SuriformThe Form Validation for the Modern Web

Lightweight core, powerful tools — lightning fast, effortless to use.

⚡︎

Lightning Fast

Built for the modern and high-performance frontends — no frameworks, no bloat, just raw speed. Works perfectly with SPAs or vanilla JS projects.

⌬

Define validation rules clearly and flexibly. Handle async checks, cross-field conditions, and dynamic requirements with a clean, declarative API.

🌐︎

Manage messages, field names, and tokens across locales — globally or per form. Enjoy granular localization and message templating.

❝

Manage messages at multiple levels — rule, locale, and group. With support for token formatting, templated inlines, and group message.

⚠︎

Deliver accessible, customizable, and multi-layered error feedback — inline, popup, or summary. With ARIA support for better accessibility.

⚙︎

Take granular control of form behavior, events, and error lifecycles using built-in tools — including the `ajax`, `errors`, and `validity` hooks.