12 best SendGrid alternatives & competitors

The top SendGrid alternatives for transactional email, compared on price, free tier, ratings and what each is best for, with SendGrid pinned so you can measure each option against it.

Updated August 2026

About SendGrid

SendGrid logo

SendGrid

Email

SendGrid is a high-volume transactional and marketing email API with dedicated IPs, strong deliverability tooling, and detailed analytics, backed by Twilio's scale. The catch is support: slow responses and occasional account suspensions, reflected in a low Trustpilot score.

Best for

high-volume senders wanting a mature email API with dedicated IPs and detailed deliverability analytics

Starting price
$19.95/mo
Free tier
Trial
Rating
4.0 / 5
HIPAA
No

Company profile

Founded
2009
Headquarters
Denver, USA
Funding
Acquired
Team size
Not disclosed
Ownership
Acquired by Twilio in an all-stock deal
Reviews
4 / 5 on G2 (368)

Compliance

SOC 2 Type IIGDPRISO 27001EU data residencyNo HIPAA BAA

Official SDKs

PythonPHPNode.jsC#/.NETRubyJavaGo
Strengths
It provides detailed and valuable statistics on sent emails.
There's a lifelong free plan.
It's secure and safe.
Why teams look elsewhere
The documentation doesn't answer some questions and misses information.
It is challenging to use for people with zero technical background or coding knowledge.
The support system is slow and sometimes unresponsive.
Emails almost always end up in spam folders for Microsoft email users.

Side by side

SendGrid vs the alternatives

Sorted by rating · figures as of August 2026

SendGrid logo

SendGrid

You're viewing

Starting price

$19.95/mo

Free tier

Trial

Rating

4.0

Starting price

$20/mo

Free tier

3,000/mo

Rating

4.8

Starting price

$19/mo

Free tier

10,000/mo

Rating

4.7

Starting price

$15/mo

Free tier

100/mo

Rating

4.6

Starting price

$9/mo

Free tier

300/day

Rating

4.5

Starting price

$49/mo

Free tier

4,000/mo

Rating

4.5

Starting price

$100/mo

Free tier

No

Rating

4.4

Starting price

Usage-based

Free tier

3,000/mo (1st yr)

Rating

4.3

Starting price

$15/mo

Free tier

100/day

Rating

4.2

Starting price

$20/mo

Free tier

No

Rating

4.2

Starting price

$7/mo

Free tier

500/mo

Rating

4.1

Starting price

$15/mo

Free tier

1,000/mo

Rating

4.0

Starting price

$9/mo

Free tier

6,000/mo

Rating

4.0

ProviderStarting priceFree tierRating
SendGrid logo

SendGrid

You're viewing

$19.95/moTrial4.0
$20/mo3,000/mo4.8Compare →
$19/mo10,000/mo4.7Compare →
$15/mo100/mo4.6Compare →
$9/mo300/day4.5Compare →
$49/mo4,000/mo4.5Compare →
$100/moNo4.4Compare →
Usage-based3,000/mo (1st yr)4.3Compare →
$15/mo100/day4.2Compare →
$20/moNo4.2Compare →
$7/mo500/mo4.1Compare →
$15/mo1,000/mo4.0Compare →
$9/mo6,000/mo4.0Compare →

At a glance

What each SendGrid alternative is best for

Resend

4.8 / 5

Resend is a developer-first email API for React and Next.js teams. The catch is no HIPAA BAA, US-only data storage, and reports of abrupt account suspensions.
OneSignal Email

4.7 / 5

OneSignal Email offers a generous free tier within its multichannel push platform. The catch is email is secondary to its core push product and less mature than specialists.
Postmark

4.6 / 5

Postmark is a transactional email service with strong deliverability and streams that isolate message types. The catch is no marketing focus, no HIPAA BAA, and US-only data storage.
Brevo

4.5 / 5

Brevo is a GDPR-first, EU-based platform bundling email, SMS, WhatsApp, and CRM. The catch is it is not a purpose-built transactional provider, with strict anti-abuse suspensions.
Loops

4.5 / 5

Loops bundles marketing, lifecycle, and transactional email for SaaS teams with automated deliverability setup. The catch is a young company with no SOC 2, HIPAA, or EU data residency.
Customer.io

4.4 / 5

Customer.io is a lifecycle messaging platform with deep behavioral segmentation and a visual workflow builder. The catch is a steep learning curve and profile-based pricing that climbs with your audience.
AWS SES

4.3 / 5

Amazon SES sends high-volume email through AWS at among the lowest costs at scale. The catch is a bare-bones service with no template editor, campaign UI, or analytics.
Mailgun

4.2 / 5

Mailgun is a developer email API with strong deliverability and validation tooling and an EU region. The catch is inconsistent deliverability and support quality across reviews.
Mandrill

4.2 / 5

Mandrill is a transactional email add-on tightly integrated with the Mailchimp ecosystem. The catch is it requires a paid Mailchimp plan and will not sign a BAA.
MailerSend

4.1 / 5

MailerSend is a developer-focused transactional email and SMS API from the MailerLite team, with EU-hosted data by default, a real free tier, and built-in email verification. The catch is no formal SOC 2 Type II or HIPAA, and reports of accounts suspended over bounce-rate triggers.
SparkPost

4.0 / 5

SparkPost (now Bird) is a high-volume email API with strong deliverability and analytics. The catch is no HIPAA BAA and poor reviews since the 2023 Bird rebrand.
Mailjet

4.0 / 5

Mailjet is a GDPR-certified email service with EU data storage and a drag-and-drop editor. The catch is a 200-per-day free cap and reports of inconsistent deliverability.

FAQ

Common questions

The strongest SendGrid alternatives depend on what you need. Resend rates highest among the options here; the comparison table covers price, free tier, and rating, and the "what each alternative is best for" section matches each option to a use case.

One API, every provider

Switch or combine providers without rewrites.

Courier sits in front of SendGrid and every alternative above: route, fail over, and swap providers behind a single API.

Company facts, pricing and compliance were verified against each provider's public pricing and security or trust pages, plus G2 and Trustpilot, as of August 2026, and compiled by the Courier team. Details change often, so confirm with the provider before you buy.