How to Reduce EML File Size? Best 3 Techniques Explained
Published: November 5th, 2025 • 4 Min Read
Are you looking forward to compress EML file to reduce size and save resources? You have come to the right page. Whether you are handling a few EML files or thousands of EML files. Today in this expert guide will help you to overcome your problem via expert-tested and verified 3 techniques. You may either check for duplicate EML files in your data and delete those files. Secondly, you may use an online EML compressor, but not recommended by cybersecurity experts due to data privacy reasons. As a third method to reduce EML size, you may delete the attachments from the EML files. It is suggested to read each section of the blog to understand the solutions completely.
Common User Needs to Reduce EML File Size
- Limited Storage Space: If you have limited storage space in your storage device and have thousands of EML files in it. Then, in this instance, the most suggested solution is to reduce the EML file size. This approach will keep your data safe without affecting the integrity of your data.
- Slow Desktop Performance: Having too many storage devices on your desktop may slow down its performance. Even the browsers and email clients may lag in opening. By reducing the EML file size, you can boost the overall desktop performance, allowing faster and smoother access to your desktop applications.
- Speed Up EML Conversion Process: If you are trying to convert EML files to PST, PDF, HTML, etc., then an EML file with a large size may increase the overall conversion time. Removing duplicate data and reducing the EML file size beforehand will significantly help users to boost the overall conversion process.
Best 3 Tested Ways to Compress EML File
If you are managing a large EML dataset, then you may use the following three techniques: one you may use an online EML compressor; second, you may delete unnecessary attachments from EML files; third, users can delete duplicate EML files to reduce the EML dataset size. Now, let us discuss all three methods working steps one by one.
#1 Method: Use Online EML Compressor
- First, go to the web and select a reputable online tool to reduce EML file size.
- Next, upload EML files to an online tool for the compress process.
- Then, click Compress to start reducing the EML file size.
Note: This method is not suggested by security experts. Since, EML file contains sensitive information and uploading it to an external online service may affect your EML data privacy. Alternatively, you may use the below guided steps.
#2 Method: Delete Attachments from EML Files to Reduce Size
Users may use the secure desktop-based EML attachment remover to reduce the EML file size by removing the attachments from the EML file. Now, let us look for the working steps of the suggested utility.
- At the start, install and run the suggested application on your PC.
- Next, click on the Select Files or Select Folders option to add EML file
- After that, enable EML files and go to the Settings option and check delete attachments.
- Finally, click on Next to delete the attachments from EML files and reduce EML file size
#3 Method: Delete Duplicate EML Files to Save Storage Space
If you want to keep your attachments and still need to reduce the EML dataset size. Then, you may use the EML duplicate remover to delete the same EML file present in your dataset. This approach will reduce your EML dataset while keeping the EML data integrated. Please follow the below working steps below to use the application.
- At the start, install and run the suggested application.
- Next, click on the Select Files or Select Folders option to add EML file.
- Then, select the mode to analyze the duplicate EML file.
- Finally, click on Extract to get the EML dataset in a reduced size.
Final Words
In conclusion of the above blog on the topic of how to reduce EML file size. We have discussed three different techniques to solve the user core problem behind the need to compress the EML file. However, all the techniques are good independently. Therefore, you may go with any of the discussed techniques to solve your problem.