--- title: Microsoft SEAL Reviews meta_title: 'Microsoft SEAL Reviews 2026: Details, Pricing, & Features | G2' meta_description: Filter 15 reviews by the users' company size, role or industry to find out how Microsoft SEAL works for a business like yours. aggregate_rating: rating_value: 4.4 review_count: 15 scale: '5' date_modified: '2026-05-05' parent_category: name: Confidentiality url: https://www.g2.com/categories/confidentiality --- # Microsoft SEAL Reviews **Vendor:** Microsoft **Category:** [Encryption Software](https://www.g2.com/categories/encryption-software) **Average Rating:** 4.4/5.0 **Total Reviews:** 15 ## About Microsoft SEAL Microsoft SEAL is an open-source, cross-platform library developed by Microsoft Research that enables computations directly on encrypted data through homomorphic encryption. This allows developers to perform operations on sensitive information without exposing it, ensuring data privacy and security. Key Features and Functionality: - Homomorphic Encryption Schemes: Supports the BFV scheme for exact computations on encrypted integers and the CKKS scheme for approximate computations on encrypted real or complex numbers. - Cross-Platform Compatibility: Written in standard C++ with no external dependencies, making it compatible with various operating systems, including Windows, macOS, Linux, and Android. - Compression Support: Offers data compression using the DEFLATE algorithm to reduce memory usage when serializing objects like encryption parameters and keys. - .NET Support: Provides a .NET Standard library for seamless integration into .NET applications. Primary Value and Problem Solved: Microsoft SEAL empowers developers to build applications that can process sensitive data while maintaining confidentiality. By enabling computations on encrypted data, it eliminates the need to decrypt information, thereby reducing the risk of data breaches and unauthorized access. This is particularly valuable in sectors like healthcare, finance, and cloud computing, where data privacy is paramount. ## Microsoft SEAL Reviews ### 1. A great beginning. Microsoft Seal is the next step in encryption based tech platforms. **Rating:** 4.0/5.0 stars **Reviewed by:** Ayushman M. | Student, Enterprise (> 1000 emp.) **Reviewed Date:** May 15, 2022 **What do you like best about Microsoft SEAL?** I found Microsoft Seal to be a powerful library that meets almost all data processing needs of any organization. The fact that it is built on a homomorphic encryption system, makes it a truly delightful experience to use. Since data can be directly processed while being encrypted, it gives our clients greater confidence over system security and confidentiality. **What do you dislike about Microsoft SEAL?** Homomorphic encryption still needs to evolve. There remain many issues related to the load on the system, the resources being consumed while processing data etc. These issues need to be resolved to make Microsoft Seal better. **Recommendations to others considering Microsoft SEAL:** Be aware of the benefits and disadvantages that come with using homomorphic encryption **What problems is Microsoft SEAL solving and how is that benefiting you?** Data confidentiality and security is the most important benefit that we are realizing with Microsoft Seal. Our clients too feel reassured about their data. Moreover, the library is powerful enough that we do not feel at any point that a compromise is being made by not decrypting the data and then processing it ### 2. Breakthrough technology in data storage and processing **Rating:** 4.0/5.0 stars **Reviewed by:** Ankesh K. | Software Engineer III, Enterprise (> 1000 emp.) **Reviewed Date:** June 30, 2022 **What do you like best about Microsoft SEAL?** it helped to store and process sensitive data on Azure cloud service without exposing it to the cloud provider. While doing POC on handwritten tweets our main challenge was to keep the signatures of individuals safe. Seal comes as a perfect solution as it provides one additional security on top of the private cloud. we don't have to expose data even to cloud providers. **What do you dislike about Microsoft SEAL?** Technology is still growing so it's slightly slow to use. It would have been good if it had the analytical ability on encrypted data so that we could have given a third party to analyze data without exposing them to real data. **What problems is Microsoft SEAL solving and how is that benefiting you?** it is putting an extra layer of security on top of the private cloud. ### 3. "Seal" A great value product you should own !! **Rating:** 4.5/5.0 stars **Reviewed by:** Lawrence D. | Head Of Recruitment, Small-Business (50 or fewer emp.) **Reviewed Date:** June 30, 2022 **What do you like best about Microsoft SEAL?** Microsoft Seal not only provides an add-on layer of security but also makes sure to keep things simpler. The encryption feature is the best and it adds a lot of value to the product. **What do you dislike about Microsoft SEAL?** Nothing to dislike as such apart from the fact that initially, it might be a little difficult for the novice as it’s a bit technical. **Recommendations to others considering Microsoft SEAL:** Best value product that not only gives you a whole lot of features but is also secured. **What problems is Microsoft SEAL solving and how is that benefiting you?