Dev tools · alternatives · 2026
24 alternatives to Random Data Generator for arbitrary data types
Datasino is a command line tool that can come handy when load testing a service or database. Give it a data schema (many compound types supported, including recursive types), an encoding (JSON, CSV or ClickHouse) and a target (a file or a Kafka partition) and a data rate and it will generate a reasonably optimized (native code) random data source. See the top of the README for some examples. If you have any ideas on how to extend this tool so that it's useful to more people, please let me know.
Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Random Data Generator for arbitrary data types launched in 2022; newer entries below may have overtaken it.
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Generate custom data & API to build apps in less than 30s
2021 · retool.com · its alternatives →
- 3IW
https://www.manning.com/books/data-oriented-programming-in-j... This book is a distillation of everything I’ve learned about what effective development looks like in Java (so far!). It's about how to organize programs around data "as plain data" and the surprisingly benefits that emerge when we do. Programs that are built around the data they manage tend to be simpler, smaller, and significantly easier understand. Java has changed radically over the last several years. It has picked up all kinds of new language features which support data oriented programming (records,…
2024 · its alternatives →
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2020 · octoproject.github.io · its alternatives →
- 5
Provides a Kotlin/Java library to create a random json string - mangatmodi/RandomJson
2019 · github.com · its alternatives →
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- 8GT
2013 · databasetestdata.com · its alternatives →
- 9GJ
Easily create complex JSON data structures using intuitive templates.
2023 · jsongenerator.io · its alternatives →
- 10
I built DDL to Data after repeatedly pushing back on "just use production data and mask it" requests. Teams needed populated databases for testing, but pulling prod meant security reviews, PII scrubbing, and DevOps tickets. Hand-written seed scripts were the alternative slow, fragile, and out of sync the moment schemas changed. Paste your CREATE TABLE statements, get realistic test data back. It parses your schema, preserves foreign key relationships, and generates data that looks real, emails look like emails, timestamps are reasonable, uniqueness constraints are honored. No setup, no…
Jan 2026 · ddltodata.com · its alternatives →
- 11
TABLUM.IO▲159Turn CSV, XML & JSON into a live analysis-ready SQL database
2023 · tablum.io · its alternatives →
- 12
Provide an input CSV and a target field to predict, generate a model + code to run it. - minimaxir/automl-gs
2019 · github.com · its alternatives →
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Hey HN, I’m the author. I built Misata because existing tools (Faker, Mimesis) are great for random rows but terrible for relational or temporal integrity. I needed to generate data for a dashboard where "Timesheets" must happen after "Project Start Date," and I wanted to define these rules via natural language. How it works: LLM Layer: Uses Groq/Llama-3.3 to parse a "story" into a JSON schema constraint config. Simulation Layer: Uses Vectorized NumPy (no loops) to generate data. It builds a DAG of tables to ensure parent rows exist before child rows (referential integrity).…
Dec 2025 · github.com · its alternatives →
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- 15DP
2018 · publish.datasettes.com · its alternatives →
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App to easily query, script, and visualize data from every database, file, and API. - multiprocessio/datastation
2022 · github.com · its alternatives →
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Generate realistic, randomized data in over 30 languages
2023 · figma.com · its alternatives →
- 19
OpenSheet▲86Hi folks. I've been doing some experiments on how LLMs could get more handy in the day to day of working with files (CSV, Parquet, etc). Earlier last year, I built https://datakit.page and evolved it over and over into an all in-browser experience with help of duckdb-wasm. Got loads of feedbacks and I think it turned into a good shape with being an adhoc local data studio, but I kept hearing two main things/issues: Why can't the AI also change cells in the file we give to it? Why can't we modify this grid ourselves? So besides the whole READ and text-to-SQL flows, what seemed…
Feb 2026 · opensheet.app · its alternatives →
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Paste real JSON, get 1,000 coherent rows that match it
Jun 2026 · jsondevtools.org · its alternatives →
- 21
Types generator for your Bun.sql queries. Contribute to ilbertt/bun-sqlgen development by creating an account on GitHub.
Jun 2026 · github.com · its alternatives →
- 22QG
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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 →