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Dev tools · alternatives · 2026

24 alternatives to DataMock

Generate free realistic mock data instantly for testing.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1
    Mockaroo▲354

    A realistic data generator to test your app

    2015 · mockaroo.com · its alternatives →

  2. 2

    Generate custom data & API to build apps in less than 30s

    2021 · retool.com · its alternatives →

  3. 3
    FakeData▲364

    Get your fake data in seconds

    2025 · fakedata-mu.vercel.app · its alternatives →

  4. 4
    DataFairy▲113

    Generate real looking fake data for your tests and demos

    2018 · skillpanel.com · its alternatives →

  5. 5GJ

    Easily create complex JSON data structures using intuitive templates.

    2023 · jsongenerator.io · its alternatives →

  6. 6

    GUI approach to generating realistic mock JSON data

    2022 · mockturtle.net · its alternatives →

  7. 7DA

    Dear HN, I am Riwaj, the cofounder of dstack.ai (https://github.com/dstackai). A few months ago, we built an online service that allows users to publish data visualizations from Python or R. The idea was to build a tool that did not require additional programming or front-end development for publishing data visualizations. Such a code can be invoked from either Jupyter notebook, RMarkdown, Python, or R scripts. Once the data is pushed, it can be accessed via a browser. Open-sourcing dstack: During our customer discovery phase, we realized that dstack.ai should integrate a lot…

    2020 · its alternatives →

  8. 8

    We fake it till you make it

    2024 · its alternatives →

  9. 9

    Go (Golang) Fake Data Generator for Struct. [Notes]This repository is archived, moved to the new repository https://github.com/go-faker/faker - bxcodec/faker

    2019 · github.com · its alternatives →

  10. 10

    Paste real JSON, get 1,000 coherent rows that match it

    Jun 2026 · jsondevtools.org · its alternatives →

  11. 11DA

    Hi everyone, I built a small web tool called Datamorph because I kept running into JSON/CSV converters that either broke with nested data, required login, or added weird formatting. Datamorph is a minimal, fast, no-login tool that can: • Convert JSON → CSV and CSV → JSON • Auto-detect structure (arrays, nested objects, mixed data) • Handle uploads or manual text input • Beautify / fix invalid JSON • Give clean, flat CSV output for real-world messy data It’s built with React + Supabase + serverless functions. Everything runs client-side except file parsing, so nothing is stored. I…

    Nov 2025 · datamorphio.vercel.app · its alternatives →

  12. 12

    Generate Realistic Test Data — Instantly.

    Nov 2025 · data-mock-generator.com · its alternatives →

  13. 13
    Pollux▲82

    Fake json data & json server mock API generator with JWT

    2021 · mohammedal-rowad.github.io · its alternatives →

  14. 14

    Generate realistic data in seconds for free.

    2024 · its alternatives →

  15. 15

    Ultimate tool for test data generation

    2024 · testdatahub.com · its alternatives →

  16. 16
    Chepo▲163

    Get generated data with a single click

    2024 · hidaytrahman.github.io · its alternatives →

  17. 17

    Generate customized, realistic mock data & APIs, via GPT

    2023 · its alternatives →

  18. 18

    A developer-friendly, fast and functional HTTP(S) server.

    Nov 2025 · apimokka.github.io · its alternatives →

  19. 19

    Generate 1M+ rows of SQL/Mongo data instantly & fast.

    Jan 2026 · its alternatives →

  20. 20

    An easy to use web-based editor to create reusable json mock data schema files.

    2023 · laurawebdev.github.io · its alternatives →

  21. 21

    Figma plugin to generate & customise random data for designs

    2022 · figma.com · its alternatives →

  22. 22
    Yadget▲99

    Accelerate your ML & AI testing with reliable synthetic data

    2023 · its alternatives →

  23. 23

    Hi HN! I built FileMock to solve a problem I constantly faced as a developer where I needed mock files for testing uploads, APIs, and storage systems. Key features: • Generates video, audio, image, and document files with precise size control • 100% client-side processing • Supports 20+ formats: MP4, PDF, PNG, MP3, DOCX, etc. • No registration required, just visit and generate Perfect for testing file upload limits, API endpoints, storage quotas, and CI/CD pipelines. I've been using it daily for the past few weeks and thought others might find it useful too. The entire generation…

    2025 · filemock.com · its alternatives →

  24. 24

    Synthetic Test Data Generator

    Nov 2025 · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →