Head-to-Head Comparison · Alternative to Klaviyo · 📈 seo & marketing
Klaviyo vs Sendportal
Open-source email marketing platform offering unlimited subscribers, campaigns, and workspaces. Self-hosted solution with powerful API and beautiful interface. Here is how Sendportal ($0/mo open source) stacks up against Klaviyo ($49/mo) across cost, hosting, data privacy, and real-world trade-offs.
Sendportal is a verified Open Source-licensed open-source replacement for Klaviyo. Switching from Klaviyo ($49/mo) saves $588/yr per solo seat, or $2,940/yr for a 5-person team. Deployment: Runs on Self-host.
The catch: Requires self-hosting setup, updates, and server maintenance compared to managed Klaviyo.
Sendportal
$0.00/mo · Open Source
Klaviyo vs Sendportal Specifications
facts verified 2026-11-07
| Dimension | Klaviyo (Paid) | Sendportal (Replacement) |
|---|---|---|
| Monthly Price | $49 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $588 / yr | $0 / yr (Save $588) |
| 1-Year Cost (5 seats) | $2,940 / yr | $0 / yr (Save $2,940) |
| 1-Year Cost (10 seats) | $5,880 / yr | $0 / yr (Save $5,880) |
| Source & License | Proprietary SaaS | open source Open Source |
| Where It Runs | Vendor Cloud | Self-host (your server) |
| Platforms | Web / Cloud | webself-hosteddocker to self-host |
| GitHub Stars | — | ★ 2.2k (active nov 2026) |
Deep Dive: Switching from Klaviyo to Sendportal
Trade-offs, installation & data architecture
What you trade away
Requires self-hosting setup, updates, and server maintenance compared to managed Klaviyo.
How to deploy Sendportal
Clone https://github.com/mettle/sendportal or deploy with Docker Compose
What it takes to run
Deploy via Docker or binary release from GitHub and configure environment variables.
Where your data lives
All application data and configuration live on your own server or local database.
Why fork Sendportal instead of vibe-coding a Klaviyo clone?
Instead of paying recurring SaaS fees for Klaviyo or rebuilding it from scratch, deploy one of the 5 battle-tested open-source alternatives like Listmonk.
Klaviyo vs Sendportal FAQ
Is Sendportal a good free alternative to Klaviyo?+
Yes. Sendportal is a verified open-source (Open Source) replacement for Klaviyo. Open-source email marketing platform offering unlimited subscribers, campaigns, and workspaces. Self-hosted solution with powerful API and beautiful interface.
What is the catch when switching from Klaviyo to Sendportal?+
Requires self-hosting setup, updates, and server maintenance compared to managed Klaviyo.
How much do you save switching from Klaviyo to Sendportal?+
Klaviyo costs $49/mo ($588/yr) per seat, whereas Sendportal is $0/mo. Switching saves $588/yr for a solo user, $2,940/yr for a 5-person team, and $5,880/yr for a 10-person team.
How do I install or self-host Sendportal instead of Klaviyo?+
Install: Clone https://github.com/mettle/sendportal or deploy with Docker Compose. Setup: Deploy via Docker or binary release from GitHub and configure environment variables.
