Flattiq is a powerful, free online tool designed to convert complex nested JSON data into flat CSV and Excel formats instantly. Built with privacy and performance in mind.
Process large JSON files instantly with our optimized conversion engine. No server uploads, everything runs in your browser.
Your data never leaves your device. All processing happens locally in your browser, ensuring complete privacy and security.
No hidden costs, no subscriptions, no limits. Flattiq is completely free to use for personal and commercial projects.
Built for developers by developers. Clean interface, powerful features, and support for complex nested structures.
We believe that data conversion should be simple, fast, and accessible to everyone. Flattiq was created to solve the common problem of converting complex JSON structures into formats that can be easily analyzed in spreadsheet applications.
Whether you're a developer debugging API responses, a data analyst preparing datasets, or a business user working with JSON exports, Flattiq makes the process effortless.
Next.js
Framework
TypeScript
Language
Tailwind CSS
Styling
Client-Side
Processing