** Just trying to experiment with this product and see how it can add value to the business. ### 4. Beautiful user experience **Rating:** 4.5/5.0 stars **Reviewed by:** Vibhor G. | User Experience Designer, Small-Business (50 or fewer emp.) **Reviewed Date:** June 23, 2022 **What do you like best about Microsoft SEAL?** Ms Seal has offered a great base to complete all the requirements which I needed as a firm of my own, services like the frameworks that help in the encryption and decryption. **What do you dislike about Microsoft SEAL?** It was bery technical and disruptive to understand the basics as a beginner but eventually the use and manipulation led me to the complete understanding of everything. **What problems is Microsoft SEAL solving and how is that benefiting you?** Data analysis and Computation ability is what offered best with this and saves a lot of time and money for a user who us basically working on a small scale like me. ### 5. Good to use Microsoft Seal **Rating:** 5.0/5.0 stars **Reviewed by:** Priyanka A. | System Engineer, Enterprise (> 1000 emp.) **Reviewed Date:** June 22, 2022 **What do you like best about Microsoft SEAL?** It is an open source technology which makes it readily available for all. It helps in end-to-end encrypted data storage which I like the best. **What do you dislike about Microsoft SEAL?** Nothing to dislike so far. All good and it is easy to use. Everything works properly. Everything is good and better. **Recommendations to others considering Microsoft SEAL:** You can definitely go for Microsoft Seal which will be of much use to increase your productivity. **What problems is Microsoft SEAL solving and how is that benefiting you?** It allows addition and multiplications to be performed on encrypted integers or numbers. In that way it helps us a lot. It increases our business performance as well. ### 6. Microsoft SEAL (Simple Encrypted Arithmetic Library) **Rating:** 5.0/5.0 stars **Reviewed by:** Jitendra P. | 5G Security Lead, Enterprise (> 1000 emp.) **Reviewed Date:** May 04, 2022 **What do you like best about Microsoft SEAL?** The best part is, that it is a free & open-source platform. Also what I like best, is the Homomorphic encryption that can implement meaningful operations on encrypted data without first decrypting them. It differs from traditional encryption methods in which it allows computations and operations to be operated directly on encrypted data without exposing the secret key. **What do you dislike about Microsoft SEAL?** There are many known problems with the Homomorphic encryption, where it is close to practicality but not fully practical as it is resource-intensive, it can easily overwhelm & create overhead on the resources. **Recommendations to others considering Microsoft SEAL:** It is good for homomorphic encryption. **What problems is Microsoft SEAL solving and how is that benefiting you?** using it for the experimental purpose to test homomorphic encryption with BFV (Brakerski/Fan-Vercauteren) and CKKS (Cheon-Kim-Kim-Song) schemes. ### 7. Microsoft Seal review **Rating:** 4.5/5.0 stars **Reviewed by:** Aarti J. | IT Security and Compliance Manager, Enterprise (> 1000 emp.) **Reviewed Date:** May 01, 2022 **What do you like best about Microsoft SEAL?** Microsoft Seal is built on the principal of homomorphic encryption and as per my knowledge is open source. It provides additional layer of security as it makes possible the computation on encrypted data in cloud, so it can be very well termed as state of art homomorphic encryption. Many research papers available on the topic. **What do you dislike about Microsoft SEAL?** There are cons and downside to homomorphic Encryption concept, it can be expensive to compute on encrypted data also sometimes it may become impractical as it may require log of computational overhead. **What problems is Microsoft SEAL solving and how is that benefiting you?** Integrated it with an inhouse app on linux usi g python., it was more experimental side. ### 8. Microsoft seal library review **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Computer Software | Enterprise (> 1000 emp.) **Reviewed Date:** September 08, 2022 **What do you like best about Microsoft SEAL?** The best library where we can store all our secret keys, private keys etc securly in cloud. The best part is the security of data which is sealed and secured **What do you dislike about Microsoft SEAL?** Nothing as of now. Seems works perfectly for our requirements **What problems is Microsoft SEAL solving and how is that benefiting you?** Data security which is a concern because prev we used to store secret n private keys in sourcecodes but now it's not that case. We are storing all our secure keys in seal ### 9. Security and privacy expressed at its highest level **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Information Technology and Services | Small-Business (50 or fewer emp.) **Reviewed Date:** September 21, 2022 **What do you like best about Microsoft SEAL?** security to know that my information will not travel the cloud unencrypted **What do you dislike about Microsoft SEAL?** we should have a similar solution for on-premises **What problems is Microsoft SEAL solving and how is that benefiting you?