Show HN: Generate JSON mock data for testing/initial app development

• faker

  58 11,732 9.7 TypeScript

  Generate massive amounts of fake data in the browser and node.js (by faker-js)

  

• JSON-Schema Faker

  8 3,208 7.1 JavaScript

  JSON-Schema + fake data generators

  

There’s also json-schema-faker which is pretty cool.

https://github.com/json-schema-faker/json-schema-faker

• SurveyJS

  surveyjs.io sponsored

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• trex

  3 238 6.6 Python

  Enforce structured output from LLMs 100% of the time (by automorphic-ai)

  

A friend of mine built a tool called Trex that you might find helpful, check it out here: https://github.com/automorphic-ai/trex

It's very consistent at generating templated data.

• outlines

  30 5,567 9.7 Python

  Structured Text Generation

  

We provide this in https://github.com/outlines-dev/outlines.

• prism

  25 4,006 8.5 TypeScript

  Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations. (by stoplightio)

  

I use https://stoplight.io/open-source/prism with x-faker properties in my OpenAPI specs to mock APIs with dynamic content.

• InfluxDB

  www.influxdata.com sponsored

  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

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