Everything you need to know about building, publishing, and managing AI-generated forms, surveys, quizzes, and landing pages.
Not really — and you don't need to. Instead, use AI to create your form, then use flng.ai to connect and sync it to HubSpot. We make it easy to map your form to existing properties or create new ones (properties, not just fields) right from the page, and get your form live in minutes. Not hours. Not days.
Use Claude or ChatGPT to generate your HTML form. Upload the file to flng.ai. The platform validates your code, extracts your form fields, and lets you map them to your HubSpot contact properties with a single click. Hit publish and you get a live URL and embed code — with real-time HubSpot CRM sync, bot blocking, and secure hosting all included automatically.
flng.ai works with any AI tool that can generate HTML — including Claude, ChatGPT, Gemini, and Manus. If your AI tool outputs an HTML file, you can publish it through flng.ai.
No. HubSpot is available as a powerful integration but is not required. If you want to publish a form or survey quickly without connecting a CRM, you can choose to have submissions delivered as a CSV file download or emailed directly to you instead. This is ideal for HubSpot users who want a fast-lane option for internal surveys, event registrations, or one-off campaigns that don't need to be tracked in their CRM. When you're ready for full CRM sync, simply re-publish the same form with HubSpot connected.
Yes. We provide ready-to-use prompt instructions and Claude skills that help your AI format the form correctly the first time. They guide the AI to structure the hidden code the right way, so our agent can cleanly interpret the data you're collecting when you publish. The result is fewer fixes, cleaner field mapping, and a form that just works when you upload it to flng.ai.
A Claude skill is a reusable set of instructions that teaches the AI exactly how to build a form, survey, quiz, or landing page that uploads cleanly to flng.ai. Instead of explaining the rules every time, you point the AI at the skill and it follows our conventions automatically — proper field names, clean validation, and hidden fields formatted so our agent reads your data correctly. It makes building consistent and repeatable, especially if you create a lot of forms.
Any AI tool that can output an HTML file — Claude, ChatGPT, Gemini, or Manus. Our prompt instructions work across all of them, and our Claude skills are tuned for the best results. Whatever you use, remember to ask the AI to save your work as an HTML file. That single file is what you upload to flng.ai to publish it live.
No. You describe what you want in plain language and the AI writes the code. Our prompts and skills handle the technical details behind the scenes, so you never have to read or edit the HTML yourself. If something needs a change, you just ask the AI in plain English and re-upload the file.
The fastest way is to build the form with any AI tool, then publish it through flng.ai. flng.ai hosts the form, maps each field to a HubSpot contact property, lets you create new HubSpot properties on the spot, and syncs every submission to your CRM in real time. You avoid Zapier chains, custom code, and manual CSV imports, and the form goes live in minutes.
A field is an input on your form, such as a text box or dropdown. A property is where that information is stored on the contact record in HubSpot. When you publish with flng.ai, you map each form field to a HubSpot property, and if the property you need does not exist yet, flng.ai can create it in HubSpot for you without leaving the page.
flng.ai includes built-in bot and automated-submission filtering on every published form. It detects and blocks automated bots and AI form-fillers before they reach your CRM, so your contact list stays clean without you configuring a captcha or writing any code.
flng.ai is an alternative for teams who find native HubSpot forms too limited in design, layout, and logic. You build the form with AI exactly the way you want, then publish it with full HubSpot sync, real-time contact updates, inline property creation, and workflow triggers. You get complete control over the form while keeping the HubSpot data integration you expect.
Yes. Every form or survey published through flng.ai syncs submissions to your HubSpot CRM in real time. Map your form fields to existing HubSpot contact properties, or create new properties directly within flng.ai — no need to leave the page. Easily incorporate workflows using the flng.ai integration as a trigger.
When you publish a form through flng.ai, you go through a field mapping step where each field in your form is matched to a property in your HubSpot CRM. If the property already exists in HubSpot — such as First Name, Email, or Company — you simply map your form field to it with a click. If a property does not yet exist, you can create it directly within the Publisher without ever leaving the page. We connect to your HubSpot account via the HubSpot API and create the new property and a new group in your CRM automatically. Once the form is published, every submission updates the matching properties on the corresponding HubSpot contact record in real time — or creates a new contact if one does not already exist.
We have submitted our app to HubSpot and are waiting on approval. Until then, users can easily connect our app to their HubSpot CRM using the legacy app option in their account settings with contact read and write scopes.
Yes. You can prompt your AI tool — Claude, ChatGPT, Gemini, or Manus — to update your form's HTML to read values from custom URL parameters and pre-populate or pass hidden field values automatically. For example, you can ask your AI to add a hidden field that captures a utm_source parameter from the URL, or pre-fill a form field based on a value passed in the link. Once your AI updates the HTML, simply drop the updated file back into flng.ai, re-publish, and your live form will capture those URL parameter values with every submission — syncing them directly to the corresponding HubSpot CRM properties. For example, you may want to pass the email from your contact to the form to control what contact record the form updates — simply append /?email=name@domain.com to your form URL and the form will automatically identify and update the matching HubSpot contact.
Simply prompt your AI tool to use jsPDF when building your form. jsPDF is a JavaScript library that builds the PDF directly in the browser and downloads it with one click — no print dialog and no extra steps for the user. Load it once in your page's <head> with <script src="https://cdnjs.cloudflare.com/ajax/libs/jspdf/2.5.1/jspdf.umd.min.js"></script>, then draw your report — text, boxes, colors — in code and finish with doc.save('your-filename.pdf') to trigger the download. Just make sure that CDN script tag stays intact when your form is published or cleaned — the download won't work without it.
In most cases, yes — and in many ways it does it better. Native HubSpot forms are limited to HubSpot's drag-and-drop builder, which gives you little control over design, layout, and logic. With flng.ai, you use AI to build your form exactly the way you want it — any design, any field structure, any number of fields — then publish it with full HubSpot CRM sync, real-time contact updates, inline property creation, and workflow triggers. The result is a form that looks and behaves exactly as you intended, with all the HubSpot data integration you'd expect. The main exception is if you rely on HubSpot's native progressive profiling or cookie-based known contact features, which are tied to HubSpot's own form embed — but for the vast majority of lead capture, surveys, and data collection use cases, flng.ai is a more flexible and powerful alternative.
Yes. Every plan includes a 7-day trial. A credit card is required to start. Cancel before Day 7 and you won't be charged — no questions asked. If you stay, your plan kicks in automatically at the end of the trial period.
flng.ai is billed as a simple monthly or annual subscription — never for views or submissions. The Starter plan is $9/month and includes 1 Tenant, 1 Data Connection, 1 user, and 50 form uploads per month. The Pro plan is $29/month and includes 1 Tenant, 1 Data Connection, 3 users, and 50 form uploads per month. The Agency plan is $99/month and includes 5 Tenants, 1 Data Connection per Tenant, 5 users, and 50 form uploads per month per Tenant. Every plan starts with a 7-day trial.
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