| Feature | ||
|---|---|---|
| Starting Price | $17/month | $19.95/month |
| Pricing Model | Freemium | Freemium |
| Free Tier | ||
| Free Trial | 60 days | |
| Best For | Startups | Startups |
| Tool Type | Best-value |
Who each tool is built for, what it does best, and how much effort it takes to get started.
| Tool | Best for | Strength | Setup effort | Ideal ICP |
|---|---|---|---|---|
| Email campaigns + automation | Email marketing software with design, automation, and collaboration tools | Low | Bootstrapped founders + indie hackers | |
| Email campaigns + automation | Integrated email platform for scalable email delivery and marketing | Low | Bootstrapped founders + indie hackers |


Mailjet helps you send marketing and transactional emails. It's easy for developers and liked by marketers.
SendGrid helps you send emails at scale. Whether it's for developers or marketers, SendGrid makes email delivery easy.
Mailjet's sweet spot is mid-market teams doing high-volume transactional + marketing emails who need actual collaboration (not just solo tools like Sendgrid). The freemium tier is genuinely useful for testing flows, but you'll hit send limits fast if you're running real campaigns—plan for paid sooner than you think.
Skip it if you're doing sophisticated segmentation or heavy API work; go Klaviyo or Segment instead. Best when paired with a CRM that lacks native email, like Pipedrive or early-stage Salesforce instances.
SendGrid is your move if you're doing transactional email at serious volume or need bulletproof deliverability for a user-facing product — but if you're just blasting marketing campaigns, you're paying for infrastructure you don't need. The free tier gets you 100 emails/day which is basically useless for growth work, so you're really evaluating the paid plans against Mailgun or AWS SES depending on whether you want the UI sugar or raw API control.
Best use case: pairing it with your product's notification system (onboarding flows, password resets, digest emails) while running marketing campaigns through a cheaper tool like ConvertKit or even Klaviyo if you're ecommerce. Skip it if you're a early-stage founder still in "send emails from your personal account" phase — the setup tax isn't worth it yet.
Choose Mailjet if you want maximum value for your money — does 80% of what the big names do at a fraction of the cost. Starts at $17/month. Free tier available — no credit card needed.
Choose SendGrid if you want maximum value for your money — does 80% of what the big names do at a fraction of the cost. Starts at $19.95/month. Free tier available — no credit card needed.
On price alone, Mailjet wins at $17/month. But cheaper isn't always better — check the feature breakdown above.
Mailjet is a best-value conversion tool built for startups, starting at $17/month. Email marketing software with design, automation, and collaboration tools.
Choose Mailjet if:
See all SendGrid alternatives or browse the Conversion directory.
SendGrid is a best-value conversion tool built for startups, starting at $19.95/month. Integrated email platform for scalable email delivery and marketing.
Choose SendGrid if:
See all Mailjet alternatives or browse the Conversion directory.
Let's talk money — because that's usually what drives the decision for startups and growth teams.
Mailjet starts at $17/month with 4 pricing tiers. Free tier included. Priced for startups — won't wreck your runway.
SendGrid starts at $19.95/month with 4 pricing tiers. Free tier included. Startup-friendly pricing.
Our take: Mailjet is the more affordable option at $17/month vs $19.95/month. But cheaper isn't always better — compare what you get at each tier before deciding. We always list monthly billing rates — not the discounted annual price that makes everything look cheaper.
It depends on your team size, budget, and priorities. Mailjet is a best-value conversion tool built for startups, starting at $17/month. SendGrid is a best-value option aimed at startups, starting at $19.95/month. See the feature comparison above for a detailed side-by-side.
Mailjet starts at $17/month, while SendGrid starts at $19.95/month. Mailjet is more affordable on paper. Keep in mind: the cheapest plan isn't always the best deal. Compare what you get at each tier, not just the starting price. We always list monthly billing rates, not discounted annual prices.
Both are e-mail activation tools, so most teams pick one to avoid redundancy and extra costs. That said, some teams use both for different segments or use cases — just make sure the overlap doesn't waste your budget.
Both Mailjet and SendGrid offer free tiers. You can try each without a credit card and see which fits your workflow before spending anything.
Most conversion tools support data export. Start by exporting your data from your current tool, then check the new tool's import documentation. Many offer migration assistance or onboarding calls to help with the switch.
| Best-value |
| Category | Conversion | Conversion |
| Subcategory | E-mail activation | E-mail activation |
| Plans | Free: $0/month Essential: $17/month Premium: $27/month Custom: Upon request | Free Trial: $0/month Essentials: $19.95/month Pro: $89.95/month Premier: Custom pricing |
| Description | Email marketing software with design, automation, and collaboration tools. | Integrated email platform for scalable email delivery and marketing. |
| Actions |
Switching conversion tools doesn't have to be painful. Here's a practical migration checklist:
Since at least one of these tools offers a free tier, you can run the parallel test without doubling your costs.
Both Mailjet and SendGrid are legitimate conversion tools with real users and proven track records. The "best" choice depends entirely on your team, your budget, and your priorities.
If value is your top priority, Mailjet delivers strong features without the premium price tag.
Don't overthink it. Pick the tool that solves your biggest current pain point, test it for a week, and commit. The worst decision is no decision — spending months comparing tools while your conversion workflow sits broken.
Explore Mailjet alternatives · SendGrid alternatives · Full directory