The Best Form API Software in 2026
We researched Form API Software from official websites, including pricing pages, plan tables, and product documentation. Products were ranked on their core form infrastructure capabilities, value for money, and verified features such as deployment options, submission limits, validation, workflows, and developer controls for building and processing forms.
Our top picks
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Top ranked
Form.io#1 of 259.3/10A broad, API-first form platform for teams that need control over data and deployment.
30-day trial
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Runner-up
Endatix#2 of 259.1/10A flexible form API with powerful workflows, but hosted plans start at $360 per month.
Free plan
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Top-ranked free plan
Feathery#3 of 258.9/10A flexible form API platform for embedded, logic-heavy data intake.
Free plan · pricing on request
Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.
The full ranking 25 tools, best first
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Best forAPI-first teams needing self-hosting
A broad, API-first form platform for teams that need control over data and deployment.
- File uploads
9.3/10★★★★★Visit Form.io -
Best forEnterprise teams needing a flexible form API
A flexible form API with powerful workflows, but hosted plans start at $360 per month.
- Electronic signatures
- Conditional logic
- Webhooks
9.1/10★★★★★Visit Endatix -
Best forProduct teams embedding advanced forms
A flexible form API platform for embedded, logic-heavy data intake.
- File uploads
Free plan · pricing on request Our Feathery verdict → Visit FeatheryFor vendors Sponsor this spot · #3 · $79/mo →8.9/10★★★★☆Visit Feathery -
Best forBudget-conscious teams wanting self-hosting
A flexible form API with a free tier, payments, integrations, and self-hosting.
- File uploads
8.8/10★★★★☆Visit OpnForm -
Best forSmall teams needing low-cost API endpoints
A low-cost form API with hosted forms, uploads, logic, webhooks, and integrations.
- Conditional logic
- Webhooks
- File uploads
Free plan · 14-day trial Our Basin verdict → Visit BasinFor vendors Sponsor this spot · #5 · $59/mo →8.7/10★★★★☆Visit Basin -
Best forDevelopers embedding self-hosted form logic
A self-hosted toolkit for teams embedding configurable forms into web applications.
- Conditional logic
- File uploads
8.6/10★★★★☆Visit SurveyJS -
Best forGrowth teams optimizing multi-step conversion forms
A flexible form API platform with strong conversion features and a costly Pro tier.
- File uploads
8.5/10★★★★☆Visit Formsort -
Best forTeams prioritizing integrations and polished forms
A polished form builder with broad integrations, payments, and API access on higher plans.
- File uploads
8.4/10★★★★☆Visit Paperform -
Best forMobile-oriented teams needing rich form features
A mobile-friendly form builder with broad features, integrations, and a five-form free tier.
- File uploads
8.3/10★★★★☆Visit forms.app -
Best forTeams needing quizzes, payments, and integrations
A flexible form builder with quizzes, payments, embeds, analytics, and integrations.
- File uploads
8.2/10★★★★☆Visit Formester -
Best forMature teams needing traditional form workflows
A mature form builder combining conditional logic, payments, workflows, and API access.
- File uploads
8.1/10★★★★☆Visit Formsite -
Best forTeams needing AI forms and validation workflows
A flexible form API for dynamic workflows, validation, and submission handling.
- Conditional logic
- Webhooks
8.0/10★★★★☆Visit Formidable -
Best forLow-volume sites needing conditional routing
A practical form backend for low-volume sites that need conditional routing.
- Conditional logic
- Webhooks
- File uploads
7.9/10★★★★☆Visit HeadlessForms -
Best forDevelopers needing reliable hosted endpoints
A focused hosted form backend with storage, routing, webhooks, and workflow integrations.
7.8/10★★★★☆Visit Formspree -
Best forDevelopers wanting inexpensive HTML endpoints
A low-cost form backend for developers who want endpoints without server-side handling.
- Webhooks
- File uploads
7.7/10★★★★☆Visit FormBackend -
Best forTeams needing signed webhooks and retention controls
A headless form backend with signed webhooks, uploads, analytics, and retention controls.
