Frequently Asked Questions

TextFileCombiner is a free, browser-based tool that allows you to merge multiple files into a single document. It supports over 20 file formats including PDF, DOCX, TXT, HTML, CSV, and more. All processing happens locally in your browser, ensuring complete privacy and security.

Yes, TextFileCombiner is completely free to use. There are no hidden costs, premium tiers, or usage limits. We support the service through non-intrusive advertising. You can combine as many files as you want, as often as you need.

No account is required. TextFileCombiner works instantly without any registration, login, or personal information. Just visit the site and start combining files immediately.

There's no hard limit on the number of files you can combine. However, performance may vary based on your device's capabilities and browser memory. Most users successfully combine 50-100 files without issues. For larger batches, we recommend working in groups.

TextFileCombiner supports over 20 file formats:

• Documents: PDF, DOCX, DOC, RTF, ODT
• Text: TXT, MD (Markdown), LOG
• Data: CSV, JSON, XML
• Web: HTML, HTM, CSS
• Code: JS, TS, PY, JAVA, C, CPP, SQL

Yes! You can combine files of different formats in a single operation. For example, you can merge PDF files with Word documents and text files. The tool extracts the content from each format and combines them seamlessly.

You can export your combined files in three formats:

• TXT: Plain text format, universal compatibility
• PDF: Professional format with formatting preserved
• DOCX: Microsoft Word format for further editing

No. Your files never leave your device. All processing happens entirely in your web browser using JavaScript. We have no servers that receive or store your files. This ensures complete privacy and security for your sensitive documents.

Yes, it's completely safe. Since all processing happens locally in your browser and no data is transmitted over the internet, your confidential documents remain private. We cannot see, access, or store any of your file contents.

Files are only held in your browser's memory while you're using the tool. Once you close the browser tab or navigate away, all file data is immediately cleared from memory. Nothing is saved or cached.

File size limits depend on your browser and device capabilities. Most modern browsers can handle individual files up to 100MB and total combined sizes of 200-500MB. For larger files, consider:

• Closing other browser tabs to free memory
• Using a desktop browser instead of mobile
• Processing files in smaller batches

TextFileCombiner works on all modern browsers:

• Chrome (recommended) - version 60+
• Firefox - version 55+
• Safari - version 11+
• Edge - version 79+
• Opera - version 47+

For best performance, we recommend using the latest version of Chrome or Firefox.

Yes, TextFileCombiner works on mobile devices including smartphones and tablets. However, due to memory limitations on mobile devices, we recommend using a desktop browser for large files or when combining many files.

Simply check the "Include Table of Contents" checkbox before combining your files. You can customize the title of the table of contents. Each file will become a clickable entry in the table of contents, making navigation easy in the final document.

Currently, files are combined in the order they were selected. To control the order, select files one at a time in your desired sequence, or rename your files with number prefixes (01_file.txt, 02_file.txt) before selecting them all at once.

When combining PDFs, the tool extracts text content from each PDF. To preserve formatting and layout, export your combined file as PDF. Note that images and complex layouts may be simplified during the extraction process.

Common reasons and solutions:

• Unsupported format: Check that your file extension is in our supported list
• File too large: Try with a smaller file or close other browser tabs
• Browser issues: Refresh the page or try a different browser
• Corrupted file: Ensure the file opens correctly in its native application

This can happen when files contain special formatting, images, or protected content. Our tool focuses on extracting text content. For files with complex formatting:

• Try exporting as PDF to preserve more formatting
• Convert complex files to simpler formats first
• Check if the source files have copy protection

Large files or many files can use significant browser memory. To improve performance:

• Close unnecessary browser tabs and applications
• Process files in smaller batches
• Use a desktop computer instead of mobile device
• Try Chrome or Firefox for better performance
• Restart your browser if needed