Twilio SendGrid is the most popular email delivery API, but paid plans start at $19.95/month and the free tier caps at 100 emails per day. For developers and startups sending transactional mail — password resets, receipts, notifications — several free options offer more volume. Here are the best free SendGrid alternatives.
| Alternative | Price | Best For | No Signup? |
|---|---|---|---|
| Amazon SES | Free (3,000 emails/mo, 12 mo) | Cheapest volume at scale | Account needed |
| Mailgun (Free tier) | Free (3,000 emails/mo) | API-first delivery + analytics | Account needed |
| Resend | Free (3,000 emails/mo) | Modern developer experience | Account needed |
| Brevo (Free) | Free (300 emails/day) | Transactional + marketing free | Account needed |
| Mailjet (Free) | Free (6,000 emails/mo) | Higher free volume | Account needed |
Amazon SES's free tier covers 3,000 emails per month for the first 12 months, then costs about $0.10 per 1,000 emails — a fraction of SendGrid's pricing. With full API and SMTP support, high deliverability, and virtually unlimited scale, SES is the top free SendGrid alternative for cost-sensitive teams.
Mailgun provides a developer-friendly email API with webhooks, logs, and deliverability analytics. Its free tier historically includes several thousand emails per month, and pricing only starts after you exceed it. For API-first projects, it is a direct SendGrid substitute.
Resend is a modern email API built for developers with a clean REST API, SDKs for every language, webhooks, and a generous free tier of 3,000 emails per month (100/day). It is rapidly becoming the default SendGrid replacement for new projects.
Brevo free includes 300 emails per day shared across transactional and marketing sends, plus an API, SMTP relay, and drag-and-drop editor. Teams that need both delivery and campaigns get both on the free plan.
Mailjet free offers 6,000 emails per month (200/day) with both marketing and transactional API access. For teams that need more free volume than SendGrid's 100/day, Mailjet triples the daily allowance.
Twilio SendGrid costs $19.95-89.95/month ($239-1,079/year). That is $239-1,079/year every year — money that could go toward building an AI-powered income stream instead. Our case studies show that you can build complete revenue-generating systems using only free tools.
| Option | Monthly Cost | Annual Cost | 5-Year Total |
|---|---|---|---|
| Twilio SendGrid | $19.95-89.95 | $239-1,079 | $1,197-5,399 |
| Free Alternatives | $0 | $0 | $0 |
| Savings | $239-1,079/year/year saved | ||
The best free alternative to Twilio SendGrid depends on your needs. Amazon SES is ideal for cheapest volume at scale. Mailgun (Free tier) is ideal for api-first delivery + analytics. Resend is ideal for modern developer experience. All of these alternatives are free or have generous free tiers.
Twilio SendGrid costs $19.95-89.95/month ($239-1,079/year). For most individual users and small projects, the free alternatives listed here provide 80-100% of the functionality at zero cost. Teams with complex collaboration needs may find the paid version worthwhile, but solo creators and small businesses can save hundreds per year.
Yes. The alternatives we list are production-ready tools used by millions. Most people switching from Twilio SendGrid find that 2-3 free tools combined cover all their needs, often with better specialised features than the all-in-one paid product.
Yes. Every alternative listed is a well-established tool with active development, large user bases, and transparent privacy policies. Open-source options like those from Hugging Face and Ollama are additionally auditable — you can inspect the code yourself.
Switching from Twilio SendGrid ($19.95-89.95/month ($239-1,079/year)) to free alternatives saves you $239-1,079/year per year. Over 5 years, that is enough to fund a side business or invest in other tools.
Browse All Free Alternatives →