HDA Tools

File Merger

Merge multiple file chunks into one complete file with drag-and-drop sorting.

File Merger - Select File Chunks to Merge

Drag and drop files here or click to select

Maximum file size: 100 MB · Maximum file count: 50

File Merger Tool Guide

File Merger is a free online tool that can merge multiple file chunks into one complete file. Supports drag-and-drop sorting to adjust the merge order of file chunks. Supports any file format (documents, images, videos, audio, archives, executables, etc.), up to 50 files, each file size limit 100MB. Shows real-time progress bar during merging, clearly displaying merge progress. After merging, you can download the merged complete file. All processing is done locally in your browser, data is not uploaded to the server, completely protecting your privacy and data security.

Drag-and-drop sorting, flexible order adjustment
100% local processing, privacy secure
Supports any file format, up to 50 files

Tool Features

Drag-and-Drop Sorting and Flexible File Management

Supports drag-and-drop sorting to easily adjust the merge order of file chunks. File list is displayed in card format, each file shows sequence number, file name, and file size. Supports removing individual files, can delete unwanted file chunks at any time. File list supports up to 50 files, each file size limit 100MB. Provides visual feedback during drag-and-drop sorting, dragged files are highlighted for easy confirmation of sort position. File order directly affects merge results, ensuring file chunks are merged in the correct order.

Wide File Format Support and Smart Filename Generation

Supports any file format, including documents (PDF, Word, Excel, PowerPoint), images (JPEG, PNG, GIF, BMP, WebP, etc.), videos (MP4, AVI, MKV, MOV, etc.), audio (MP3, WAV, FLAC, AAC, etc.), archives (ZIP, RAR, 7Z, TAR, etc.), executables, code files, etc. Smart filename generation: If the filename is in the format generated by the split tool (e.g., file.part1, file.part2), it will automatically recognize and generate the original filename; otherwise, it generates a merged filename with timestamp. Merged files maintain the original file type, ensuring file integrity.

Real-Time Progress Feedback and Convenient Download

Shows real-time progress bar and percentage during merging, clearly displaying merge progress. Progress bar uses tool theme colors for unified visual effect. After merging, shows success message and detailed information of merged file (file name, file size). Provides one-click download, click download button to download the merged complete file. Supports reset function, can quickly clear all content and reselect files for merging. All operations have clear visual feedback for smooth user experience.

How to Use

  1. 1

    Select File Chunks

    Click the selection area or drag files to the selection area to select the file chunks you want to merge. Supports multiple file selection, up to 50 files. Supports any file format (documents, images, videos, audio, archives, etc.), each file size limit 100MB. After selection, files are automatically added to the file list, showing file sequence number, file name, and file size. File list is displayed in card format, clear and intuitive.

  2. 2

    Adjust File Order (Optional)

    If the order of file chunks is incorrect, you can adjust it by drag-and-drop sorting. Click and drag the file card to the target position, release the mouse to complete sorting. Visual feedback is shown during dragging, dragged files are highlighted. File order directly affects merge results, ensuring file chunks are merged in the correct order. If you don't need a file, you can click the delete button on the right side of the file card to remove it.

  3. 3

    Start Merge and Download Result

    After confirming the file list and order, click the "Start Merge" button to start merging files. Real-time progress bar and percentage are shown during merging, clearly displaying merge progress. After merging, success message and detailed information of merged file (file name, file size) are shown. Click the "Download" button to download the merged complete file. After merging, you can click the "Merge Another" button to reset the tool and continue merging other files.

Frequently Asked Questions

Does the file merge order matter?
Yes, the file merge order is very important. File chunks must be merged in the correct order, otherwise the merged file may not work properly. If the file chunks are generated using the file splitter tool, the filenames usually contain sequence numbers (e.g., file.part1, file.part2), and can be sorted by sequence number. If the file chunks don't have sequence numbers, you need to manually adjust according to the original split order. The tool supports drag-and-drop sorting to easily adjust the order of file chunks.
Will my files be uploaded to the server?
No, all processing is done in your browser. Your files never leave your device, completely protecting your privacy. File merge operations are performed locally and are not uploaded to any server.
What file formats are supported? How many files can be merged at most?
The tool supports any file format, including documents (PDF, Word, Excel, PowerPoint, text files, etc.), images (JPEG, PNG, GIF, BMP, WebP, etc.), videos (MP4, AVI, MKV, MOV, etc.), audio (MP3, WAV, FLAC, AAC, etc.), archives (ZIP, RAR, 7Z, TAR, etc.), executables, code files, etc. Up to 50 files are supported, each file size limit 100MB. If the number of files exceeds 50, it is recommended to merge in batches.

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