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Best SendGrid Alternatives in 2026, Ranked

Quick answer: Resend is the best SendGrid alternative for most developers in 2026: 3,000 free emails a month that never expire, a clean API, and $20 for 50,000. Pick Postmark if deliverability of password resets is everything, Amazon SES if price per email is, and Brevo if you need marketing and transactional sending in one account.

The reason this search exists is simple. SendGrid no longer has a free plan. New accounts get a 60-day trial at 100 emails a day, and when it ends, sending stops until you upgrade. Essentials starts at $19.95 a month.

Most pages ranking for this query are written by one of the alternatives, and each concludes you should buy its product. We run a directory of public APIs and list SendGrid next to its competitors, so this ranking has no horse in the race. Every price below was read from the vendor's own pricing page on 2 October 2026.

Why are developers leaving SendGrid?

Three reasons come up again and again:

  1. The free tier is gone. Twilio retired SendGrid's permanent free plan in 2025. What remains is a timed trial, which is fine for evaluation and useless for a side project that sends 20 emails a day forever.
  2. The entry price is high for small senders. $19.95 a month is the floor for a production account. Several competitors start at $15 or less, or stay free well past where SendGrid's trial ends.
  3. Shared IP reputation. On the lower tiers you send from shared IPs, and a dedicated IP only arrives with Pro at $89.95 a month. Teams that see password resets land in spam often move for this alone.

How do the free tiers compare?

The headline numbers are not in the same unit. Some reset daily, some monthly, one expires.

| Provider | Free allowance | Catch | Cheapest paid plan | |---|---|---|---| | SendGrid | 100/day | Trial, ends after 60 days | $19.95/mo | | Mailtrap | 4,000/month | Capped at 150/day | $15/mo for 10,000 | | Resend | 3,000/month | Capped at 100/day | $20/mo for 50,000 | | Mailgun | 100/day | One custom domain, 1-day logs | $15/mo for 10,000 | | SMTP2GO | 1,000/month | None notable | $10/mo for 10,000 | | MailerSend | 500/month | 100 API requests a day | $5.60/mo for 5,000 | | Postmark | 100/month | Testing only, never expires | $15/mo for 10,000 | | Brevo | 300/day | Shared with marketing sends | Starter, from 5,000/month | | Amazon SES | No free plan | AWS credits for new accounts only | $0.10 per 1,000, pay as you go |

Two things fall out of that table. Mailtrap and Resend are the only permanent free tiers above 3,000 emails a month, and both cap you per day, so a single batch job can still hit the wall. And at volume, nothing touches Amazon SES: 100,000 emails costs about $10 there, against $35 on Resend Pro.

What are the best SendGrid alternatives?

Ranked for a developer replacing SendGrid for transactional email: signups, password resets, receipts.

  1. Resend. The modern default. A small, well-documented REST API, React Email for templates, 3,000 free emails a month, and Pro at $20 for 50,000. It is in our directory as Resend. Verdict: best overall for a new product.
  2. Postmark. Built only for transactional email and strict about it, which is why its inbox placement has the best reputation in the category. The free developer tier is 100 emails a month, so it is a paid choice from day one: $15 a month for 10,000. Verdict: best when every reset email has to land.
  3. Amazon SES. $0.10 per 1,000 emails on pay-as-you-go, with no monthly minimum. You pay for that in setup: sandbox approval, DNS records, and bounce handling you wire up yourself through AWS. Verdict: cheapest at scale, if you already live in AWS.
  4. Mailgun. The closest like-for-like replacement for SendGrid, with SMTP relay, inbound routing and a mature API. A free plan at 100 a day, then $15 for 10,000 or $35 for 50,000. Verdict: easiest migration from a SendGrid integration.
  5. Mailtrap. Started as an email testing sandbox and now sends production mail too, with the largest monthly free allowance here at 4,000. Listed in our directory as Mailtrap. Verdict: best if you want testing and sending from one vendor.
  6. Brevo. Formerly Sendinblue, and the only pick here that is a full marketing platform as well. 300 emails a day free across both kinds of sending. Our directory still lists it under its old name, Sendinblue. Verdict: best when one tool must also run newsletters.
  7. SMTP2GO. Unfashionable and dependable, with 1,000 free emails a month, no daily cap, and $10 for 10,000. Verdict: best cheap SMTP relay for legacy apps.
  8. MailerSend. From the MailerLite team, with a drag-and-drop template builder and a $5.60 Hobby plan for 5,000 emails. Verdict: cheapest paid entry point.

Can you self-host instead?

Yes, but you are then running a mail server, and IP reputation becomes your job. Read live from GitHub today:

| Project | Stars | Last push | Licence | What it is | |---|---|---|---|---| | listmonk | 23,656 | 2026-10-02 | AGPL-3.0 | Newsletter and mailing list manager | | Postal | 16,844 | 2026-10-01 | MIT | Full mail delivery platform | | Plunk | 5,499 | 2026-09-29 | AGPL-3.0 | Email platform built on top of SES | | useSend | 4,700 | 2026-09-08 | AGPL-3.0 | Open-source Resend-style API on SES |

Postal is the only one that actually delivers mail itself. Plunk and useSend are self-hosted control planes that still hand delivery to Amazon SES, which is usually the right trade: you own the dashboard and the data, and Amazon owns the IP reputation.

What our directory shows about email APIs

Our email category lists 29 APIs, and only 6 of them send email: SendGrid, Brevo, Resend, Mailtrap, Sweego and IndiePitcher. The other 23 do something adjacent. Fourteen validate addresses, seven create disposable or temporary inboxes, one forwards mail, and one is really an SMS API.

That split is useful when you are rebuilding a signup flow. Swapping your sender is half the job, and a validation API in front of it, so you stop sending to typos and throwaway domains, protects the reputation of whichever sender you pick. Several of those validators, such as Disify and Heybounce, need no API key at all.

All 6 sending APIs authenticate with a static API key. A sending key can spend your quota and your domain's reputation, so it belongs on the server and never in browser code. Our guide to API authentication methods covers how to store and rotate one.

Which one should you pick?

| If this is you | Pick | |---|---| | New product, want a clean API and a real free tier | Resend | | Password resets and receipts must hit the inbox | Postmark | | Sending hundreds of thousands a month, already on AWS | Amazon SES | | Migrating an existing SendGrid integration with least change | Mailgun | | Need newsletters and transactional email together | Brevo | | Want to own the whole stack | Plunk or useSend on SES |

Frequently asked questions

Is SendGrid still free?

No. New accounts get a 60-day trial at 100 emails a day, and SendGrid's own support page says sending stops when it ends unless you upgrade. The cheapest paid plan, Essentials, starts at $19.95 a month.

Which email API is the best for free?

For a permanent free tier, Mailtrap includes 4,000 emails a month and Resend 3,000, both with a daily cap. SMTP2GO gives 1,000 a month with no daily cap. Postmark's free tier is only 100 a month and is meant for testing.

Which is better, Mailgun or SendGrid?

For a small sender, Mailgun: it still has a free plan at 100 a day, and its paid entry is $15 against SendGrid's $19.95. Feature for feature they are close, which is also why Mailgun is the easiest migration.

What is the cheapest SendGrid alternative?

Amazon SES at $0.10 per 1,000 emails, with no monthly fee. Among managed services with a dashboard, MailerSend's $5.60 Hobby plan and SMTP2GO's $10 Starter plan are the cheapest paid entry points.