Frequently Asked Questions

Knowledge Builder Pro supports live-text PDFs, DOCX, CSV, TXT, Markdown (.md), and HTML files. Our smart processing system handles each format appropriately, maintaining text structure and formatting while optimizing for ChatGPT knowledge bases. All files are processed with unlimited uploads on both monthly and annual plans.

Choose your preferred plan (Monthly $9/month or Annual $79/year) and start your 7-day free trial immediately. You'll have full access to all features during your trial including unlimited file uploads, smart text processing, and ChatGPT-optimized output files. After 7 days, your subscription automatically begins unless you cancel. You can cancel anytime during your trial to avoid charges.

Knowledge Builder Pro formats your uploads into plain .txt files that align with ChatGPT's custom knowledge base requirements. This includes automatic file chunking to keep files under 20MB each, smart text processing to maintain structure, and formatting that's ready for immediate upload to ChatGPT — keeping you well within the 100-file, 512MB total limit for custom GPTs. It's a streamlined way to prep content for ChatGPT without any manual formatting.

No, both our Monthly ($9/month) and Annual ($79/year) plans include unlimited file uploads and processing. You can convert as many documents as you need without any additional charges. The Annual plan saves you 27% compared to monthly billing, working out to just $6.58/month when billed annually.

We take data security seriously. Files are processed in-memory and are not stored on our servers after processing is complete. All file processing happens in real-time, and we use secure HTTPS connections for all data transfers. Once you download your processed files, they are immediately removed from our system. We maintain strict privacy and data protection standards as outlined in our Privacy Policy.

Yes, you can cancel your subscription at any time through your Account Settings or by managing your subscription through our billing portal. While we don't provide refunds for unused portions of paid subscription periods, your access will continue until the end of your current billing period. You can cancel during your 7-day trial to avoid any charges.

Simply drag and drop your files onto the upload area in the Convert & Build page, or click to select files from your computer. You can upload multiple files at once, and our system will process them in parallel for efficiency. The enhanced drag-and-drop interface provides clear visual feedback when files are being dragged over the page.

We accept all major credit cards and payment methods through Stripe, our secure payment processor. Payment information is processed securely and we never store your payment details on our servers. You can manage your payment methods and view invoices through the billing portal accessible from your Account Settings.

We offer a 7-day free trial so you can test all features before committing to a paid subscription. While we don't provide refunds for unused portions of paid subscription periods, you can cancel at any time and your access will continue until the end of your current billing period. If you have specific concerns, please contact us through our support channels.

Our smart processing system automatically splits large documents into optimally-sized chunks that stay within ChatGPT's file size limits (under 20MB per file). When you download your processed files, they'll be organized in a ZIP archive with clearly labeled parts if chunking was necessary. This ensures your knowledge base files are ready for immediate upload to ChatGPT without any manual splitting.