Data Mask Studio vs Tonic Fabricate

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.

Tonic Fabricate uses a conversational AI agent to create synthetic data for databases, APIs, and files. It targets product development, software testing, AI model training, reinforcement learning environments, and sales demos. Generated content can include relational records, JSON, PDFs, DOCX files, and emails, with domain details and relationships preserved. An optional Validation Agent reviews output and prompts refinements. Fabricate can create mock APIs from uploaded specifications and define workflows callable through an API; its MCP supports generation from compatible clients such as Claude and Cursor. Listed connections and formats include PostgreSQL, MySQL, Oracle, Databricks, Snowflake, SQL Server, MongoDB, Amazon S3, Avro, Iceberg, and Parquet. Free costs nothing and lists $5 in monthly credits; Plus costs $29 a month with $25 in credits. Enterprise has custom pricing and offers Tonic Cloud or self-hosting. Tonic says synthetic records can reduce exposure to real sensitive data and support GDPR and HIPAA compliance.