Create dynamic forms with conditional logic
Forms shouldn't be one-size-fits-all. Use conditional logic to create a personalized experience for your responders.
Companies building smart forms on Formsort
Adding conditional logic to forms
Whether you need to collect clarifying details, adjust choices dynamically, or create personalized paths based on user input, Formsort provides the flexibility to improve the experience and gather precise data.
Conditional question
Use case: When a respondent answers "Other" to a question.
Application: Automatically show an input field to gather additional information or specification.
Dynamic choices
Use case: Choices within a select question that depend on previous responses.
Application: Display or hide specific options based on the responder's earlier selections, ensuring relevance and clarity.
Step-level logic
Use case: Applying logic to an entire step or page in the form.
Application: Show or hide a group of questions based on specific logic. This is useful when the same logic applies uniformly to all questions within a step.
Group-level logic
Use case: Grouping questions based on certain criteria (e.g., gender).
Application: Show or hide an entire group of steps relevant to a specific category.
Conditional redirects
Use case: Redirect based on responses or conditions met during the form.
Application: Conditionally redirect responders to specific URLs based on their answers. This ensures that the responders end up in the relevant paths.
Conditional calculated variables
Use case: Decide when to calculate a variable based on conditions.
Application: Dynamically calculate variables in real-time based on specific conditions met during the form-filling process, allowing for accurate and context-specific data.
Form logic - from basic to complex
Simple logic
Simple logic allows you to render or hide a question based on the user's earlier responses in the flow. It supports multi-clause conditions and enables nested logic through grouping.
Advanced logic
For complex scenarios you can use advanced logic to define arbitrary boolean expressions over the answers by utilizing MongoDB query and projection operators.
Calculated variables
When your logic requirements extend beyond simple logic, calculated variables come into play. Leverage JavaScript (Typescript format) functions to create variables dynamically.
API variables
Leverage API variables to create logic for conditionally rendering steps with external data. You can then use the data to create logic to conditionally show / hide elements in the form.
Form template examples with conditional logic
Quickly launch forms for personalized responder journey using our ready-to-use templates.
Build dynamic forms with Formsort
Partially completed forms
Get partial form responses and re-engage leads who gave up halfway through
Custom validation
Validate responder data with custom validators, and provide custom error messages
Authenticated forms
Limit access to your forms to authenticated users
Custom design
Create forms that match your brand and website design
Returning responders
Allow users to return to a form and continue from the furthest point
External (hidden) fields
Pass data into your forms and pre-fill fields from external sources, including UTM params
HIPAA-compliant form builder
Collect sensitive medical information securely