Practical mock data and developer tools, available for free.
Mocking.Dev helps developers move from an idea to a working prototype without spending time preparing placeholder data by hand. You can start with ready-made datasets, customize a schema, and generate realistic values for interfaces, APIs, automated tests, demos, and experiments.
Mocking.Dev uses Faker.js to generate realistic, fictional values such as names, addresses, dates, product details, and identifiers. Its broad collection of data generators makes it possible to create varied mock datasets for many development and testing scenarios while keeping generation fast and browser-based.
Alongside mock data generation, Mocking.Dev provides focused tools for common JSON, CSV, encoding, formatting, and debugging tasks. Each tool is designed to be quick to open, easy to understand, and useful without creating an account.
Mock data and schema operations are designed to run in your browser. This keeps the workflow responsive and means we do not intentionally store the content you generate on our application servers. For more details, please read our Privacy Policy.
Have feedback, found a problem, or want to suggest a new tool? Email us at contact@mocking.dev.