This article is aimed at office users who need to organize a large number of video files, introducing how to batch convert multiple MP4 videos in a folder to MKV format. Using the video tool from HeSoft Doc Batch Tool , you can select "Convert Video to MKV", then add files or import files from a folder to add multiple videos to the task list, set the save location, and start processing. The article demonstrates the conversion effect with screenshots before and after processing, and reminds users to verify file paths, record counts, and output directories before batch conversion.
When a folder is piled up with video footage and you need to uniformly convert them into the MKV format, the least recommended method is to manually convert each one. For every video, you have to repeat the steps of opening, selecting, setting the format, and saving; a small number of files can be managed with some effort, but as the file count increases, it becomes extremely time-consuming. Even more troublesome is that manual operation easily misses a video or saves the output files to different locations, requiring another round of time for subsequent organization.
This tutorial aims to solve the problem of "how to batch convert MP4 videos in a folder to MKV". The example uses HeSoft Doc Batch Tool , an office software whose core value lies in batch file processing. Its advantage is not just processing single files, but turning a large number of repetitive file processing actions into streamlined tasks. This article will explain with screenshots: what the files look like before processing, what changes occur after processing, and which functions to click in the software to complete the batch conversion.
Suitable Scenarios: Typical Needs for Uniformly Converting Folder Videos to MKV
Batch converting video formats in a folder is very practical in many office scenarios. For instance, a content team collecting a batch of MP4 footage from different devices wants to unify them into MKV for easier storage; a training department organizing course recordings into a resource pack needs a uniform video format; a project team standardizing video formats in a folder before delivering materials; individual users organizing their media library might also want to convert multiple MP4 videos to MKV.
Compared to single video conversion, folder batch conversion emphasizes "batch import" and "unified output". If each file is processed individually, users need to repeat a large number of identical operations; if using a batch processing tool, one only needs to add files to a list and follow a wizard to complete the settings, and the software can process multiple files continuously. This method is especially suitable for the following situations:
- Multiple MP4 videos exist in the same folder and all need to be converted to MKV.
- File names have numbering or patterns, and users wish to retain the main part of the original file name after conversion.
- Video materials need to be organized or formats unified within a relatively short time.
- Users do not want to repeatedly switch between different video conversion tools.
- Users wish to complete video conversion as part of an office document processing workflow.
As seen in the screenshot, the software has multiple office processing categories on the left, with video tools being just one of them. This design is suitable for users who need to batch process files like Word, Excel, PDF, images, audio, and video daily, completing different types of file tasks within the same toolbox.
Preview of Results: Before Processing, the Folder Contains MP4 Videos
The pre-processing screenshot shows a folder containing multiple MP4 videos. The file names include Video test 23.mp4, Video test 24.mp4, Video test 26.mp4, Video test 27.mp4, Video test 29.mp4, and Video test 30.mp4. Their extensions are all .mp4, indicating they have not yet been converted to MKV.
In actual use, a similar folder might contain meeting videos, promotional clips, course excerpts, editing footage, or surveillance video exports. As long as the goal is a unified output to MKV, the "Convert Video to MKV" function can be used for batch processing. Before processing, it is recommended to gather the videos that need conversion into a single directory, which makes it more convenient later when using the "Import files from folder" option.
Preview of Results: After Processing, File Extensions Change to MKV
After conversion is complete, it can be seen that the same batch of files has become MKV format. In the post-processing screenshot, the file names are Video test 23.mkv, Video test 24.mkv, Video test 26.mkv, Video test 27.mkv, Video test 29.mkv, and Video test 30.mkv. The main parts of the file names basically correspond to the pre-processing ones, while the extension has changed from .mp4 to .mkv.
This processing result is very suitable for archiving. Users do not need to rename files or manually create a comparison table. Confirming whether the conversion goal is achieved can be done simply by comparing the extensions before and after processing. For scenarios with a large number of files, retaining the main file name is particularly important, as it reduces the cost of subsequent searching and verification.
Operation Steps: Batch Convert MP4 Files in a Folder to MKV
Step 1: Find the Video to MKV Conversion Function in the Software
After opening HeSoft Doc Batch Tool , first select "Video Tools" in the left navigation bar. As seen in the screenshot, the Video Tools category displays multiple video processing cards, including "Convert Video to MP4", "Convert Video to AVI", "Convert Video to MKV", "Convert Video to MOV", "Convert Video to FLV", and so on. To uniformly convert videos to MKV, you should select "Convert Video to MKV".
The purpose of this step is to determine the output format as MKV. Because there are multiple similar conversion functions on the same page, pay attention to the card title when selecting. In the screenshot, the "Convert Video to MKV" card is selected and prompts "Batch convert video files to MKV format", indicating that this function is for batch outputting MKV.
Step 2: Enter the Task Page and Import Video Files
After entering "Convert Video to MKV", the function name is displayed at the top of the page, indicating that you have entered the correct module. On the upper right are several common buttons, including "Add File", "Import files from folder", "Clear", and "More". If your goal is to convert videos from a folder, it is preferable to click "Import files from folder"; if you only want to convert a few specific videos, you can click "Add File" to select them manually.
