Data Mask Studio vs DataVeil

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.

DataVeil masks sensitive SQL database data with fictitious values for testing, development, training, analytics and support. It supports Microsoft SQL Server 2014 or later, Azure SQL DB and MI, MySQL 5.7 or later, Oracle 12c or later, and PostgreSQL 14 or later. Choose random masking or deterministic masking, which can keep values consistent across databases and separate runs. Masks can retain value formats and partial content to help preserve statistical distributions. Discovery algorithms check suspected identifiers and account numbers, and users can add regular-expression patterns. DataVeil maintains referential integrity for defined foreign keys and supports user-defined dependencies. Before writing masked values, users can compare originals and results side by side. Projects run from the GUI, command line or batch files. The Community license includes generated PDF reports and automatically multi-threaded masking. It runs as a Java client with an embedded JDK 21 and uses JDBC. The free Community License never expires and covers databases up to 10GB. The Team license is $5,690 a year for an example configuration; its price depends on connectivity options and source-data size.