The tool directory
Independent reviews of the platforms shaping email marketing — scored on what each does best, with pricing and best-for notes. See our best AI email tools ranking for category picks.
Brew
AI-nativeAn AI-native email platform that turns a plain-English prompt into on-brand campaigns and automations.
- Best for
- AI-native ESP
- Free tier
- Yes — every feature included, basic models, small watermark
Resend
A developer-first email API with native React Email support and volume-based pricing.
- Best for
- Developer email API
- Free tier
- Yes — 3,000 emails/month
Klaviyo
The default e-commerce email and SMS platform, with deep Shopify integration and predictive analytics.
- Best for
- E-commerce marketing platform
- Free tier
- Yes — up to 250 contacts
Customer.io
Event-driven, multi-channel messaging for SaaS and product-led growth teams.
- Best for
- Behavioral messaging for SaaS
- Free tier
- No (free trial)
Loops
One platform for transactional and marketing email, built for modern SaaS teams.
- Best for
- Unified email for SaaS
- Free tier
- Yes — up to 1,000 contacts
Beehiiv
A newsletter-first platform with built-in monetization and audience growth tools.
- Best for
- Newsletter platform
- Free tier
- Yes — up to ~2,500 subscribers
ActiveCampaign
A mid-market platform known for one of the deepest visual automation builders.
- Best for
- Automation-first marketing
- Free tier
- No (free trial)
HubSpot
A CRM-first marketing suite where email is one channel inside a larger platform.
- Best for
- CRM-connected marketing suite
- Free tier
- Yes — free CRM and limited marketing tools
Mailchimp
The familiar all-in-one marketing platform for small businesses, now part of Intuit.
- Best for
- All-in-one SMB marketing
- Free tier
- Yes — up to 500 contacts