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A submission backend for websites using their own HTML forms

Define JavaScript and TypeScript schemas that validate data and infer its types.

Form visibility rules with validation that applies only to shown fields

WordPress forms with shared defaults and individual validation settings

JavaScript form components with custom validation and data kept in your application

Headless form collection with a visual submission workflow

Write programmable configuration with validation and generate JSON, YAML, and other output formats.

Custom-form submission handling with uploads and team access

A WordPress submission inbox with saved filters and export controls

A form-definition lifecycle separated from the documents respondents fill in

A YAML-based CLI for asserting the installed packages, services, files, ports, and other state of a system.

Validate Python data against typed models and generate matching JSON Schema.

Email-list validation with detailed status and sub-status classifications

Define and validate data and configuration with a language that combines values and constraints.

Check business tax IDs and connect indirect-tax tasks to your systems

PDF tagging, manual repair, and built-in validation

A WordPress contact-form plugin with a dedicated content block

WordPress form building with an interactive layout and styling controls

Send WordPress contact enquiries to the right inbox with translated form labels.

Hosted HTML form delivery with an inbox and recoverable deleted entries

Free form management for existing websites and private data entry

No-code form builder with AI forms, workflows, payments and HIPAA options

Design OpenAPI descriptions, create API documentation and validate designs in a visual workspace.

Edit, validate, transform, and publish XML in text and visual authoring modes.