Open-source alternative
for Mailchimp
Mailchimp is for marketers. BigFat AI Labs is for developers who need full control, modern API, and transparent pay-as-you-go pricing. Same features, better DX.
The Pricing Model That Makes Sense
Pay for what you use, not for what you store
Pay per email sent
Pay-as-you-go pricing. Only pay for emails you actually send, not for contacts stored.
- Only pay for emails you actually send
- Unlimited contacts in your database
- No penalties for growing your list
Pay per contact stored
Charged for every contact in your list, whether you email them or not.
- Pay for contacts even if you don't email them
- Growing your list = automatic price increase
- Duplicate contacts count multiple times
Why Developers Choose BigFat AI Labs
Pay-as-you-go Pricing
Only pay for emails you send, not for contacts you store. No monthly minimums or fixed subscription costs.
API-First
Modern REST API designed for developers. 10x easier to integrate than Mailchimp's marketing-focused API.
5-Minute Setup
Start sending in minutes. No audiences to configure, no lists to manage. Just send emails.
Open Source
AGPL-3.0 licensed. Inspect the code, self-host, no vendor lock-in. Mailchimp is proprietary.
All-in-One
Transactional and marketing emails in one platform. No need for separate Mandrill account.
Event-Driven
Trigger workflows based on user actions. Advanced automation that Mailchimp can't match.
Feature comparison
Frequently asked questions
When should I choose Mailchimp over BigFat AI Labs?
Choose Mailchimp if you're a marketer who needs a drag-and-drop email builder and prefers a marketing-first interface. Mailchimp excels at visual design and non-technical users. Choose BigFat AI Labs if you're a developer who values API-first design, wants transactional + marketing in one platform, and prefers code over drag-and-drop.
What is the difference between BigFat AI Labs and Mailchimp pricing?
Mailchimp charges per contact stored, regardless of how many emails you send. BigFat AI Labs uses a pay-as-you-go model where you only pay for emails sent. This means with Mailchimp, your cost increases as your contact list grows, while with BigFat AI Labs, you only pay when you actually send emails.
Can BigFat AI Labs handle both transactional and marketing emails?
Yes, that's one of BigFat AI Labs' key advantages. Transactional emails (receipts, password resets) and marketing emails (newsletters, campaigns) are built into one platform. With Mailchimp, you need their separate Mandrill service for transactional emails, which adds complexity.
Is BigFat AI Labs' API easier to use than Mailchimp's?
Yes, significantly. BigFat AI Labs has a modern RESTful API designed for developers. Mailchimp's API is complex and marketing-focused, requiring you to understand concepts like "audiences," "campaigns," and "merge fields." Most developers find BigFat AI Labs's API 10x easier to integrate.
Does BigFat AI Labs have a visual email builder like Mailchimp?
BigFat AI Labs has a minimal email editor, most of our users manage their own templates using their own HTML. This gives developers full control and enables version control, testing, and reusability. If you need a drag-and-drop builder, Mailchimp is better. If you prefer code and want beautiful, responsive emails, BigFat AI Labs is the better choice.
Ready for a better developer experience?
Join developers who've switched from Mailchimp to BigFat AI Labs for better DX and transparent pay-as-you-go pricing.