Best Free Email Marketing Tools in 2025: What You Actually Get
Most "free" email marketing plans have significant limitations. Here's which free email tools are genuinely useful and which ones will frustrate you into upgrading quickly.
The honest truth about free email plans
Every major email marketing platform has a "free" tier, but they're not all equally useful. Some are generous starting points. Others are designed to frustrate you into upgrading within the first month.
Here's what the main free plans actually give you.
Brevo — Most generous free plan overall
Brevo's free plan is the most genuinely useful: unlimited contacts with 300 emails per day. The contact limit issue that plagues Mailchimp (500 contacts on free) simply doesn't exist. For a business with a large list that sends occasionally, Brevo's free plan is workable indefinitely.
The 300 emails/day limit (9,000/month) is meaningful for larger operations but works fine for small businesses.
Mailchimp — Most recognisable, most limited free plan
Mailchimp's free plan allows 500 contacts and 1,000 emails per month — significantly below what a growing business needs. The limitations are designed to push you toward paid plans quickly. The value of the Mailchimp free plan is familiarity and learning the platform, not sustaining a real business.
Moosend — Best automation on a free plan
Moosend offers a free plan for up to 1,000 subscribers that includes automation — most platforms lock automation behind paid plans. If automation is important to you and you're in the 0–1,000 subscriber range, Moosend's free tier is the most capable.
Kit (ConvertKit) — Best free plan for creators
Kit's free plan allows up to 10,000 subscribers for a single creator — the most generous subscriber limit in the industry at the free tier. If you're a blogger, podcaster, or newsletter writer with a growing list, Kit's free plan can sustain you for a long time.
The framework
Need to send to a large existing list occasionally: Brevo free.
Just starting, need to learn email marketing: Mailchimp free.
Want automation on a free plan: Moosend free (up to 1,000 subscribers).
Creator with a growing newsletter audience: Kit free (up to 10,000 subscribers).
One practical note: if you expect to grow beyond 2,500 subscribers in the next 6 months, it's worth evaluating paid platforms now. Migrating lists between email platforms is tedious, and the switching cost grows as your list does.