Build Your Own Form Backend Platform

FormFlow is a self-hosted form backend designed for developers, agencies and SaaS builders who need a practical way to collect and manage form submissions without creating a custom backend for every website.

Connect HTML forms to unique endpoint URLs and manage submissions through a responsive dashboard. The platform includes file uploads, spam filtering, email notifications, custom redirects and webhook integrations, making it suitable for static websites, client projects and internal tools.

Subscription and Billing Management

Create subscription plans with configurable form limits, monthly submission quotas and notification allowances. Stripe integration supports test and live modes, while automated PDF invoicing helps streamline customer billing.

Submission Management and Automation

Search and organize submissions in an email-style inbox, export records to CSV, accept attachments and send notifications to team members. JSON webhooks help connect forms with external services and automation workflows.

Centralized Administration

The admin panel provides user management, subscription plan controls, revenue analytics, editable email templates, SEO settings, SMTP configuration and global platform settings.

Self-Hosted and Responsive

Built with native PHP, MySQL and Tailwind CSS, FormFlow supports a responsive interface, system-wide dark mode and deployment on compatible hosting infrastructure.

FormFlow is a useful starting point for building a hosted form-processing service or adding form collection capabilities to your own web projects while keeping the application and its data on infrastructure you control.

• Self-hosted form endpoints: Connect HTML forms using unique endpoint URLs without writing a separate backend for each form.

• Submission inbox: View, search and manage incoming form entries from a dashboard.

• Spam protection: Honeypot-based detection helps filter automated submissions.

• Email notifications: Send submission alerts and configure notification recipients.

• File uploads: Accept attachments with configurable plan-based storage limits.

• Webhook integrations: Send JSON webhook data to compatible external services.

• Custom redirects: Redirect visitors to custom thank-you pages on supported plans.

• CSV exports: Export collected submission data for reporting and analysis.

• Subscription plans: Configure pricing tiers, form limits, submission quotas and notification slots.

• Stripe payments: Support test and live payment modes through Stripe integration.

• Automated PDF invoices: Generate and email invoices following successful payments.

• Admin dashboard: Manage users, plans, transactions and revenue analytics.

• Email template editor: Customize system emails with dynamic placeholders.

• SMTP configuration: Configure transactional email providers and test connections.

• SEO controls: Manage metadata and Open Graph sharing settings.

• Security features: Includes CSRF protection, input sanitization, password hashing and upload validation.

• Responsive interface: Desktop, tablet and mobile-friendly layouts.

• Dark mode: Toggle dark appearance across the application.

• PHP: Version 8.0 or higher.

• Database: MySQL 5.7+ or MariaDB 10.2+.

• Web server: Apache with mod_rewrite enabled or Nginx.

• PHP extensions: BCMath, Ctype, JSON, Mbstring, OpenSSL, PDO, Tokenizer and XML.

• Composer: Version 2 or higher.

• Hosting: A compatible PHP hosting environment with database access.

• Database setup: Create a database and import the supplied database.sql file.

• Environment configuration: Rename .env.example to .env and configure the database connection variables.

• Dependencies: Run composer install from the project root.

• Initial setup: Configure the application and SMTP settings after installation.

Security note: Change the default administrator password immediately after installation and use secure production configuration before accepting real customer submissions or payments.