Free Resend alternatives: 5 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

5 of the 6 Resend alternatives we track can be used for free (free, open source, or with a free plan). Mailgun, Postmark and Loops rank highest, with facts last verified Nov 8, 2026.

Quick comparison

#	App	Pricing	Verified price	Open source	Platforms	Verified facts	Score
1	Mailgun	Free plan + paid	$35/month for 50,000 emails	No	Web	8 of 8	61.8
2	Postmark	Free plan + paid	$15 a month (Basic, 10,000 emails)	No	Web	6 of 6	57.5
3	Loops	Free plan + paid	$49 a month (Growth, up to 5,000 contacts)	No	Web	6 of 6	51.2
4	Brevo	Free plan + paid	$9 a month for 5,000 emails	No	Web, iOS, Android	5 of 5	49.0
5	Plunk	Open source	$0.001 per email	No	Web, Self-hosted	5 of 5	42.3

1. MailgunTop pick
Best for: Developers who need a reliable email API with inbound routing and address validation
Free plan + paidWeb
61.8
score / 100
Why switch from Resend
Mature API with detailed logs, inbound routing and email validation for larger senders.
Pros
Permanent free plan with 100 emails a day
Inbound email parsing and routing to your app
Email validation API from the same vendor
Detailed logs and deliverability tooling
Cons
Free plan's daily limit only suits testing and tiny apps
Validation and extra emails are billed on top of the plan
No drag-and-drop marketing editor
Visit Mailgun Details and reviews
How this score is calculated
Editorial fit ×0.377
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Mailgun a good Resend alternative?
Verified facts
8 of 8 verified
Free plan
Yes, 100 emails/day
Checked Nov 8, 2026mailgun.com(opens source in a new tab)
Starting paid plan
$35/month for 50,000 emails
Checked Nov 8, 2026mailgun.com(opens source in a new tab)
Extra emails
From $1.80 per 1,000 (Basic)
Checked Nov 8, 2026mailgun.com(opens source in a new tab)
Customers
150,000+ businesses
Checked Nov 8, 2026mailgun.com(opens source in a new tab)
Starting price
$15/month for 10,000 emails (Basic)
Checked Nov 8, 2026mailgun.com(opens source in a new tab)
Foundation plan
$35/month for 50,000 emails
Checked Nov 8, 2026mailgun.com(opens source in a new tab)
Scale plan
$90/month for 100,000 emails
Checked Nov 8, 2026mailgun.com(opens source in a new tab)
Free trial
1 month (Foundation and Scale)
Checked Nov 8, 2026mailgun.com(opens source in a new tab)
2. Postmark
Best for: SaaS teams that care most about fast, reliable delivery of password resets and receipts
Free plan + paidWeb
57.5
score / 100
Why switch from Resend
Transactional email with separate message streams and long-standing focus on fast inbox delivery.
Pros
Transactional and bulk mail kept in separate streams
Clear published pricing with unlimited daily sending
Inbound email processing on the Pro tier and above
Searchable activity logs with adjustable retention
Cons
Free plan allows only 100 emails a month
Less suited to large marketing newsletters
Fewer custom sending domains on the cheapest plan
Visit Postmark Details and reviews
How this score is calculated
Editorial fit ×0.363
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Postmark a good Resend alternative?
Verified facts
6 of 6 verified
Free plan
Yes, 100 emails a month
Checked Nov 8, 2026postmarkapp.com(opens source in a new tab)
Starting price
$15 a month (Basic, 10,000 emails)
Checked Nov 8, 2026postmarkapp.com(opens source in a new tab)
Data retention
45 days default, up to 365
Checked Nov 8, 2026postmarkapp.com(opens source in a new tab)
Daily limit
Unlimited emails/day on paid plans
Checked Nov 8, 2026postmarkapp.com(opens source in a new tab)
Pro plan
$16.50 a month (10,000 emails)
Checked Nov 8, 2026postmarkapp.com(opens source in a new tab)
Platform plan
$18 a month (10,000 emails)
Checked Nov 8, 2026postmarkapp.com(opens source in a new tab)
3. Loops
Best for: SaaS startups that want marketing and transactional email from one simple tool
Free plan + paidWeb
51.2
score / 100
Why switch from Resend
