List of the Top 21 Post-Quantum Cryptography (PQC) Software for Freelancers in 2025

The CLEAR™ Cryptosystem is an encryption software development kit (SDK) validated by FIPS-140-3, specifically created to safeguard files, streaming media, databases, and network communications through innovative and programmable encryption technology. It seamlessly integrates with all contemporary computing systems, offering an effective and straightforward solution for embedding advanced encryption into current security infrastructures. With its Post-Quantum Cryptography (PQC) capabilities, CLEAR™ ensures robust defense against future cybersecurity challenges, allowing you to secure your data with the most powerful encryption techniques available. This system not only enhances data protection but also allows for swift access and communication across various platforms. Key Features: • PQC Encryption Strength (512bit - 10,240bit) • Ultra Low-Latency Streaming (< 11µs / Packet) • Hyperkey™ Technology with embedded ACL • Multi-Factor / Bio-Metric Symmetric Keys • Plug-N-Play Entropy - CSRNG, QRNG, HRNG Benefits: • Pass cybersecurity audits with best-in-class tools • Share data securely via Sharepoint, Dropbox, and similar services • Protect legacy hardware and older network systems • Extend security to files stored in third-party platforms • Ensure lasting protection for long-term data archival needs, making it a comprehensive choice for organizations looking to the future.

QSE Group specializes in providing quantum-proof data protection solutions that address the growing threat of cyberattacks, including those from future quantum computing technologies. Their decentralized cloud storage platform offers immutable data protection, ensuring continuous access without the risk of over-encryption from ransomware. Through their proprietary encryption technology and Entropy as a Service (EaaS), QSE delivers true randomness for secure key generation, making data breaches virtually impossible. The system is designed to integrate smoothly with existing infrastructures, minimizing disruption while maximizing security. QSE’s services are scalable, supporting businesses of all sizes with secure, high-performance cloud storage and quantum-resilient encryption solutions. By offering flexible API access and a straightforward implementation process, QSE ensures businesses can adapt to future threats without needing significant infrastructure changes. With their focus on quantum-resilient encryption, QSE is providing the long-term security businesses need in the face of ever-evolving cyber risks.

Blaze Transfer offers an excellent option for individuals looking to transmit large files swiftly and securely. With its Quantum Safe End-to-End encryption, Blaze guarantees that your data remains fully protected, whether you're collaborating with colleagues or sharing information with external partners. The platform is designed to be intuitive and accessible, making it easy for anyone to navigate, regardless of their technical expertise. Simply upload your files, select your recipients, and then rest assured knowing that your files will be sent safely and securely. It's a reliable choice for those who value both speed and security in file sharing. Plus, the seamless experience enhances productivity and peace of mind for users.

PryvateNow is a comprehensive communication solution that provides encryption and safeguards for voice and video calls, instant messaging, emails, and conference calls, regardless of whether they are made online or offline. Tailored for businesses of all sizes, it allows organizations to have full control over their communications and the security of their data. Notable features include Post-Quantum ZRTP encryption, which offers exceptional data protection, alongside integrated auditing and compliance capabilities that align with regulations such as MiFID II, HIPAA, and GDPR. Furthermore, the platform provides white-labeled OEM versions of Pryvate Closed User Groups (CUG), enabling personalized user experiences. It also includes a Secure Integration Kit for VoIP, which helps seamlessly integrate Pryvate's secure communication solutions into pre-existing systems. In addition to encrypted voice and video calls, PryvateNow's technology extends to secure email, file transfers, data storage, and hosting secure voice and video conferences, reinforcing its commitment to user security. This all-encompassing strategy ensures that users can engage in secure and confident communication across multiple platforms, enhancing overall organizational productivity.

AVX ONE offers a cutting-edge SaaS platform tailored for managing certificate lifecycles effectively. It caters to the requirements of enterprise PKI, IAM and security professionals, as well as DevOps, cloud, platform, and application teams. With AVX ONE, users gain enhanced visibility, automation, and control over their certificates and keys, facilitating agile responses to cryptographic changes and potential threats. This capability helps mitigate the risk of outages and ensures preparedness for the era of Post-Quantum Cryptography. Additionally, AppViewX serves as a comprehensive platform that delivers immediate benefits through organization-wide certificate lifecycle management and automation for Kubernetes/container TLS, while also providing scalable PKI-as-a-Service, seamless Microsoft PKI Modernization, secure code-signing, IoT Identity Security, SSH Management, and readiness for Post-Quantum Cryptography advancements. By leveraging these features, businesses can enhance their security posture and streamline their certificate management processes effectively.

