Form & Survey Builders
4.4/5.0
VerifiedFreemiumLast technical review:
Markdown for AI (.md)

OpnForm

Open-source online form builder with unlimited responses and flexible self-hosting options.

Pricing

$0/mo

Freemium
Score

4.4/5

Certifications
1
Last technical review
2026-11-02
Available plansVisit website (opens in a new tab)

Technical Overview

OpnForm is an open-source online form builder designed to create forms, surveys, and workflows without response caps or vendor lock-in. It provides cloud deployment, EU hosting, or full self-hosting. Built for teams and developers seeking data ownership, conditional logic, and custom branding through a modern architecture.

Analyst Evaluation: Pros and Limitations

Verified Advantages

  • Unlimited responses even on the free plan with no per-submission charges.
  • Open-source codebase with extensive self-hosting capabilities.
  • Supports both classic single-page layouts and conversational Typeform styles.

Technical Considerations

  • Fewer native advanced integrations compared to legacy incumbents.
  • Removing platform branding requires upgrading to a paid tier.

Technical Capabilities & Features

5/7
Included:REST & GraphQL API
Not available:SSO / SAML Authentication
Included:Self-Hosted Option
Included:Full Data Export
Included:Role-Based Access Control (RBAC)
Included:Custom Domains & SSL
Not available:Immutable Audit Logs
Scorecard
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Technical Scorecard: OpnForm

85/100
DX & Tech Documentation
Excellent
90/100
Pricing Fairness
Excellent
95/100
Security & Governance
Excellent
80/100
Data Portability & Sovereignty
Excellent
85/100
Performance & Reliability
Favorable
75/100

Time to Value & Fit by Segment: OpnForm

Estimated Time-to-Value< 1 hour (Immediate)

Near-instantaneous deployment with minimal technical friction.

Learning CurveLow (Intuitive)

Rapid onboarding for developers without prior training required.

Fit Index by Organization Size

Startup & Agile Teams1 to 50 members
90%
Mid-Market & Scaleup50 to 500 members
80%
Corporate Enterprise500+ members
70%
Pricing & TCO
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Pricing

$0.00/mo

Model: FREEMIUM.

Free Tier Verification:

  • No credit card required
  • Commercial use allowed
  • Unlimited usage with no expiration
  • Includes watermark on free tier
Get OpnForm (opens in a new tab)

Billing Risks & Hidden Clauses: OpnForm

Free Tier Limits:

Respuestas ilimitadas en la versión gratuita con funciones básicas de diseño.

Audited Billing Critical Points:
  • Paid plans are required to completely remove OpnForm branding from public forms.
Total Cost of Ownership (TCO) Projection: OpnForm$0.00/mo
Deterministic cost estimation at 12 and 36 months based on team size, including SSO tax premiums and annual prepay discounts.
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Indie / Solo (1 active user)

Solo developer or independent technical founder.

Base Monthly Cost
$12/month
1 active user
12-Month Investment
$122/year
Includes ~15% savings via annual billing
3-Year TCO Projection (36m)
$366total
Consolidated software licensing expenditure

Estimated Self-Hosted VPS + DevOps Cost

Break-Even Point: Profitable starting at 3 active users

Calculated infrastructure: VPS 1 vCPU / 2GB RAM (~$5) + 0.5h DevOps/mes ($20)

Annual VPS + DevOps Cost$300/year
Differential vs SaaS LicensingSaaS is $178/year
Startup (10 active users)

Agile engineering team in validation and early traction stage.

Base Monthly Cost
$120/month
10 active users
12-Month Investment
$1,224/year
Includes ~15% savings via annual billing
3-Year TCO Projection (36m)
$3,672total
Consolidated software licensing expenditure

Estimated Self-Hosted VPS + DevOps Cost

Break-Even Point: Profitable starting at 10 active users

Calculated infrastructure: VPS 2 vCPU / 8GB RAM (~$15) + 2h DevOps/mes ($80)

Annual VPS + DevOps Cost$1,140/year
Differential vs SaaS LicensingSavings of $84/year
Growth (25 active users)

Scaling company with team governance and granular access control requirements.

Base Monthly Cost
$300/month
25 active users
12-Month Investment
$3,060/year
Includes ~15% savings via annual billing
3-Year TCO Projection (36m)
$9,180total
Consolidated software licensing expenditure

Estimated Self-Hosted VPS + DevOps Cost

Break-Even Point: Profitable starting at 28 active users

Calculated infrastructure: Cluster VPS 4 vCPU / 16GB RAM (~$45) + 6h DevOps/mes ($240)

Annual VPS + DevOps Cost$3,420/year
Differential vs SaaS LicensingSaaS is $360/year
Scaleup (100 active users)

Established organization with enterprise security policies and mandatory SAML/SSO.

Base Monthly Cost
$1,200/month
100 active users
12-Month Investment
$12,240/year
Includes ~15% savings via annual billing
3-Year TCO Projection (36m)
$36,720total
Consolidated software licensing expenditure

Estimated Self-Hosted VPS + DevOps Cost

Break-Even Point: Profitable starting at 78 active users

Calculated infrastructure: Infraestructura HA redundante + Backups (~$150) + 16h DevOps/mes ($640)

Annual VPS + DevOps Cost$9,480/year
Differential vs SaaS LicensingSavings of $2,760/year
Usage Surcharges & Bill Shock Simulator: OpnFormWhat usage costs as you scale
Detect overage penalties before they impact engineering budget.
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Prototype / MVP (10 GB)

Included base quota in plan: 5 GB.
Low Risk / Predictable Bill
Base Monthly Rate
$20/mo
Fixed subscription or contracted tier
Overage Penalty
+$1/month extra
Variable surcharge for consumption above plan quota
Estimated Monthly Invoice
$21/mo
Total monthly cost before taxes
Technical Mitigation Recommendation:

Suitable for development; verify concurrent connection limits.

