Best Form API Software in 2026
Updated
In short: Endatix is ranked #1 of 25 as of 4 October 2026, ahead of Paperform and forms.app. The best-ranked option with a free plan is Paperform. The lowest first paid tier on this page is Formcarry at $0.42/mo.
Form API software helps you gather responses and connect form submissions with other systems. Compared on conditional logic, deployment model, electronic signatures, file uploads, webhooks, monthly submissions, free plans, and paid-from pricing. Endatix and OpnForm open the ranking, followed by Basin, Feathery, and Paperform. Consider what respondents need to provide, whether a form should change based on earlier answers, and whether signatures or uploaded files are part of the process. Deployment choices and monthly submission allowances can shape which options suit your setup; webhooks are another factor when deciding what should happen after a response arrives.
25 form API software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
#1 Endatix Top pick · 7.1 Free plan · $360/mo
#2 Paperform Runner-up · 7.0 Free plan · $4.08/mo
#3 forms.app Also great · 6.9 Free plan · $19/mo
- Free plan apiLinuxmacOSself-hostedWebWindows
- Free plan
- Yes
- Paid from
- 360 /mo
- Deployment model
- hybrid
- Conditional logic
- Yes
- Webhooks
- Yes
RecognisedDocumentedFree planPlatforms$360/mofirst paid tier About EndatixVisit site - Free planFree trial apiWeb
- Free plan
- Yes
- Paid from
- 29 /mo
RecognisedDocumentedFree planPlatforms$4.08/mofirst paid tier About PaperformVisit site - Free plan Web
- Free plan
- Yes
- Paid from
- 19 /mo
RecognisedDocumentedFree planPlatforms$19/mofirst paid tier About forms.appVisit site - Free plan apiself-hostedWeb
- Free plan
- Yes
- Conditional logic
- Yes
RecognisedDocumentedFree planPlatforms - Free plan apiWeb
- Free plan
- Yes
- Paid from
- 3.75 /mo
- Deployment model
- cloud
- Monthly submissions
- 100 /mo
- Conditional logic
- Yes
- Webhooks
- Yes
RecognisedDocumentedFree planPlatforms$1,928/mofirst paid tier About HeadlessFormsVisit site - Free plan apiself-hostedWeb
- Free plan
- Yes
- Paid from
- 25 /mo
RecognisedDocumentedFree planPlatforms$25/mofirst paid tier About OpnFormVisit site - Free planFree trial apiWeb
- Free plan
- Yes
- Paid from
- 12.5 /mo
- Deployment model
- cloud
- Monthly submissions
- 250 /mo
- Conditional logic
- Yes
- Webhooks
- Yes
RecognisedDocumentedFree planPlatforms$1.04/mofirst paid tier About BasinVisit site - Free plan apiWeb
- Free plan
- Yes
- Paid from
- 5 /mo
- Deployment model
- cloud
- Monthly submissions
- 1,000 /mo
- Conditional logic
- No
- Webhooks
- Yes
RecognisedDocumentedFree planPlatforms$5/mofirst paid tier About FormBackendVisit site - Free plan apiWeb
- Free plan
- Yes
- Paid from
- 5 /mo
- Deployment model
- cloud
- Monthly submissions
- 500 /mo
- Webhooks
- Yes
RecognisedDocumentedFree planPlatforms$0.42/mofirst paid tier About FormcarryVisit site - Free plan apiWeb
- Free plan
- Yes
- Paid from
- 15 /mo
- Deployment model
- cloud
- Monthly submissions
- 5,000 /mo
- Conditional logic
- Yes
- Webhooks
- Yes
RecognisedDocumentedFree planPlatforms$15/mofirst paid tier About FormidableVisit site - Free plan apiWeb
- Free plan
- Yes
- Paid from
- 10 /mo
RecognisedDocumentedFree planPlatforms$15/mofirst paid tier About FormspreeVisit site - Free plan Web
- Free plan
- Yes
- Paid from
- 12 /mo
RecognisedDocumentedFree planPlatforms$13/mofirst paid tier About FormesterVisit site - Free plan Web
- Free plan
- Yes
- Paid from
- 4.99 /mo
RecognisedDocumentedFree planPlatforms$4.99/mofirst paid tier About FormKeepVisit site - Free plan Web
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - Free plan Web
- Free plan
- Yes
RecognisedDocumentedFree planPlatforms - Free plan Web
- Free plan
- Yes
- Paid from
- 279 /mo
RecognisedDocumentedFree planPlatforms$279/mofirst paid tier About FormsortVisit site - Free trial Web
- Free plan
- No
- Paid from
- 300 /mo
RecognisedDocumentedFree planPlatforms$220/mofirst paid tier About Form.ioVisit site - Web
- Deployment model
- cloud
- Conditional logic
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- Yes
- Paid from
- 15.83 /mo
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- Yes
- Deployment model
- cloud
- Webhooks
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- Yes
- Deployment model
- cloud
- Monthly submissions
- 5,000 /mo
- Webhooks
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Free plan
- No
- Paid from
- 24 /mo
RecognisedDocumentedFree planPlatforms$29/mofirst paid tier About FormlyVisit site - Web
- Free plan
- Yes
- Deployment model
- cloud
- Webhooks
- Yes
RecognisedDocumentedFree planPlatforms - Web
- Conditional logic
- Yes
RecognisedDocumentedFree planPlatforms - WebRecognisedDocumentedFree planPlatforms
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which form API software is ranked first on Everything Xiaomi?
Endatix is ranked #1 of 25 with a score of 7.1. Paperform is second and forms.app third.
How many of these have a free plan?
16 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Formcarry has the lowest first paid tier we found: $0.42/mo.
How is this list ranked?
Ranked on what each maker publishes: documentation depth, a free tier and the platforms it runs on. Paid placements never change a rank.