MockBlast is an online mock data generator that creates production-ready seed data, test data, and dummy data for various database systems. It allows developers to stop writing INSERT scripts manually by automatically generating realistic test data instantly.

Key features include SQL schema import where you can paste CREATE TABLE statements, multi-table generation for relational databases, and foreign key support via custom lists to maintain referential integrity. The platform supports live previews, streaming downloads to prevent browser freezing, and operates with a privacy-first approach that doesn't store your data.

The tool works by parsing your raw CREATE TABLE schema to auto-detect data types and generate appropriate mock values. It uses streaming technology to handle large datasets efficiently, generating up to 1 million rows instantly without performance issues.

Benefits include faster database seeding, improved performance testing capabilities, and streamlined UI development with realistic sample data. Use cases include populating development databases, testing pagination and query performance, filling frontend applications with data, and generating JSON test data for API endpoints.

The product targets developers who need to generate large datasets without writing custom scripts, with support for PostgreSQL, MySQL, SQLite, MongoDB, JSON, and CSV formats. It offers both free and lifetime license options with commercial usage rights.