IBM Guardium Quantum Safe, accessible through the IBM Guardium Data Security Center, is engineered to track, detect, and prioritize cryptographic weaknesses, offering protection for your data against both traditional threats and the emerging risks posed by quantum computing. As advancements in quantum technology continue to progress, encryption methods that once took centuries to breach may now be compromised in just a few hours, thereby endangering sensitive information safeguarded by existing encryption techniques. Acknowledged as a leader in the realm of quantum-safe solutions, IBM has partnered with key industry figures to establish two newly adopted NIST post-quantum cryptographic standards. Guardium Quantum Safe provides an extensive and integrated perspective on your organization’s cryptographic status, effectively pinpointing vulnerabilities and monitoring remediation efforts. Users can tailor and implement policies that comply with internal security protocols and external regulations, all while seamlessly connecting with enterprise issue-tracking systems to enhance compliance workflows. This forward-thinking strategy guarantees that organizations remain informed about their cryptographic vulnerabilities and are prepared to tackle them promptly. Additionally, the system's comprehensive reporting features allow organizations to maintain transparency and accountability throughout their cryptographic management processes.

The Entrust Cryptographic Security Platform acts as a robust, multifaceted solution specifically designed for the oversight and management of cryptographic assets, which include keys, secrets, and certificates across diverse enterprise environments. Featuring a centralized dashboard, this platform enables organizations to have a clear view of their cryptographic assets, track modifications, and receive timely security notifications, thus significantly bolstering their overall security management framework. Engineered for scalability, it offers high-performance cryptographic solutions that comply with regulations and protect against future threats. Among its key functionalities are the automated management of the certificate lifecycle, efficient handling of keys and secrets, and seamless integration with hardware security modules, ensuring secure key storage and cryptographic operations. Additionally, the platform's ability to interact with existing IT and security infrastructures through a broad array of integrations and open APIs makes it a versatile option for businesses seeking to enhance their security measures. This flexibility is vital for organizations striving to maintain a proactive stance in an ever-changing threat environment. In summary, the Entrust platform equips businesses with the necessary tools to navigate the complexities of cryptographic management effectively.

We specialize in cybersecurity, dedicated to safeguarding vital information throughout its lifecycle for leading organizations around the world. Our self-service tool, SSHerlock, allows users to assess their SSH key inventory and understand the associated risks while ensuring post-quantum resilience, all at no charge. Beyond this, we provide solutions like passwordless authentication, operational technology (OT) security, and various defensive cybersecurity services. As we look to the future, what major trends are expected to shape the landscape of cybersecurity in the next year? PrivX is perfectly designed for the secure oversight and management of superuser and power user access within hybrid cloud settings, effectively eliminating the use of harmful privileged passwords in critical infrastructures. UKM Zero Trust automates and streamlines the lifecycle management of millions of encryption keys, enhancing risk mitigation and facilitating successful audits, all while promoting keyless access. Furthermore, our innovative software solution, NQX, offers unmatched performance and security, raising the bar for cybersecurity products. As technology advances, staying abreast of emerging trends will be essential for fortifying security frameworks and ensuring resilience against evolving threats. It is imperative for organizations to proactively adapt their strategies in response to these anticipated changes.

Swift and adaptable, this solution provides comprehensive oversight of systems and users, embodying the modern approach to Public Key Infrastructure (PKI), and integrates flawlessly with DigiCert ONE. It delivers unmatched flexibility for identifying, validating, and protecting all users, systems, and devices alike. Designed from the ground up to meet even the most stringent regional and local deployment standards, DigiCert Enterprise PKI Manager is tailored to accommodate your unique requirements. With configurations available in-country, air-gapped, private or public cloud, or a hybrid model, it ensures remarkable adaptability. The solution also incorporates rapid Intermediate Certificate Authority (ICA) creation along with advanced permissions and access controls. By leveraging Docker containerization, it maintains a minimal footprint while enabling scalability that matches your changing needs. Automatic orchestration and continuous updates ensure that your vital applications are consistently secure and optimized. Furthermore, it effectively tackles the significant security hurdles often faced in Internet of Things (IoT) projects, particularly the challenge of complexity. Through DigiCert IoT Device Manager, you can easily identify, manage, control, and secure every connected device from a central interface, which enhances both organizational efficiency and security. This holistic strategy not only streamlines management processes but also strengthens the entire IoT ecosystem, ensuring that all components work together seamlessly. Ultimately, it empowers organizations to navigate the complexities of modern digital landscapes with confidence.

