Head-to-Head Comparison · Alternative to Constant Contact · 📮 newsletters
Constant Contact vs Keila
Self-hosted newsletters and signup forms with a real visual editor; SMTP setup replaces onboarding calls. Here is how Keila ($0/mo open source) stacks up against Constant Contact ($8.40/mo) across cost, hosting, data privacy, and real-world trade-offs.
Constant Contact vs Keila Specification Matrix
facts verified 2026-08-10
| Dimension | Constant Contact (Paid) | Keila (Replacement) |
|---|---|---|
| Monthly Price | $8.40 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $101 / yr | $0 / yr (Save $101) |
| 1-Year Cost (5 seats) | $504 / yr | $0 / yr (Save $504) |
| 1-Year Cost (10 seats) | $1,008 / yr | $0 / yr (Save $1,008) |
| Source & License | Proprietary SaaS | open source AGPL-3.0+ |
| Where It Runs | Vendor Cloud | Local or hosted (your machine or their cloud) |
| Platforms | Web / Cloud | webself-hosteddocker to self-host |
| GitHub Stars | — | ★ 2.2k (active aug 2026) |
Deep Dive: Switching from Constant Contact to Keila
Trade-offs, installation & data architecture
What you trade away
Keila replaces newsletters and signup forms, but SMTP authentication, deliverability, server maintenance, backups, and upgrades replace Constant Contact's guided hosted setup.
How to deploy Keila
Keila Cloud signup or Docker image plus PostgreSQL
What it takes to run
Self-hosting requires Docker, PostgreSQL, a public HTTPS domain, and credentials for SMTP, SES, SendGrid, Mailgun, or Postmark.
Where your data lives
Self-hosted subscribers, campaigns, and job state live in PostgreSQL; uploaded campaign assets live on persistent server storage.
Why fork Keila instead of vibe-coding a Constant Contact clone?
The core loop is buildable, but a dependable replacement becomes a real weekend or multi-day project. For Constant Contact, send simple newsletters, manage contacts, and publish signup forms. The hard boundary is deliverability, templates, event and social tools, integrations, and support, plus deliverability, growth network, and integrations.
Constant Contact vs Keila FAQ
Is Keila a good free alternative to Constant Contact?+
Yes. Keila is a verified open-source (AGPL-3.0+) replacement for Constant Contact. Self-hosted newsletters and signup forms with a real visual editor; SMTP setup replaces onboarding calls.
What is the catch when switching from Constant Contact to Keila?+
Keila replaces newsletters and signup forms, but SMTP authentication, deliverability, server maintenance, backups, and upgrades replace Constant Contact's guided hosted setup.
How much do you save switching from Constant Contact to Keila?+
Constant Contact costs $8.40/mo ($101/yr) per seat, whereas Keila is $0/mo. Switching saves $101/yr for a solo user, $504/yr for a 5-person team, and $1,008/yr for a 10-person team.
How do I install or self-host Keila instead of Constant Contact?+
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.
