Merge Files
Merge multiple files into one online. Free file merger tool. Combine split files, join parts. Fast, secure, works in browser.
About Merge Files Tool
This tool merges multiple files into a single file. Upload your files, arrange them in the correct order, and merge them together. Useful for rejoining split files or combining multiple parts. All processing happens in your browser for complete privacy.
How does the file merger work?
Upload multiple files, arrange them in the correct order using the up/down arrows, and click Merge Files. The tool will combine all files into a single file and download the result.
How do I rejoin split files?
Upload all split parts in order (part001, part002, etc.), ensure they're in the correct sequence, and click Merge. The tool will reconstruct the original file.
Does file order matter?
Yes! Files are merged in the exact order shown in the list. Use the up/down arrow buttons to rearrange files if needed. This is especially important when rejoining split files.
What file types can I merge?
You can merge any file types. However, it only makes sense to merge files of the same type or split parts of the same original file. Merging different file types will create a file that may not be valid.
How many files can I merge?
You can merge as many files as your browser can handle. However, the total size and number of files may affect performance. For best results, keep the total size reasonable for your device.
Is there a file size limit?
There's no strict limit, but very large total sizes (over 2GB) may be slow or fail depending on your browser and available memory. The tool works entirely in your browser.
Is my data safe?
Absolutely! All file merging happens directly in your browser. Your files are never uploaded to any server. Everything stays private on your device.
Can I merge text files?
Yes, but this tool merges files at the binary level without adding line breaks between them. For text files where you need each file on a new line, you may need a dedicated text file merger or manually add separators.