** it solves the problem of having unencrypted data in cloud providers, and it benefits HIPPA and HITRUST compliance projects where privacy is everything ### 10. It's everyone i should recommend. **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Research | Mid-Market (51-1000 emp.) **Reviewed Date:** September 26, 2022 **What do you like best about Microsoft SEAL?** It's good everyone should be like this Microsoft seal **What do you dislike about Microsoft SEAL?** Nothing as such it's amazing everyone like this. **What problems is Microsoft SEAL solving and how is that benefiting you?** Providing open source cross platform softwar e it's benifit for research ### 11. SEAL a best for Encryption **Rating:** 4.0/5.0 stars **Reviewed by:** Marichandran C. | System Engineer, Mid-Market (51-1000 emp.) **Reviewed Date:** June 26, 2022 **What do you like best about Microsoft SEAL?** I like the encryption features it offers **What do you dislike about Microsoft SEAL?** Nothing to specifically as of now. I like it **What problems is Microsoft SEAL solving and how is that benefiting you?** Encryption, Manupulation in encryption ### 12. Once you have it life change **Rating:** 4.0/5.0 stars **Reviewed by:** Ibrahim G. | F, Small-Business (50 or fewer emp.) **Reviewed Date:** May 04, 2022 **What do you like best about Microsoft SEAL?** Useful and easygoing for our business... **What do you dislike about Microsoft SEAL?** Not conect to other Microsoft application **Recommendations to others considering Microsoft SEAL:** Try it it's usually useful let's just keep your eye on your business **What problems is Microsoft SEAL solving and how is that benefiting you?** Solving recurring tasks in our operations which save time and money ### 13. Insights on Microsoft SEAL **Rating:** 5.0/5.0 stars **Reviewed by:** Verified User in Financial Services | Small-Business (50 or fewer emp.) **Reviewed Date:** May 06, 2022 **What do you like best about Microsoft SEAL?** Privacy and security that the platform provides is something which is very helpful and creates trust. **What do you dislike about Microsoft SEAL?** I've been using Microsoft SEAL for quite a while and have not found anything that I dislike. **Recommendations to others considering Microsoft SEAL:** Most user friendly and secured platform. **What problems is Microsoft SEAL solving and how is that benefiting you?** It is an end to end encrypted platform and all the calculations and computation of data can be done within the platform itself which ensures the data to be misused and unnecessary sharing. ### 14. SEAL gives you bang for your buck. **Rating:** 4.0/5.0 stars **Reviewed by:** Cameron K. | Behavior Intervention Specialist, Small-Business (50 or fewer emp.) **Reviewed Date:** December 13, 2021 **What do you like best about Microsoft SEAL?** Microsoft SEAL is a free open source software that allows you to look at encrypted computations without having to decrypt them, making things a little easier, yet still giving you security needed. **What do you dislike about Microsoft SEAL?** It doesn't have all of the bells and whistles of something like WatchGuard or Symantec, but it gets the job done. **Recommendations to others considering Microsoft SEAL:** It's easy and has great support. **What problems is Microsoft SEAL solving and how is that benefiting you?** It allows us to keep things secure and also allows us to keep it simple, not having to hire out web security and decryption to a 3rd party. ### 15. Open Source Encryption - Microsoft **Rating:** 4.0/5.0 stars **Reviewed by:** Verified User in Architecture & Planning | Small-Business (50 or fewer emp.) **Reviewed Date:** May 04, 2022 **What do you like best about Microsoft SEAL?** Free, Open source, errors readily available. Github documentation is nice, it is a good soruce. **What do you dislike about Microsoft SEAL?** There is no customer service, and Seal being a open source we can't expect that too. **What problems is Microsoft SEAL solving and how is that benefiting you?** Encyption, ios and Android development, and decrypting the encrypted data. ## Microsoft SEAL Discussions - [What is Microsoft SEAL used for?](https://www.g2.com/discussions/what-is-microsoft-seal-used-for) - [View Microsoft SEAL pricing details and edition comparison](https://www.g2.com/products/microsoft-seal/reviews?section=pricing&secure%5Bexpires_at%5D=2026-06-26+16%3A24%3A04+-0500&secure%5Bsession_id%5D=2b8bf601-e903-4d64-aaa7-85cae8e8d526&secure%5Btoken%5D=a5229fc047b5d5a51041b2905bd0f0f1983aafd2419c4b9e96b87ec4b491bd2a&format=llm_user) ## Microsoft SEAL Features **Encryption** - Email Encryption - Messaging Encryption - File Transfer Encryption - Data Encryption - Document Encryption - Full-Disk Encryption **Compliance** - Authentication - Policy Enforcement - Access Management **Management** - Backup - Recovery - File Management - Anomaly Detection ## Top Microsoft SEAL Alternatives - [Virtru Email Encryption](https://www.g2.com/products/virtru-email-encryption/reviews) - 4.4/5.0 (411 reviews) - [Keeper Password Manager](https://www.g2.com/products/keeper-password-manager/reviews) - 4.6/5.0 (1,225 reviews) - [Progress MOVEit](https://www.g2.com/products/progress-moveit/reviews) - 4.4/5.0 (519 reviews)