- File uploads
7.6/10★★★★☆Visit Forminit -
Best forSmall sites needing simple submission handling
A practical hosted form API for small sites that need straightforward submission handling.
- Webhooks
- File uploads
7.5/10★★★★☆Visit Formcarry -
Best forLow-cost teams wanting a visual endpoint builder
A low-cost visual form endpoint with practical integrations and workflow limits.
- File uploads
7.4/10★★★★☆Visit FormKeep -
Best forTeams needing signatures and MCP access
A capable form builder for teams that need signatures and programmable access.
- File uploads
7.3/10★★★★☆Visit Formly -
Best forLarge enterprises needing governed self-hosted forms
A deep form platform for enterprises that need control, integrations, and self-hosting.
7.2/10★★★★☆Visit Orbeon Forms -
Best forOrganizations needing workflow-heavy online forms
A workflow-focused form platform for public-sector service processes.
- Conditional logic
7.1/10★★★★☆Visit Granicus -
Best forTeams wanting a simple one-time upgrade
A focused form backend with generous one-time capacity and practical routing tools.
- Webhooks
7.0/10★★★★☆Visit Formspark -
Best forHigh-volume teams needing free submissions
A focused hosted form API for static sites, with generous submission limits and useful integrations.
- Webhooks
- File uploads
6.8/10★★★☆☆Visit Web3Forms -
Best forUsers needing a completely free endpoint
A free, no-registration form backend for email delivery, webhooks, uploads, and archives.
- Webhooks
- File uploads
6.6/10★★★☆☆Visit FormSubmit -
Best forSalesforce-centric enterprise form programs
A strong fit for Salesforce teams needing connected forms, automation, and approvals.
- Conditional logic
- File uploads
5.5/10★★★☆☆Visit FormTitan
No tools match those filters.
Compare at a glance
| # | Tool | Free plan | Paid from | Score |
|---|---|---|---|---|
| 1 | Form.io | No | $2,640/seat/yr | 9.3 |
| 2 | Endatix | Yes | $360/mo | 9.1 |
| 3 | Feathery | Yes | 8.9 | |
| 4 | OpnForm | Yes | $25/mo | 8.8 |
| 5 | Basin | Yes | $12.50/mo | 8.7 |
| 6 | SurveyJS | Yes | 8.6 | |
| 7 | Formsort | Yes | $279/mo | 8.5 |
| 8 | Paperform | Yes | $24/mo | 8.4 |
| 9 | forms.app | Yes | $19/mo | 8.3 |
| 10 | Formester | Yes | $12/mo | 8.2 |
| 11 | Formsite | Yes | 8.1 | |
| 12 | Formidable | Yes | $15/mo | 8.0 |
| 13 | HeadlessForms | Yes | $3.75/mo | 7.9 |
| 14 | Formspree | Yes | $10/mo | 7.8 |
| 15 | FormBackend | Yes | $5/mo | 7.7 |
| 16 | Forminit | Yes | $15.83/mo | 7.6 |
| 17 | Formcarry | Yes | $5/mo | 7.5 |
| 18 | FormKeep | Yes | $4.99/mo | 7.4 |
| 19 | Formly | No | $24/mo | 7.3 |
| 20 | Orbeon Forms | $1,300/device/yr | 7.2 | |
| 21 | Forms & Workflow (OpenForms) | 7.1 | ||
| 22 | Formspark | Yes | 7.0 | |
| 23 | Web3Forms | Yes | 6.8 | |
| 24 | FormSubmit | Yes | Free | 6.6 |
| 25 | FormTitan | 5.5 |
Head-to-head All 28 comparisons →
- Form.io vs Endatix
- Form.io vs Feathery
- Form.io vs OpnForm
- Form.io vs Basin
- Form.io vs SurveyJS
- Form.io vs Formsort
- Form.io vs Paperform
- Endatix vs Feathery
- Endatix vs OpnForm
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How we rank form API software
Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Last updated · How we research and update