The screenshot has already imported 6 MP4 files, and the list shows sequence number, name, path, extension, creation time, modification time, and an operation column. The summary at the bottom shows a record count of 6. For batch tasks, this record count is very important, as it helps you confirm whether the number of imported files matches expectations.
The purpose of this step is to add the videos needing conversion to the processing queue. The expected result is that all pending videos appear in the list and display the correct file paths. If no files appear in the list after importing, videos might not have been selected yet; if the count is incorrect, you should re-check the folder or add supplements.
Step 3: Check the File List to Avoid Batch Processing Errors
Before clicking next, do not rush to start processing. The efficiency of batch conversion is high, but if the list is selected incorrectly, the errors will also be amplified in batch. Therefore, it is recommended to check three items: file name, file path, and extension. In the screenshot, the name column shows files like Video test 23.mp4, the path column shows they are located in the same test folder, and the extension column shows mp4, indicating this task is indeed processing MP4 videos.
If a certain record does not need conversion, it can be deleted in the operation area of its corresponding row. If the entire batch of files is selected incorrectly, you can use "Clear" and re-import. There are also "Filter" and "Sort" on the interface, which can help organize the list when dealing with a large number of files. This article does not elaborate on specific filtering conditions, as the screenshot only shows button names; specific usage should be based on the actual software interface.
The purpose of this step is to ensure the accuracy of the batch processing objects. The expected result is that only the video files needing conversion to MKV are kept in the list.
Step 4: Click Next and Set the Save Location
After confirming the list, click "Next" at the bottom. The interface process bar shows that the current task has three stages: Select records to process, Set save location, and Start processing. After clicking next, it should enter the second stage, which is setting the save location for the converted files.
The save location setting will affect subsequent file management. It is recommended not to save output files arbitrarily to a temporary directory, but to create clear folders based on the project or purpose. For example, directory names like "ProjectName-MKV Output" or "CourseVideos-MKV Version" can be used, making it convenient to check uniformly after conversion. Although the screenshot does not show specific options on the save location page, it can be determined from the process name that the focus of this step is confirming the output file storage location.
The purpose of this step is to let the software know where to save the generated MKV files. The expected result is that the output path is set and can proceed to the final processing stage.
Step 5: Start Processing and View Conversion Results
After completing the save location setting, proceed to "Start processing". At this point, the software will batch execute video conversion according to the previously imported records. Since the function itself is "Convert Video to MKV", the output target format is already clear. The user only needs to wait for the processing to complete and then view the results at the save location.
After processing is complete, it is recommended to first check by count: If there are 6 records in the task list, there should be corresponding 6 MKV files in the output. Then check by file name: Video test 23.mp4 should correspond to Video test 23.mkv, and similarly for other files. Finally, check if the extensions are .mkv. If these conditions are all met, it indicates the batch conversion has achieved the expected effect.
Frequently Asked Questions and Notes
1. Should videos be put into the same folder before conversion?
Not mandatory, but strongly recommended. Gathering the videos needing conversion into the same folder makes it more convenient to use "Import files from folder" and reduces the probability of missing files. Saving the output MKV files to a separate directory after processing will make file management clearer.
2. Will batch conversion change the file names?
From the example results, the main part of the file name remains unchanged, with the extension changing from .mp4 to .mkv. This naming convention makes it convenient for users to compare files before and after processing. Actual results should be based on the software output; it is recommended to check file names and counts after processing.
3. Why are the path and extension displayed in the list?
The path helps confirm the file source, preventing videos from other directories from being mistakenly added to the task; the extension helps confirm the input file format. For batch conversion, checking this information in advance can reduce rework.
4. What if a video not intended for conversion is imported?
You can find the corresponding record in the list and delete that file using the operation column. If the entire imported content is incorrect, use "Clear" and re-add. Do not proceed directly to processing without checking the list, otherwise unnecessary videos might be processed as well.
5. Should computer resources be considered when processing a large number of videos?
Yes. Video files are usually large, and batch conversion will occupy disk space and require a certain amount of processing time. Before starting, confirm that the output location has sufficient space, and try to avoid running many resource-intensive programs simultaneously. Do not move the original files or close the software during the conversion process to avoid affecting task execution.
Summary: Using Batch Processing Tools to Unify Folder Video Formats
Batch converting MP4 videos in a folder to MKV has a simple core workflow: In HeSoft Doc Batch Tool , enter Video Tools, select "Convert Video to MKV", add videos via "Add File" or "Import files from folder", verify the list and click "Next", set the save location, and start processing. After the processing is complete, check the count, file names, and extensions of the MKV files in the output directory.
For office users who often process video materials, batch conversion is more suitable for real work scenarios than single conversion. It centralizes repetitive operations, reducing manual clicks and the risk of missed or incorrect selections. If you currently have an entire folder of MP4 videos that need to be converted to MKV, you can follow the steps in this article to first import a small number of files for testing, then batch process the complete directory, making video format organization more efficient and controllable.