Dev tools · alternatives · 2026

24 alternatives to pbfish – A minimal error-tolerant schema validation library

Error-tolerant schema validation. Contribute to ouromoros/pbfish development by creating an account on GitHub.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. pbfish – A minimal error-tolerant schema validation library launched in 2021; newer entries below may have overtaken it.

1. 1
   Open source, logical multi-master PostgreSQL replication▲151

   Logical multi-master PostgreSQL replication. Contribute to pgEdge/spock development by creating an account on GitHub.

   2025 · github.com · its alternatives →

2. 2
   Valibot▲37

   The 1 kB schema library for TypeScript

   2025 · valibot.dev · its alternatives →

3. 3
   PySchemes – A library for validating data structures in Python▲94

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

   2017 · github.com · its alternatives →

4. 4
   Verify JSON using minimal schema▲91

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

   2020 · github.com · its alternatives →

5. 5
   Structa▲116

   Generate production-ready database schemas from plain English. Export SQL, Prisma & ER diagrams instantly. Free to try, no credit card.

   Nov 2025 · trystructa.com · its alternatives →

6. 6
   An opinionated approach to have type safety in native JavaScript▲19

   Post about Avocado, a small library and pattern guide to help you with type safety and data validation in native JavaScript.

   2015 · rafelsberger.at · its alternatives →

7. 7
   Bytebase 2.0▲88

   Database schema change and version control for developers

   2023 · bytebase.com · its alternatives →

8. 8
   Go library for concise, unambiguous and URL-safe UUIDs▲50

   A generator library for concise, unambiguous and URL-safe UUIDs - lithammer/shortuuid

   2015 · github.com · its alternatives →

9. 9
   PgRebase, codebase management for Postgres▲66

   Easy postgres codebase injection - aka postgres non data live reload - oelmekki/pgrebase

   2016 · github.com · its alternatives →

10. 10
    Koda Validate – Typesafe, combinable validation for Python▲30

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

    2022 · github.com · its alternatives →

11. 11
    a small jQuery Form Validation library▲47

    Got bored of using other ones, so made my own. Contribute to jackfranklin/jQuery-Form-Validator development by creating an account on GitHub.

    2012 · github.com · its alternatives →

12. 12SD
    SchemafreeSQL – Data, Fluid as Code▲42

    Hi HN, I'm Dean, the non-technical co-founder of SchemafreeSQL. We released our beta version about a year ago. You can see the HN Post here https://news.ycombinator.com/item?id=30291592 Today I am pleased to announce our initial release of our hosted SFSQL offering. A major concern from the HN Beta feedback we received was our longevity. Being a hosted database solution I can see why. We took that to heart and re-engineered our offering. We de-risked it by minimizing the amount of infrastructure under our management, fly.io manages customer's dedicated SFSQL endpoints,…

    2023 · schemafreesql.com · its alternatives →

13. 13
    PYNAB, a read-only API for accessing YNAB data▲7

    A minimalistic library designed to provide native access to YNAB data from Python - aldanor/pynab

    2015 · github.com · its alternatives →

14. 14
    OJ – A Clojure library for talking to your database▲37

    :tropical_drink: A Clojure library for talking to your database. - taylorlapeyre/oj

    2014 · github.com · its alternatives →

15. 15
    Zod – TypeScript-first validation library with static type inference▲5

    TypeScript-first schema validation with static type inference - colinhacks/zod

    2020 · github.com · its alternatives →

16. 16VJ
    Valib.js - validation library for the browser and Node.js▲7

    2014 · sideralis.org · its alternatives →

17. 17
    Piou – Build beautiful command-line interfaces with type validation▲27

    A CLI tool to build beautiful rich text command-line interfaces with type validation. - Andarius/piou

    2021 · github.com · its alternatives →

18. 18
    Flake schemas – teaching Nix about your flake outputs▲32

    Flake schemas enable you to teach Nix about new flake output types.

    2023 · determinate.systems · its alternatives →

19. 19
    Mostly ORMless – Ergonomic Postgres from TypeScript▲14

    Ergonomic Postgres from TypeScript. Contribute to jawj/mostly-ormless development by creating an account on GitHub.

    2019 · github.com · its alternatives →

20. 20
    A new validation library for JavaScript (React, Backbone integration)▲8

    Validation library based on type combinators. Contribute to gcanti/tcomb-validation development by creating an account on GitHub.

    2014 · github.com · its alternatives →

21. 21
    Form-validation.js – JavaScript form validation library▲29

    The most customizable validation framework for JavaScript. - soc221b/form-validation.js

    2020 · github.com · its alternatives →

22. 22
    Compile-time model-id validation with declared capability▲6

    Contribute to yujonglee/openrouter-toolkit development by creating an account on GitHub.

    May 2026 · github.com · its alternatives →

23. 23
    GraphQL Centaur – GraphQL Generation tool for MongoDB Stucco▲28

    😱 GraphQL Editor Official CLI - Generate and maintain GraphQL Backend and GraphQL Server - graphql-editor/graphql-editor-cli

    2020 · github.com · its alternatives →

24. 24
    CSV Schema and Validator▲8

    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 →

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 →