Developers and enterprises can leverage the QAN blockchain platform to build Quantum-resistant smart contracts, decentralized applications (DApps), DeFi solutions, NFTs, tokens, and Metaverse projects using any programming language they choose. As the first Hyperpolyglot Smart Contract platform, QANplatform enables developers to write in multiple languages while also providing incentives for creating high-quality, reusable code. The risks associated with quantum computing are considerable, and existing blockchain technologies fall short in safeguarding against these threats. In contrast, QAN is meticulously engineered to withstand such challenges, thereby protecting your future assets effectively. Quantum-resistant algorithms, often termed post-quantum, quantum-secure, or quantum-safe, are specifically designed cryptographic techniques aimed at neutralizing potential quantum computer attacks. Adopting these cutting-edge algorithms is crucial for ensuring the safety of digital assets as technology continues to evolve and advance. This approach not only enhances security but also fosters innovation in how we interact with and conceptualize digital environments.

The emergence of powerful and dependable quantum computers poses a significant threat to the safety of current public-key cryptography, putting critical information and infrastructures at risk of breaches. To tackle this pressing issue, SandboxAQ has been selected by the National Institute of Standards and Technology's National Cybersecurity Center of Excellence to take part in the Migration to Post-Quantum Cryptography initiative, working alongside industry collaborators to assist the government in devising effective strategies for transitioning from existing public-key systems to innovative post-quantum cryptographic algorithms. This initiative not only streamlines adherence to new cryptographic standards but also facilitates a smooth transition between various algorithms without the need for extensive development or maintenance efforts. Additionally, the Application Analyzer is crucial as it tracks and records every interaction with cryptographic libraries during application execution, thereby identifying vulnerabilities and compliance issues. Such tools are indispensable in enhancing the security landscape as we move toward an era dominated by quantum computing, ensuring that organizations remain prepared to face future challenges in data protection. As the technological landscape evolves, ongoing collaboration and innovation will be vital in safeguarding critical infrastructures against emerging threats.

SSH NQX represents a state-of-the-art encryption solution designed to provide quantum-safe security for Ethernet and IP communications across a variety of networks, which encompass both public and private sectors. Utilizing advanced post-quantum cryptographic methods, it safeguards data-in-transit from both current and future cyber threats. With the ability to support data transmission speeds reaching up to 100 Gbps, NQX guarantees smooth and secure interactions among enterprise locations, networks, clouds, and data centers. It also integrates quantum-resistant algorithms that shield sensitive data from the potential dangers associated with future quantum computing advancements, ensuring long-term confidentiality and data integrity. Specifically designed to accommodate complex network infrastructures, NQX facilitates efficient management of multiple connections and encryption keys, making it scalable for large enterprises. Moreover, it creates encrypted connections between data centers, assuring the secure transfer of data while preserving the existing network architecture. This array of features not only enhances security but also streamlines operations, solidifying NQX's role as an essential element in contemporary cybersecurity frameworks. In a world where data security is paramount, NQX stands out as a proactive solution for organizations aiming to fortify their defenses against evolving threats.

Naoris Protocol introduces a groundbreaking framework for cybersecurity that seeks to restore confidence in digital landscapes. By offering a verified cyber-status that goes beyond traditional limits, it enables organizations to shift from a disjointed, centralized cybersecurity model to a more collaborative and decentralized computing paradigm. The primary aim of Naoris Protocol is to strengthen cyber-trust in digital systems and ensure data integrity while providing ongoing, immutable verification that spans across organizational boundaries, thus enhancing the dependability of global digital infrastructures. By integrating post-quantum cryptography, a specialized dPoSec consensus mechanism, and Decentralized Swarm AI, it effectively reduces cyber risks and allows for real-time sharing of compliance proofs among partners, ecosystems, and regulatory entities. This community-focused computing framework not only encourages devices to contribute computational power and security validations but also promotes a more secure digital ecosystem. Furthermore, Naoris Protocol signifies a pivotal evolution in the methodology of cybersecurity across diverse industries, paving the way for a future where trust and security are paramount.

