ConvertKit alternatives that don't cost more as you grow
ConvertKit charges per subscriber. Listmonk doesn't. Thousands of creators are moving to open-source email for full control and predictable costs.
Why creators are leaving ConvertKit
ConvertKit starts at $39 per month. That's fine at 1,000 subscribers. But every subscriber costs money. At 5,000 subscribers your bill climbs. At 10,000, it climbs again.
The platform calls this "list growth pricing." Users call it the moment they start shopping for alternatives.
The math gets worse with volume. ConvertKit's pricing structure means you're penalized for growing. Build a successful newsletter? Your costs rise. Get featured in a publication? Your costs rise. You're trapped. Switching costs time. Building a custom solution costs engineering. So you stay and pay.
There's another option: open-source email tools like Listmonk run on your own infrastructure. No per-subscriber fees. No rising bills. Just predictable hosting costs that actually get cheaper per email as you grow.
Most open-source email tools require DevOps skill to run. You need to understand Docker, servers, backups, SSL certificates. That's a barrier for most creators and small publishers. Listmonk on Opsily removes that friction: you get the open-source benefits (full code ownership, no vendor lock-in, GDPR control) without managing infrastructure yourself. It's the best of both worlds: the freedom of self-hosting with the simplicity of a managed service.
ConvertKit vs. Listmonk: Side by side
Here's what changes when you switch to open-source email.
Other ConvertKit alternatives worth considering
No single platform works for everyone, but the SERP data shows these are the most-recommended ConvertKit alternatives. Each has a different strength.
MailerLite ($12–25/month, 250–unlimited subscribers): The most frequently recommended direct replacement for ConvertKit on comparison sites. Unified feature set across all tiers, no gatekeeping by plan. Free tier available. Clean UI, good documentation, responsive support. Best for creators and small publishers who want a SaaS but don't want to overpay per subscriber. Risk: Still a SaaS, so vendor lock-in risk (lower than ConvertKit, but real).
Brevo ($9+/month based on email volume, free tier available): The cheapest entry point in the market. Includes SMS, WhatsApp, and CRM in base features. Pricing scales with email volume, not subscribers. Best for multi-channel marketing (email + SMS). Risk: Complexity. It's an enterprise tool dressed in consumer UI — the feature set is deep but harder to navigate.
Beehiiv (implied paid tier, no free option): Built for newsletter growth, not general marketing. Includes referral programs, embedded ad networks, and paid subscription infrastructure. Best if monetizing your newsletter is a goal. Risk: Feature scope is narrow if you need standard automation or SMS.
Flodesk (flat monthly rate): Pricing never scales with list size, ever. High-aesthetic templates out of the box. Best for design-focused creators. Risk: Limited automation, fewer integrations than MailerLite or Brevo.
Each has trade-offs. MailerLite feels safest if you want SaaS. Brevo wins on cost. Flodesk on aesthetics. But none offer what Listmonk does: full code ownership, no per-subscriber pricing, and complete data control.
Why choose Listmonk on Opsily
Build your ConvertKit alternative. Open-source freedom without the DevOps headache.
No servers to manage
Opsily handles Docker, backups, updates, and infrastructure. You log in and send email. No SSH, no terminal, no deployment stress. That's the managed layer that matters.
Always up to date
New Listmonk features roll out without you doing anything. Security patches land automatically. You're not stuck on a year-old version because upgrading looks scary.
Your data stays in the EU
All subscriber data and campaigns live in German data centers. No data brokering, no Cambridge Analytica risks. Your audience data never leaves GDPR jurisdiction.
Built for teams who need reliability
Getting started with Listmonk on Opsily
From zero to sending campaigns in minutes, not days.
Sign up with email, choose a plan, add payment. No credit card upfront for trials.
One click. Opsily provisions your isolated instance, installs Listmonk, and gives you a login. Takes about 3 minutes.
Point Listmonk to your email provider (Mailgun, Sendgrid, AWS SES, or your own). Configure SPF/DKIM/DMARC. Deliverability in your hands.
Sign up with email, choose a plan, add payment. No credit card upfront for trials.
One click. Opsily provisions your isolated instance, installs Listmonk, and gives you a login. Takes about 3 minutes.
Point Listmonk to your email provider (Mailgun, Sendgrid, AWS SES, or your own). Configure SPF/DKIM/DMARC. Deliverability in your hands.
Create your Opsily account
Sign up with email, choose a plan, add payment. No credit card upfront for trials.
Deploy Listmonk
One click. Opsily provisions your isolated instance, installs Listmonk, and gives you a login. Takes about 3 minutes.
Set up your SMTP
Point Listmonk to your email provider (Mailgun, Sendgrid, AWS SES, or your own). Configure SPF/DKIM/DMARC. Deliverability in your hands.
Migrate subscribers and send
Upload your subscriber list via CSV. Create your first campaign. Send. Listmonk has native import tools and a clean UI.
Managed Listmonk pricing
All plans include automatic updates, nightly backups, EU data residency, and full API access. GDPR-compliant infrastructure, no surprise bills.
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Security and data control you can trust
No lock-in. No proprietary fine print. Your email infrastructure, your rules.
GDPR compliant
Your subscriber and campaign data is processed and stored in full GDPR compliance. No data brokering or US cloud jurisdiction.
German data center security
Data infrastructure hosted in German data centers. The hosting provider maintains certification at enterprise security standards.
Open source code
Listmonk is AGPL v3 licensed. Full source code on GitHub. No black boxes, no hidden algorithms, no surprise feature changes.
100% data ownership
Export your subscriber list, campaigns, and analytics anytime. Delete everything with one API call. Portability is built in.
Automated backups
Nightly encrypted backups stored separately. Disaster recovery included. Your data is recoverable even in worst-case scenarios.
Common questions about switching to Listmonk
ConvertKit lets you export your subscriber list as CSV. Listmonk has a native CSV importer in the dashboard. Upload your list, map the fields (name, email, custom attributes), and you're done. ConvertKit campaigns don't migrate, so you'll recreate those as Listmonk campaigns. If you have hundreds of campaigns, this takes time. Most users recreate their top-performing campaigns and archive the rest.
Stop paying per subscriber
Start your Listmonk instance on Opsily. Full control. Predictable costs. No vendor lock-in.