Head-to-Head Comparison · Alternative to Zonka · 🎨 design
Zonka vs OpnForm
A versatile open-source form builder for collecting data, managing submissions, and integrating with your favorite tools. Here is how OpnForm ($0/mo open source) stacks up against Zonka ($20/mo) across cost, hosting, data privacy, and real-world trade-offs.
OpnForm is a verified AGPL-3.0-licensed open-source replacement for Zonka. Switching from Zonka ($20/mo) saves $240/yr per solo seat, or $1,200/yr for a 5-person team. Deployment: Runs on Self-host.
The catch: OpnForm gives you open-source forms and self-hosted responses, but the free self-hosted workspace is limited to two users and its design controls are less polished than Fomr's.
Zonka vs OpnForm Specifications
facts verified 2026-11-07
| Dimension | Zonka (Paid) | OpnForm (Replacement) |
|---|---|---|
| Monthly Price | $20 / mo | $0 / mo |
| 1-Year Cost (1 seat) | $240 / yr | $0 / yr (Save $240) |
| 1-Year Cost (5 seats) | $1,200 / yr | $0 / yr (Save $1,200) |
| 1-Year Cost (10 seats) | $2,400 / yr | $0 / yr (Save $2,400) |
| Source & License | Proprietary SaaS | open source AGPL-3.0 |
| Where It Runs | Vendor Cloud | Self-host (your server) |
| Platforms | Web / Cloud | webself-hosteddocker to self-host |
| GitHub Stars | — | ★ 4k (active nov 2026) |
Deep Dive: Switching from Zonka to OpnForm
Trade-offs, installation & data architecture
What you trade away
OpnForm gives you open-source forms and self-hosted responses, but the free self-hosted workspace is limited to two users and its design controls are less polished than Fomr's.
How to deploy OpnForm
Hosted signup, or the production Docker deployment
What it takes to run
Self-hosting requires Docker, a database, a public domain/TLS and mail/storage configuration; the free self-hosted edition allows two workspace users.
Where your data lives
Hosted data lives in OpnForm Cloud; self-hosted forms and submissions live in MySQL or PostgreSQL, with uploaded files on configured local or object storage.
Why fork OpnForm instead of vibe-coding a Zonka clone?
Instead of paying recurring SaaS fees for Zonka or rebuilding it from scratch, deploy one of the 7 battle-tested open-source alternatives like Formbricks.
Zonka vs OpnForm FAQ
Is OpnForm a good free alternative to Zonka?+
Yes. OpnForm is a verified open-source (AGPL-3.0) replacement for Zonka. A versatile open-source form builder for collecting data, managing submissions, and integrating with your favorite tools.
What is the catch when switching from Zonka to OpnForm?+
OpnForm gives you open-source forms and self-hosted responses, but the free self-hosted workspace is limited to two users and its design controls are less polished than Fomr's.
How much do you save switching from Zonka to OpnForm?+
Zonka costs $20/mo ($240/yr) per seat, whereas OpnForm is $0/mo. Switching saves $240/yr for a solo user, $1,200/yr for a 5-person team, and $2,400/yr for a 10-person team.
How do I install or self-host OpnForm instead of Zonka?+
Install: Hosted signup, or the production Docker deployment. Setup: Self-hosting requires Docker, a database, a public domain/TLS and mail/storage configuration; the free self-hosted edition allows two workspace users.