Quantum Xchange emerges as a leader in the field of advanced cryptographic management solutions designed to safeguard data during transmission against both existing and impending cyber threats, especially those posed by the rise of quantum computing technologies. Their comprehensive platform addresses encryption vulnerabilities, ensuring robust data security today while also equipping systems for quantum resistance in the future. A key feature of their offerings is CipherInsights, an effective tool that helps organizations detect, catalog, and prioritize cryptographic weaknesses within their networks. This continuous monitoring enables early identification and remediation of potential security flaws, greatly enhancing the overall security posture of the organization. Furthermore, the Phio TX solution boosts data protection by offering a cost-effective, crypto-agile, and quantum-resistant alternative that seamlessly merges with current IT infrastructures. This seamless integration facilitates the adoption of post-quantum cryptographic algorithms without significantly affecting system performance, allowing organizations to maintain security amid a rapidly evolving digital environment. With such groundbreaking innovations, Quantum Xchange exemplifies its dedication to improving data security in an age where cyber threats are increasingly sophisticated and persistent. The company's proactive approach ensures that clients are not only prepared for today's challenges but also resilient against future threats.

Post-Quantum has created an extensive Quantum-Safe Platform, designed as a modular suite of cybersecurity tools that aims to protect organizations from the emerging risks associated with quantum computing advancements. This platform incorporates interoperable, backward-compatible, and crypto-agile solutions that enable a seamless shift to advanced encryption technologies. Moreover, it boasts a quantum-ready, multi-factor biometric authentication system that allows for secure logins without the use of passwords. Included in the suite is a quantum-safe VPN, which ensures that data transmitted over networks remains protected from both traditional and quantum threats. Additionally, the platform features the first-ever quantum-safe, end-to-end encrypted messaging application, specifically designed for secure intra-company communication. To strengthen governance, stakeholders are given the ability to cast votes that are cryptographically verifiable to endorse different actions. Through these pioneering offerings, Post-Quantum is helping organizations across various industries, including defense, critical national infrastructure, and financial services, to effectively implement quantum-safe encryption, thereby securing their digital assets for the future. This forward-thinking strategy underscores the critical need for readiness in a post-quantum landscape, as the impacts of quantum computing continue to evolve.

QuSecure's QuProtect is a comprehensive software solution designed for post-quantum cryptography that aims to protect data across various environments including networks, cloud services, IoT devices, edge systems, and satellite communications. By utilizing quantum-resilient cryptography, crypto-agility, a zero-trust framework, and quantum-strength keys, it provides a strong defense against both current and emerging cyber threats. QuProtect enables the seamless integration of post-quantum cryptography into existing infrastructures, allowing organizations to enhance their cybersecurity strategies without significant disruptions. Furthermore, it features hybrid post-quantum TLS, empowering users to oversee cryptographic algorithms and key management while ensuring centralized control over cryptographic protocols network-wide. Offered as a quantum-security-as-a-service model, QuProtect combines orchestration, inventory management, telemetry, and cryptographic controls into a single cohesive platform, significantly improving security efficacy. This groundbreaking strategy not only strengthens data protection but also equips organizations to face the continuously evolving landscape of cyber threats with confidence. Ultimately, QuProtect stands as a proactive solution for organizations seeking to future-proof their cybersecurity measures against the challenges posed by quantum computing.

Tychon serves as an advanced platform designed for endpoint analytics and remediation, aiming to provide comprehensive visibility and management of enterprise endpoints. This innovative tool enables organizations to conduct efficient searches, visualize data, remediate issues, and monitor security compliance for all their endpoints through a unified interface. Among its standout features are real-time monitoring capabilities, the ability to access historical data, and rapid query functions that allow for the prompt identification of potential threats and vulnerabilities. The platform features dynamic dashboards that highlight critical cybersecurity breaches, offering a complete perspective on vital security components. Tychon also complies with numerous standards such as STIG, CVE/IAVA, and endpoint protection, effortlessly integrating with current technological frameworks. Designed to be lightweight and serverless, it can be implemented via Intune/MECM and operates efficiently in both cloud and on-premises environments. Furthermore, its intuitive interface enables organizations to quickly respond to evolving security challenges, ensuring they maintain strong endpoint protection. Ultimately, Tychon not only enhances security measures but also fosters a proactive approach to managing enterprise endpoints effectively.

