing teams and small businesses who want a familiar all-round tool.

    Pros

    • A large template library, a drag-and-drop editor and over 300 integrations
    • Forms, landing pages, A/B tests and surveys in the same account
    • Familiar to most marketers, with onboarding help on paid plans

    Cons

    • Priced by contacts, with sends capped at 10 to 15 times your contact count
    • Automations are limited to 4 steps on Essentials and are not on the free plan
    • Built around stores and marketing lists, not product events from a SaaS

Side by side

ToolPricingStarts at
Fromly$0.001 per email, first 1,000 freeFree, then $0.001 per email
ResendTransactional plans by volume, 3,000 free; marketing priced by contacts$20/mo for 50,000 emails
MailgunPlans by volume, 100 emails a day free$15/mo for 10,000 emails
Plunk$0.001 per email, free plan up to 1,000Free, then $0.001 per email
SequenzyFree up to 2,500 emails, then volume tiers$19/mo for 15,000 emails
BrevoPlans by email volume, free with a daily cap$9/mo for 5,000 emails
MailchimpPriced by contacts, with a send limit$13/mo for 500 contacts
SendGrid(for reference)Plans by volume, 60-day free trial$19.95/mo (Essentials)

FAQ

SendGrid alternatives: questions, answered

What is the best SendGrid alternative for SaaS?
It depends on what you need. Fromly fits a SaaS on Supabase and Stripe that wants campaigns, automations and transactional email in one product. Resend is a developer-first email API with a free plan. Mailgun is another established API for high transactional volume.
Is there a cheaper alternative to SendGrid?
Below about 20,000 emails a month, Fromly and Plunk are cheaper at $0.001 per email: 10,000 emails cost $10 against $19.95. Above that, Resend Pro costs $20 for 50,000 emails and $35 for 100,000.
Which SendGrid alternative has a free plan?
Plunk is free up to 1,000 emails a month, Sequenzy up to 2,500 and Resend up to 3,000 (100 a day). Brevo allows 300 emails a day and Mailgun 100 a day. Fromly offers 1,000 emails once at sign-up.

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