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Dev tools · alternatives · 2026

24 alternatives to Validater – a python tool to validate data by schema

A simple, fast, extensible python library for data validation. - guyskk/validr

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Validater – a python tool to validate data by schema launched in 2016; newer entries below may have overtaken it.

  1. 1V1

    A simple, fast, extensible python library for data validation. New features: * union validator * dynamic dict validator * timedelta validator * enum validator * slug validator * fqdn validator * nested model class GitHub: https://github.com/guyskk/validr Document: https://github.com/guyskk/validr/wiki Usage: https://github.com/guyskk/validr/wiki/Scenario-&-Example

    2020 · its alternatives →

  2. 2TW

    2020 · webdatarender.com · its alternatives →

  3. 3
    Validator▲345

    Research and validate you micro saas ideas fast as Cheetah

    2024 · validator.help · its alternatives →

  4. 4

    Deep inspection of Python objects. Contribute to igrek51/wat development by creating an account on GitHub.

    2024 · github.com · its alternatives →

  5. 5
    volder▲63

    Schema builder and data validation for javascript

    2022 · github.com · its alternatives →

  6. 6

    Documentation for the Pydantic stack. Validate data with Pydantic Validation, build production AI agents with Pydantic AI, and monitor LLM calls, agent behavior, and costs with Pydantic Logfire.

    2017 · pydantic-docs.helpmanual.io · its alternatives →

  7. 7

    verify-json. Contribute to yusufnb/verify-json development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  8. 8

    Typesafe, Composable Validation. Contribute to keithasaurus/koda-validate development by creating an account on GitHub.

    2022 · github.com · its alternatives →

  9. 9

    A full-featured schema.org rich cards validation tool

    2020 · redirection.io · its alternatives →

  10. 10

    Check your wheels have the right contents. Contribute to jwodder/check-wheel-contents development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  11. 11
  12. 12

    PySchemes is a library for validating data structures in python - spy16/pyschemes

    2017 · github.com · its alternatives →

  13. 13

    Validate ideas before spending time & money on it

    2022 · its alternatives →

  14. 14

    Free json-ld & schema.org validator tool

    Nov 2025 · schemavalidator.com · its alternatives →

  15. 15

    CSV Validation Tool and API (CSV Schema RI). Contribute to digital-preservation/csv-validator development by creating an account on GitHub.

    2018 · github.com · its alternatives →

  16. 16

    Cross-platform CLI tool to validate configuration files across 18 formats. Syntax and schema validation with JSON Schema, XSD, and SchemaStore integration. Written in Go. - Boeing/config-file-validator

    2023 · github.com · its alternatives →

  17. 17

    Data validation simplified. Contribute to yaaminu/finicky development by creating an account on GitHub.

    2021 · github.com · its alternatives →

  18. 18

    Validate JS objects and arrays using graphql-esque syntax - bsteephenson/Deep-Type

    2015 · github.com · its alternatives →

  19. 19

    Library designed to offer comprehensive data validations

    2024 · rest-data-validator.netlify.app · its alternatives →

  20. 20

    ValidKube combines the best open-source tools to help ensure Kubernetes YAML best practices, hygiene & security.

    2022 · validkube.com · its alternatives →

  21. 21

    Free online json formatter, validator & editor tool

    2025 · onlinejsonutils.com · its alternatives →

  22. 22

    Clean your messy data in minutes!

    2025 · its alternatives →

  23. 23

    A validated JSON manager and REST API generator for Python, Flask, and RethinkDB - jeffersonheard/sondra

    2015 · github.com · its alternatives →

  24. 24

    Professional online json tool | format, validate & convert

    2025 · instantconvert.online · 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 →