can i fork it?
πŸ“ˆ seo & marketing

Kit (ConvertKit) costs $49/mo.
These cost $0.

5 free alternatives to Kit (ConvertKit), checked for license, recent activity and real adoption. Each one tells you the catch, so you can switch with your eyes open.

⚑ Quick Verdict · 2027 Guide

The top-rated free, open-source replacement for Kit (ConvertKit) is Listmonk (AGPL-3.0 Open Source). Across this category, 4 self-hostable tools are available (including Listmonk and Notifuse). Switching a 5-person team saves up to $2,940/year compared to Kit (ConvertKit)'s $49/mo subscription.

The catch: listmonk is fast and explicit about subscriber states, but it lacks Brevo's managed deliverability, broad automation suite, CRM-style contact tools, and polished visual workflow builder.

Kit (ConvertKit) vs Free Alternatives

Quick side-by-side comparison Β· $0/mo vs $49/mo

AlternativeTypeLicenseWhere It RunsStarsHead-to-Head
Listmonkopen sourceAGPL-3.0Self-hostβ˜… 24.2kKit (ConvertKit) vs Listmonk β†’
Notifuseopen sourceAGPL-3.0Self-hostβ˜… 2.3kKit (ConvertKit) vs Notifuse β†’
MailCheapopen sourceOpen SourceSelf-hostβ˜… 1.7kKit (ConvertKit) vs MailCheap β†’
Keilaopen sourceAGPL-3.0+Self-hostβ˜… 2.3kKit (ConvertKit) vs Keila β†’
Hyvor Postopen sourceOpen SourceLocalβ˜… 34Kit (ConvertKit) vs Hyvor Post β†’

The picks

5 open source Β· ranked by fit

  1. 01

    Listmonk

    open sourceAGPL-3.0Self-host
    24.2knov 2026

    Send email campaigns and transactional messages to millions of subscribers with a single high-performance binary backed by Postgres.

    The catch vs Kit (ConvertKit)

    listmonk is fast and explicit about subscriber states, but it lacks Brevo's managed deliverability, broad automation suite, CRM-style contact tools, and polished visual workflow builder.

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Docker Compose or a single release binary plus PostgreSQL
    setup
    You still need a PostgreSQL database and a trustworthy SMTP/API sender with authenticated DNS.
    your data
    Subscribers, campaigns, templates, and analytics live in a PostgreSQL database on your server.
    checked
    2026-11-07
  2. 02

    Notifuse

    open sourceAGPL-3.0Self-host
    2.3knov 2026

    Free open-source email platform for newsletters and transactional emails. Self-hosted alternative to Mailchimp with visual MJML editor, A/B testing, and analytics.

    The catch vs Kit (ConvertKit)

    Notifuse is newer and narrower, without ActiveCampaign's mature CRM, predictive features, and thousand-plus integration ecosystem.

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Hosted signup, or one application container plus PostgreSQL for self-hosting
    setup
    Self-hosting still needs Docker, PostgreSQL, a public HTTPS endpoint, an SMTP or API sending provider, and correctly authenticated sending domains.
    your data
    Self-hosted contacts, campaigns, automations, and events live in PostgreSQL; files can use S3-compatible storage, and the configured email provider receives message payloads. Hosted data lives in Notifuse's cloud.
    checked
    2026-11-07
  3. 03

    MailCheap

    open sourceOpen SourceSelf-host
    1.7knov 2026

    Newsletter platform billed by emails sent, not list size, with scheduling, a public website, AI agent access and deliverability tools from $19 a month.

    The catch vs Kit (ConvertKit)

    Requires self-hosting setup, updates, and server maintenance compared to managed Kit (ConvertKit).

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Clone https://github.com/marclou/mailcheap or deploy with Docker Compose
    setup
    Deploy via Docker or binary release from GitHub and configure environment variables.
    your data
    All application data and configuration live on your own server or local database.
    checked
    2026-11-07
  4. 04

    Keila

    open sourceAGPL-3.0+Self-host
    2.3knov 2026

    Self-hosted newsletter platform with powerful features, data protection, and full control over your mailing lists and campaigns.

    The catch vs Kit (ConvertKit)

    Keila gives you a friendly campaign editor and tracking, but delivery reputation, SMTP configuration, backups, and upgrades become your responsibility rather than Campaign Monitor's.

    Install, platforms & data +
    platforms
    webself-hosteddocker to self-host
    install
    Keila Cloud signup or Docker image plus PostgreSQL
    setup
    Self-hosting requires Docker, PostgreSQL, a public HTTPS domain, and credentials for SMTP, SES, SendGrid, Mailgun, or Postmark.
    your data
    Self-hosted subscribers, campaigns, and job state live in PostgreSQL; uploaded campaign assets live on persistent server storage.
    checked
    2026-11-07
  5. 05

    Hyvor Post

    open sourceOpen SourceLocal
    34nov 2026

    Create and send newsletters with complete privacy protection. No tracking, no data collection - just simple, clean email delivery with customizable templates and archive sites.

    The catch vs Kit (ConvertKit)

    Community-driven open source project without dedicated enterprise SLAs.

    Install, platforms & data +
    platforms
    desktopcross-platformone-click install
    install
    Clone https://github.com/hyvor/post or deploy with Docker Compose
    setup
    Download the native package or installer for your operating system.
    your data
    All application data lives locally on your own machine.
    checked
    2026-11-07

Kit (ConvertKit) Head-to-Head Comparisons (2027)

Side-by-side trade-off breakdowns Β· 5 free alternatives

Frequently Asked Questions

Direct answers Β· Kit (ConvertKit) open-source replacements

What is the best free alternative to Kit (ConvertKit)?+

The top free alternative to Kit (ConvertKit) is Listmonk (open source, AGPL-3.0). Send email campaigns and transactional messages to millions of subscribers with a single high-performance binary backed by Postgres. Other popular Kit (ConvertKit) replacements include Notifuse, MailCheap, Keila.

Can I self-host a free replacement for Kit (ConvertKit)?+

Yes. Of the 5 free alternatives to Kit (ConvertKit), 4 can be self-hosted on your own server or local machine: Listmonk (AGPL-3.0), Notifuse (AGPL-3.0), MailCheap (Open Source), Keila (AGPL-3.0+).

How much does switching from Kit (ConvertKit) to a free alternative save?+

Kit (ConvertKit) starts at $49/month per seat ($588/year). Switching a 5-person team to a free alternative like Listmonk saves $2,940 per year in software subscription fees.

Should I vibe-code or build my own Kit (ConvertKit) clone from scratch?+

Our build verdict for Kit (ConvertKit) is NO (use a free alternative, save the tokens). Instead of paying recurring SaaS fees for Kit (ConvertKit) or rebuilding it from scratch, deploy one of the 5 battle-tested open-source alternatives like Listmonk.

What is the catch when switching from Kit (ConvertKit) to Listmonk?+

listmonk is fast and explicit about subscriber states, but it lacks Brevo's managed deliverability, broad automation suite, CRM-style contact tools, and polished visual workflow builder.