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The best validator alternatives

3 tools that do a similar job to validator, 3 of them open source. Each entry says what it does and who it suits, so you can pick the one that fits instead of the most famous.

You're replacing

validator

A Go library that checks whether structs and fields hold valid data, using tags on struct fields.

  1. 1

    Effect

    Open source · MIT · ★ 17.5k

    A TypeScript library for building typed, maintainable production apps with error handling and concurrency.

    Best for: Teams building large or long-lived TypeScript back-end services; Developers who want errors and dependencies tracked in the type system

  2. 2

    whoops

    Open source · MIT · ★ 13.2k

    A PHP error handler that shows readable, debuggable error pages instead of raw crashes.

    Best for: PHP developers debugging web applications locally; Teams using Laravel, Mezzio, or another framework listed in the README that already bundles it

  3. 3

    react-i18next

    Open source · MIT · ★ 10.1k

    Adds translation support to React apps, built on the i18next ecosystem.

    Best for: React developers who need their app available in several languages; Teams already using the i18next ecosystem or planning to support server-side i18next too

How we pick: tools in the same category that solve the same problem, projects that name each other as alternatives, and open-source projects that describe themselves as an alternative to validator. We don't take payment for placement.