PQShield offers an extensive array of post-quantum cryptography solutions designed to protect digital infrastructures against the emerging threats posed by advancements in quantum computing. Their UltraPQ-Suite includes a selection of hardware and software products that are specifically engineered for various uses, emphasizing ultra-fast, ultra-compact, and ultra-secure designs. One notable product is the PQPlatform-Lattice, which is a small, FIPS 140-3 CAVP-compliant cryptographic engine that supports lattice-based algorithms such as ML-KEM and ML-DSA. In addition, the PQPlatform-CoPro integrates both hash-based and lattice-based cryptographic engines, facilitating smooth incorporation into existing security systems. Another key offering, the PQPlatform-TrustSys, is a fully autonomous root-of-trust subsystem that emphasizes minimal integration requirements while providing robust side-channel protection. Moreover, PQCryptoLib acts as a flexible cryptographic library that caters to both post-quantum and conventional algorithms, ensuring a smooth transition to quantum-ready systems and thereby bolstering overall security resilience. As the landscape of quantum threats evolves, PQShield remains committed to delivering cutting-edge solutions to meet the demands of a secure digital future.

Classiq serves as a cutting-edge platform for quantum computing software, facilitating the design, refinement, evaluation, and execution of quantum algorithms. It adeptly transforms high-level functional models into optimized quantum circuits, allowing users to quickly construct circuits with a variety of qubit counts, including 100, 1,000, or even 10,000, which can seamlessly operate on any gate-based architecture or cloud service. The platform offers a holistic environment for developing quantum applications, nurturing in-house knowledge and enabling the creation of reusable quantum intellectual property. By automating the complex process of converting high-level functional models into optimized quantum circuits, Classiq's Quantum Algorithm Design platform simplifies the design and coding process at a more abstract level. This empowers users to focus on the conceptual elements of their algorithms, as the system takes care of the technical execution, delivering circuits that meet both functional requirements and system constraints. This pioneering methodology not only boosts productivity but also encourages more innovative approaches in quantum algorithm development, leading to breakthroughs that could redefine the field. As a result, Classiq plays a crucial role in advancing quantum computing capabilities for various applications.

Adopting a data-centric strategy in cybersecurity can significantly reduce the risk of expensive data breaches while also expediting compliance with regulations. Fortanix DSM SaaS is tailored for current data security environments, ensuring ease of use and scalability. It features FIPS 140-2 level 3 confidential computing hardware for enhanced protection and meets the highest security and performance benchmarks. Additionally, the DSM accelerator can be integrated to optimize performance for latency-sensitive applications, providing a seamless experience. This robust SaaS solution transforms data security into a straightforward task, offering a unified system for managing crypto policies, overseeing key lifecycles, and conducting audits, all from a single interface. It empowers organizations to maintain control over their data security efforts effortlessly.

Cellframe Network represents a groundbreaking and adaptable open-source platform that facilitates the development and integration of blockchains and services, all safeguarded by post-quantum encryption. It offers a solid foundation for businesses and developers alike, enabling them to craft a wide array of products ranging from simple low-level t-dApps to entirely new blockchains that leverage the capabilities of the Cellframe Network. Our forward-looking vision for blockchain technology is rooted in the pursuit of widespread utilization, and we are dedicated to expanding the potential applications associated with blockchain systems. Thanks to its innovative sharding architecture, Cellframe can achieve remarkably high transaction throughput, which is vital for scalability. The integration of post-quantum cryptography not only strengthens the network’s security but also prepares it to counter future threats posed by the impending advances in quantum computing. As technology continues to evolve, Cellframe is committed to remaining at the forefront, guaranteeing that its infrastructure is both secure and efficient in a rapidly changing environment. By continuously adapting to new challenges, we aim to foster a resilient ecosystem for our users.