Can AI replace Fillout?
The core loop is small enough for a capable coding agent to produce a useful local version in one sitting. For Fillout, build a polished form that writes to a user-owned database and supports simple branching. The hard boundary is excellent airtable and notion integrations, scheduling, payments, and hosted polish, plus integrations, deliverability, and workflow depth.
01What it costs
Checked Aug 12, 2026 · source: fillout.com.
| Plan | Monthly | Billed yearly | What you get |
|---|---|---|---|
| Free | Free | Free | Unlimited forms, seats, questions and file uploads; 1,000 responses/month; 20MB maximum file size; Fillout branding |
| Starter | $19 | $15/mo | 2,000 responses/month and 20MB maximum file size; unlimited forms, seats, questions and uploads |
| Pro | $49 | $40/mo | 5,000 responses/month; unlimited forms and seats |
| Business | $89 | $75/mo | Unlimited responses, at least 1GB maximum file size, custom domain, unlimited forms and seats |
| Enterprise | — | — | 1 million+ database records, unlimited workflow runs, unlimited forms, seats and responses |
Hidden costs: Fillout says responses continue to be collected after the monthly cap, but the account must upgrade, buy unpublished bulk-submission capacity or wait for reset to use them; Conversion Kit is a separately sold add-on with no public rate.
02Could AI build it for you?
The core job: Build a public form that writes to a user-owned database and supports simple branching, validate submissions, notify the owner, and provide a private response table with CSV export.
What a working version needs:
- Node.js 22
- Resend API key or SMTP credentials
- self-hosted deploy target
Editorial comparison targets the Starter plan and a single-owner form service DIY substitute. Recheck price before merge.
03What you'd give up
- excellent Airtable and Notion integrations, scheduling, payments, and hosted polish
- advanced branching
- payment and CRM integrations
- large template libraries
- enterprise compliance
People still pay for Fillout because a basic form is trivial; people pay when the form feeds a dependable business workflow and never loses a response. The recurring cost buys spam control, email delivery, storage, exports, accessibility, conditional logic, and integrations, not just the visible interface.
04Free and cheaper alternatives
Airtable's database half with public forms and your own disk underneath
baserow.io →05The build prompt
Paste this into an AI coding tool (such as Claude, ChatGPT, Lovable or Replit) to build your own version.
Build a personal replacement for Fillout in an empty repository. Use Next.js 15, TypeScript, Tailwind CSS, SQLite, Drizzle ORM, and Resend; do not offer alternative stacks. The core loop is: build a public form that writes to a user-owned database and supports simple branching, validate submissions, notify the owner, and provide a private response table with CSV export. Make the first run work locally with one documented command. Store all user data locally by default and make export straightforward. Put secrets in .env, ship .env.example, and never commit credentials. Create a form builder with short text, long text, email, number, select, radio, checkbox, and file fields. Publish each form at a stable slug with server-side validation and accessible labels. Add honeypot, rate limiting, submission-size limits, and a clear privacy notice. Store responses in SQLite and provide search, filters, detail view, and CSV export. Send an owner notification without placing submitted values in logs. Support a thank-you screen and one simple conditional branch. Include clear empty, loading, success, and recoverable error states. Add input validation, safe filenames, and graceful handling of unavailable APIs. Write focused tests for the core transformation and one end-to-end happy path. Create a README with setup, architecture, permissions, data location, and backup steps. Do not add accounts, billing, telemetry, analytics, or a hosted control plane. Deliberately leave out payment collection. Deliberately leave out hundreds of third-party integrations. Deliberately leave out multi-brand enterprise workspaces and compliance attestations. Finish by running the tests and listing the exact commands used.
06Open-source starting points
- Formbricks: Active open-source survey and experience-management platform.
App prices, verdicts, alternatives and build prompts are adapted from Can I Vibecode It? (MIT License, © 2026 Rob Hallam). Each price shows the date it was checked and its source. Prices change; confirm on the vendor's site before you decide.
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