AI Conditional Logic
Tell Formester the rule in one sentence. It writes the show, hide, skip, calculate, and route logic into your form. You preview, edit, publish.
Six logic types, one prompt · Preview and edit before publish · Trusted by 56k+ users
| Type | What it does | Example rule |
|---|---|---|
| Show or hide a field | Reveal a field only when an earlier answer matches. | If "Are you employed?" = Yes, show "Employer name" |
| Skip a page | Jump past sections that don't apply. | If "Account type" = Personal, skip the "Company billing" page |
| Make a field required | Toggle required-on-the-fly so the form stays short for everyone else. | If "Need invoice?" = Yes, require "VAT number" |
| Filter the choices | Narrow a dropdown based on a previous answer. | If "Country" = USA, show US states; if "Canada", show provinces |
| Calculate a value | Compute totals, scores, or pricing as the user fills. | "Total" = "Quantity" × "Unit price" + tax |
| Route email and redirect | Send the response to the right inbox and the right thank-you page. | If "Department" = Sales, email sales@yourco and redirect to the booking link |
Create conditional logic forms using simple prompts. No need to manually set complex rules.
AI gets fast wrong sometimes. Every rule the AI writes lands in the standard rule editor first. Read it, change a condition, change the action, save. Nothing publishes until you say so.
Paste any existing form into Formester (or import from Google Forms, Typeform, Microsoft Forms). The AI reads the fields and lets you describe rules against them, no rebuild.
Gather only the most relevant information with branching questions. Say goodbye to irrelevant fields!
Reduce errors by displaying fields only when conditions are met. Improve data quality automatically.
Let AI handle rule creation while you focus on growing your business. Build smart forms in minutes, not hours.
STEP 1
Start with a blank canvas or a template to set up your form.
STEP 2
Add fields like text boxes, dropdowns, or checkboxes to fit your specific needs.
STEP 3
Use a simple prompt to let AI generate your conditional rules. Just tell it how you want your conditional fields to behave.
Example: If the T-shirt type equals "Men" or if it’s empty, then Hide the fields "women size" and "kid’s size".
STEP 4
Preview your form, make adjustments, and publish it to start collecting responses!
Build multilingual forms that cater to a global audience by translating the form into their native language. Perfect for surveys and applications!
Use the form analytics to track responses and analyze data easily. Know which conditional questions are working and how users engage with your forms.
Customers pick options and the form does the math. Tax, shipping, line totals, and conditional fields like "PO number" all resolve as they fill it in.
Rule: Total = Quantity x Unit price. If Country = USA, add state tax. Show "PO number" only when Pay by invoice = Yes.
Show only the questions that match the position. Engineers see the technical screen, designers see the portfolio prompt, managers get the team-size question.
Rule: If Position = Engineer, show technical questions. If Designer, require portfolio link. If Manager, ask team size.
Stay short for happy users and dig in only when something went wrong. Route detractors to your CS lead. Send promoters to the referral box.
Rule: If NPS <= 6, show "What went wrong?" and route to CS. If NPS >= 9, show the referral box and link the case-study page.
The next question depends on the last one. Easy mode for beginners, harder follow-ups for power users, scoring that adapts to the path each person takes.
Rule: If Q1 = correct, jump to the harder track. If incorrect, show the hint and re-ask. Tally weighted score by section.
| Manual rule-builder | Formester AI rule-writer | |
|---|---|---|
| Time to write a 6-rule form | 15-25 minutes the first time | Under a minute |
| Renaming a field with rules attached | Hunt every rule, fix each one | Re-prompt; the AI rewrites against the new name |
| Adding a rule to a form built last quarter | Re-learn the editor | Read the rule out loud, paste, done |
| Rule preview before publish | Yes | Yes |
| Edit a rule the AI wrote | Yes, in the same editor | Yes, in the same editor |
| Multi-condition AND / OR | Yes, after a few clicks | Yes, written as you'd say it |
| Forms with one rule | Manual is fine | AI is faster but not by much |
| Forms with twenty rules | Painful | Where AI earns the buy |
| Auditability of complex logic trees | Visual flow chart in some tools | Plain-English source of truth |
The short version. A clickable rule editor is fine when you're writing one rule on one form once. The minute the form gets longer, the team gets bigger, or the field names start changing, the AI rule-writer pays itself back on every change.
Privacy and data
The prompt you type to describe your conditional logic, the form responses you collect, and the rules the AI generates from them are all Customer Data. Per Section 4.4 of our Data Processing Addendum, Formester does not use Customer Data to train AI models, run advertising, run analytics, or feed marketing. The Google Gemini integration that powers the rule generation inherits the same boundary.
Your account is encrypted at rest, your form responses move over TLS, and payment data carries an additional AES-256 layer through Stripe. We are GDPR, UK GDPR, and CCPA compliant. We are not SOC 2, ISO 27001, or HIPAA certified yet, and we say so on the security page rather than implying otherwise.
Get started quickly with ready-to-use form templates for different use cases. Customize each template to match your needs and create professional forms in minutes.
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FAQ
Find answers to common questions below, or reach out to our team for more help.
Logic that lets a form react to what's already been answered. The form decides which fields to show, which pages to skip, when to require something, what to calculate, and where to send the response, based on rules you define.
Create your form, choose fields, and set rules based on user responses. With Formester, you can use AI to automatically generate conditional logic and build smart forms quickly.
Yes, you can add branching questions that guide users through different paths based on their answers. This helps you collect accurate and structured responses.
Yes, Formester provides ready-to-use templates for different use cases. You can customize them and add conditional logic to get started faster.
Show or hide a field, skip a page, make a field required, filter the choices in a dropdown, calculate a value, and route the email or redirect on submit. You can stack them with AND / OR
No. Describe the rule in one sentence. Formester's AI translates it into the rule editor. You can also build rules manually in the same editor.
Yes. Every rule the AI generates appears in the standard rule editor. Open it, change the condition, change the action, save.
Yes. Skip-page rules jump past sections that don't apply, based on previous answers.
Yes. Multiply, add, percent, conditional totals. Common cases are quantity × price, score-based outcomes, and tier-based discounts.
Yes. Route submissions to different inboxes, change the email body, or redirect to a different thank-you page based on the response.
Yes. Import from Google Forms, Microsoft Forms, or Typeform; paste a list of questions; or upload a PDF. Then describe the rules.
Conditional logic is on the Personal plan and above. The Free plan covers form building and AI form generation; rules ship from $12/month
No. Customer data isn't used for training, advertising, marketing, or analytics, per Formester's DPA.
No hard limit. We've seen forms with 80+ rules running cleanly. We'd recommend stress-testing anything past 50 rules in preview before publish.
Yes. Conditional logic runs the same on desktop, tablet, and mobile. Forms reflow responsively.