Data Mask Studio vs DataSunrise

Data Mask Studio is a free Windows desktop application for masking sensitive data in CSV files and local HTML content. Users can choose columns to preserve, mask, or exclude; normalize, rename, or compose columns; and reuse profiles for batch work. CSV files can be processed individually or in batches, with selective restoration available later. Its deterministic tokens can keep repeated values consistent across records and files. The app can also restore known codes in local HTML files and dashboards while preserving their markup. Original values and mappings remain in an encrypted local vault, which is needed for restoration. The maker says tokens use HMAC-SHA256, vault data uses AES-256-GCM, and Windows DPAPI protects local keys. Processing stays local, without telemetry or automatic synchronization. Additional tools include password-protected portable backups, vault integrity audits, diagnostics, temporary-file cleanup, and controlled compaction. Large files use bounded-memory streaming. Releases offer a per-user Windows installer and portable ZIP. The app is licensed under GPL-3.0-only. It does not guarantee irreversible anonymization, and its executables are not digitally signed yet, so Windows may show a SmartScreen warning.

DataSunrise is a data, AI and database security platform for protecting sensitive information across cloud, on-premises and hybrid environments. Its functions include activity monitoring and audit, data masking, a database firewall, sensitive data discovery, vulnerability assessment and data security posture management. The firewall monitors activity in real time, detects SQL injection and other malicious query patterns, and can block potential threats. Its controls include encryption, request blocking, access restrictions and SQL allow or deny lists. The company says cloud or on-premises installation uses a non-intrusive approach that leaves existing databases and applications unchanged. Published integrations span SQL and NoSQL databases, warehouses, cloud services, storage, business tools and generative AI services. Available monitoring methods vary with database, version and deployment. DataSunrise says it supports compliance efforts for SOX, HIPAA, GDPR and PCI DSS, among other frameworks. It lists Linux, Windows, web and self-hosted availability. Pricing is on request, with a personalized offer following a request; there is no free plan. A 30-day trial is listed, and the firewall page states performance impact of around 5–10%.