Combines product email and transactional sending with a friendlier editor for non-developers.
Pros
Marketing, product and transactional email together
All features on every plan
Easy integrations with common SaaS tools
Cons
Email only, no SMS or push
Less advanced segmentation and reporting
Younger platform with a smaller ecosystem
Visit Loops Details and reviews
How this score is calculated
Editorial fit ×0.341
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Loops a good Resend alternative?
Verified facts
6 of 6 verified
Free plan
Yes, 4,000 sends per 30 days to 1,000 contacts
Checked Nov 8, 2026loops.so(opens source in a new tab)
Growth plan
$49/month for up to 5,000 contacts
Checked Nov 8, 2026loops.so(opens source in a new tab)
Feature access
All features on every plan
Checked Oct 29, 2026loops.so(opens source in a new tab)
Focus
Email for SaaS teams
Checked Nov 8, 2026loops.so(opens source in a new tab)
Starting price
$49 a month (Growth, up to 5,000 contacts)
Checked Nov 8, 2026loops.so(opens source in a new tab)
Enterprise plan
Custom pricing for 1.5 million+ contacts
Checked Nov 8, 2026loops.so(opens source in a new tab)
4. Brevo
Best for: Businesses with large contact lists that want email, SMS and a CRM in one place
Free plan + paidWeb, iOS, Android
49.0
score / 100
Why switch from Resend
Sends transactional email over API or SMTP alongside marketing campaigns and SMS in one account.
Pros
Priced by emails sent, not contacts stored
Email, SMS, WhatsApp and transactional email together
Free plan with daily sending allowance
Cons
Free plan has a daily send limit and branding
Editor and templates less polished than some rivals
SMS credits cost extra
Visit Brevo Details and reviews
How this score is calculated
Editorial fit ×0.334
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Brevo a good Resend alternative?
Verified facts
5 of 5 verified
Free plan
Yes, up to 300 emails per day
Checked Nov 8, 2026brevo.com(opens source in a new tab)
Free plan terms
Free forever, no card needed
Checked Nov 8, 2026brevo.com(opens source in a new tab)
Starter volume
From 5,000 emails per month
Checked Nov 8, 2026brevo.com(opens source in a new tab)
Transactional messaging
Email, SMS and WhatsApp via SMTP and API
Checked Nov 8, 2026brevo.com(opens source in a new tab)
Starting price
$9 a month for 5,000 emails
Checked Nov 8, 2026brevo.com(opens source in a new tab)
5. Plunk
Best for: Startups and indie developers wanting transactional and marketing email in one open-source tool
Open sourceWeb, Self-hosted
42.3
score / 100
Why switch from Resend
Open source and self-hostable, adding campaigns and workflows to transactional sending.
Pros
Transactional, campaign and workflow email on one contact list
Pay per email with unlimited contacts
Open source and self-hostable with Docker
EU-hosted cloud option
Cons
Free plan adds Plunk branding and caps monthly sends
Smaller company and ecosystem than SendGrid or Mailchimp
AGPL licence can be restrictive if you modify and offer it as a service
Visit Plunk Details and reviews
How this score is calculated
Editorial fit ×0.312
Reviews ×0.363
Clicks (90 days) ×0.150
Freshness ×0.15100
Votes ×0.150
0 counted reviews, 0 up and 0 down votes. Full formula
Is Plunk a good Resend alternative?
Verified facts
5 of 5 verified
Free plan
1,000 emails/month
Checked Nov 8, 2026useplunk.com(opens source in a new tab)
Price
$0.001 per email
Checked Nov 8, 2026useplunk.com(opens source in a new tab)
License
AGPL-3.0
Checked Nov 8, 2026useplunk.com(opens source in a new tab)
Self-hosting
Yes, Docker Compose
Checked Nov 8, 2026useplunk.com(opens source in a new tab)
Data location
EU-hosted cloud
Checked Nov 8, 2026useplunk.com(opens source in a new tab)

Quick comparison

1. MailgunTop pick

Pros

Cons

Verified facts

2. Postmark

Pros

Cons

Verified facts

3. Loops

Pros

Cons

Verified facts

4. Brevo

Pros

Cons

Verified facts

5. Plunk

Pros

Cons

Verified facts