AppBreakup
Submit an app

Free Mailtrap alternatives: 5 apps ranked by verified data

Facts checked Nov 8, 2026AppBreakup editorialHow we rank

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

Quick comparison

#AppPricingVerified priceOpen sourcePlatformsVerified factsScore
1Postmark logoPostmarkFree plan + paid$15 a month (Basic, 10,000 emails)NoWeb6 of 664.8
2Mailgun logoMailgunFree plan + paid$35/month for 50,000 emailsNoWeb8 of 861.8
3Resend logoResendFree plan + paid$20 a month for 50,000 emails (Pro)NoWeb6 of 657.5
4Brevo logoBrevoFree plan + paid$9 a month for 5,000 emailsNoWeb, iOS, Android5 of 551.2
5Mailjet logoMailjetFree plan + paid$9 a month (Starter, 8,000 emails/month)NoWeb6 of 649.0
  1. Postmark logo

    1. PostmarkTop pick

    Best for: SaaS teams that care most about fast, reliable delivery of password resets and receipts

    Free plan + paidWeb

    64.8

    score / 100

    Why switch from Mailtrap

    Focused on fast transactional delivery with clear per-email pricing and separate message streams.

    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 ×0.387
    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 Mailtrap 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)
  2. Mailgun logo

    2. Mailgun

    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 Mailtrap

    Developer email API with built-in validation and a free tier, owned by Sinch.

    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 Mailtrap 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)
  3. Resend logo

    3. Resend

    Best for: Developers and startups who want a modern email API with React-based templates

    Free plan + paidWeb

    57.5

    score / 100

    Why switch from Mailtrap

    Developer-first sending API with React Email templates and a generous free tier, simpler setup than most senders.

    Pros

    • Simple REST API plus SMTP relay and official SDKs
    • React Email templates fit naturally into JavaScript codebases
    • Free plan is enough for side projects and testing
    • Transactional and broadcast email in one account

    Cons

    • Free plan is capped at 100 emails a day
    • Dedicated IPs and SSO cost extra add-ons
    • Younger service with fewer marketing features than full email marketing suites
    Visit Resend 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 Resend a good Mailtrap alternative?

    Verified facts

    6 of 6 verified
    Free plan
    Yes, 3,000 emails a month (100 a day)
    Checked Nov 8, 2026resend.com(opens source in a new tab)
    Starting price
    $20 a month for 50,000 emails (Pro)
    Checked Nov 8, 2026resend.com(opens source in a new tab)
    Sending methods
    REST API and SMTP relay
    Checked Nov 8, 2026resend.com(opens source in a new tab)
    Free trial
    No, free-forever plan instead
    Checked Nov 8, 2026resend.com(opens source in a new tab)
    Dedicated IP
    $30/month add-on
    Checked Nov 8, 2026resend.com(opens source in a new tab)
    Scale plan
    $90 a month for 100,000 emails
    Checked Nov 8, 2026resend.com(opens source in a new tab)
  4. Brevo logo

    4. Brevo

    Best for: Businesses with large contact lists that want email, SMS and a CRM in one place

    Free plan + paidWeb, iOS, Android

    51.2

    score / 100

    Why switch from Mailtrap

    Transactional email plus marketing campaigns, SMS and CRM 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 ×0.341
    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 Brevo a good Mailtrap 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. Mailjet logo

    5. Mailjet

    Best for: Teams that need marketing and transactional email together, with collaborative editing

    Free plan + paidWeb

    49.0

    score / 100

    Why switch from Mailtrap

    Handles both transactional API sending and marketing campaigns, with EU-based data hosting for GDPR-minded teams.

    Pros

    • Marketing and transactional email in one account
    • Real-time collaboration and approval workflows
    • Volume-based pricing with a free plan

    Cons

    • Free plan has a daily send cap
    • Basic automation
    • Limited support on lower tiers
    Visit Mailjet 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 Mailjet a good Mailtrap alternative?

    Verified facts

    6 of 6 verified
    Free plan
    Yes, 6,000 emails/month (200 per day)
    Checked Nov 8, 2026mailjet.com(opens source in a new tab)
    Free plan card
    No credit card required
    Checked Nov 8, 2026mailjet.com(opens source in a new tab)
    Starter plan
    8,000 emails/month, no daily limit
    Checked Nov 8, 2026mailjet.com(opens source in a new tab)
    Starting price
    $9 a month (Starter, 8,000 emails/month)
    Checked Nov 8, 2026mailjet.com(opens source in a new tab)
    Essential plan
    $19 a month, 15,000 emails/month
    Checked Nov 8, 2026mailjet.com(opens source in a new tab)
    Premium plan
    $29 a month, 15,000 emails/month
    Checked Nov 8, 2026mailjet.com(opens source in a new tab)