Best Plunk Alternatives & Competitors in 2025

MailChimp is the best way to design, send, and share email newsletters.

Better transactional emails for teams.

Enterprise Email Warmup. Sender Domain Reputation Repair Tool to get out of spam and see open rates more than double in 4 to 14 days. We engage with your emails to teach mailbox providers not to send your email to the spam or the promotions folder.

Try for free paid Free Trial $149.0 / Monthly (Send to 100 of our unique seed emails per day)

Email for developers

Helping marketers build interactive emails and get better conversions from email marketing

freemium $49.0 / Monthly ( 30,000 Free email credits, Overage charges: $20/20,000 emails)

Everything email for your SaaS startup

freemium $10.0 / Monthly (5,000 contacts / 20,000 emails per month)

We bought a billboard in Times Square and we're letting you advertise your startup on it!It's free.

Email at its best, new from Basecamp.

paid Free Trial $99.0 / Annually

Klaviyo helps brands own the customer experience, grow higher-value relationships, and deliver more personalized marketing experiences across email, mobile, and web.

Send e-mail campaigns from a powerful dashboard. High performance and features packed into one app.

Open Source free

The future of how sales reps communicate with prospects

Email platform for product, marketing and engineering teams

All-in-one email service provider that provides maximum insight and deliverability results for both marketing and transactional emails.

Sendy is a self hosted newsletter app that sends emails 100x cheaper via Amazon SES