Base Production (50 GB)

Included base quota in plan: 5 GB.
Low Risk / Predictable Bill
Base Monthly Rate
$20/mo
Fixed subscription or contracted tier
Overage Penalty
+$8/month extra
Variable surcharge for consumption above plan quota
Estimated Monthly Invoice
$28/mo
Total monthly cost before taxes
Technical Mitigation Recommendation:

Implement table compression policies and temporal partitioning.

Active Growth (250 GB)

Included base quota in plan: 5 GB.
High Risk / Accelerated Overages
Base Monthly Rate
$20/mo
Fixed subscription or contracted tier
Overage Penalty
+$44/month extra
Variable surcharge for consumption above plan quota
Estimated Monthly Invoice
$64/mo
Total monthly cost before taxes
Technical Mitigation Recommendation:

Offload cold backups to standard object storage (S3).

Large Scale (1.000 GB (1 TB))

Included base quota in plan: 5 GB.
Critical Risk / Severe Bill Shock
Base Monthly Rate
$20/mo
Fixed subscription or contracted tier
Overage Penalty
+$179/month extra
Variable surcharge for consumption above plan quota
Estimated Monthly Invoice
$199/mo
Total monthly cost before taxes
Technical Mitigation Recommendation:

Migrate to dedicated instance or self-hosted cluster to curtail I/O fees.

Procurement Strategy & Discounts: OpnFormB2B Negotiation Playbook
Corporate executive level with highest authority to approve budgetary exceptions.
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Fair Market Price & B2B Procurement Benchmark

Non-renewal notice: 30 days before expirationMedian achieved discount: -12%
Public List Price
Custom / Contact
100% baseline
Audited Market Average
-12% median
~88% of list price
Optimized Target Price
-20% target
Max achievable discount (Q4 / multi-year): -20%

Verified Tactical Savings Levers

  • Annual Upfront PrepayUp to -15%

    Consolidated discount for upfront annual billing versus monthly rate.

Security & Data Exit
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Compliance & Security Standards: OpnForm

SOC 2 Type IINot reported
ISO 27001Not reported
GDPR / RGPDAudited
HIPAANot reported
PCI-DSSNot reported
Jurisdiction & Legal Sovereignty
🇫🇷France [FR]Immune to US CLOUD Act (EU Sovereign)GDPR DPA Available
SSO Availability (SAML Enterprise)
No SSO Documented
Data Residency
EUSELF_HOSTED
AI Privacy Policy
Not evaluated
Data Liberation & Migration Runbook: OpnFormJSON · CSV
Actionable escape runbook and credential export guarantees to mitigate vendor lock-in.
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Supported Structured Export Formats
JSONCSV
Password Hash Portability
Exportable Hashes (Bcrypt / Argon2): Zero Forced Retention

Allows extracting password hashes in standard formats to migrate without forcing user resets.

CLI Command / Rescue Endpoint
https://opnform.com/api
Exit Protocol & Migration Notes

Permite la exportación de datos de formularios y respuestas recopiladas mediante llamadas a la API o respaldos de base de datos en instancias autoalojadas.

Deployment & Infrastructure Requirements: OpnFormOther
Hardware specs and Docker directives to run on local servers, dedicated VPS, or Kubernetes without telemetry leak to the cloud.
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Minimum Memory1 GB RAM (Recommended)
Compute CPU1 vCPU
Runtime / LanguagePHP
Code LicenseOther
Docker CLI Directive
docker run -d --name opnform -p 8080:8080 opnform:latest
Companion Services & Dependencies:
PostgreSQL 15+Redis 7+
Community & Repository
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Technical Reputation of OpnForm

83/100 Technical Trust

Frequent Praises in Production

  • Unlimited responses even on the free plan with no per-submission charges.
  • Open-source codebase with extensive self-hosting capabilities.
  • Supports both classic single-page layouts and conversational Typeform styles.

Reported Production Frictions

  • Fewer native advanced integrations compared to legacy incumbents.
  • Removing platform branding requires upgrading to a paid tier.
Commercial Treatment & Vendor Lock-in:Self-Service in Dashboard

Cancellation flow is autonomous via billing portal or subscription settings.

Open source repository activity: OpnForm3,948
Stars, forks and release cadence
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Stars3.9k
Forks566
Open Issues28
SPDX LicenseOther
Latest Commit DetectedOct 31, 2026

Frequently Asked Technical Questions (OpnForm)

Does OpnForm offer a permanent free tier?

Yes, OpnForm includes a permanent free tier that allows collecting unlimited responses without hidden quotas on submission volume.

Can the platform be self-hosted on private servers?

Yes, as an open-source software, it allows local deployment or hosting on your own infrastructure to retain complete data ownership.

What form layouts does the platform support?

It allows building forms in a classic single-page format or a multi-step conversational style featuring conditional logic.

Direct Alternatives

All tools in OpnForm
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