FormValidation
Component libraries software
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What is FormValidation
FormValidation is a JavaScript form validation library used to add client-side validation rules and feedback to web forms. It targets front-end developers building forms in web applications who need configurable validation logic and UI integration. The product focuses on providing validators, plugins, and framework integrations to connect validation behavior with common UI patterns and form components.
Broad validator rule coverage
FormValidation provides a catalog of common validation rules (for example required fields, format checks, and cross-field comparisons) that can be configured per field. This reduces the need to hand-code repetitive validation logic across forms. It also supports custom validators for domain-specific rules.
UI and framework integrations
The library is designed to integrate validation states with common front-end UI patterns (such as showing messages, icons, and field state classes). It supports plugin-based integration approaches that can align with different CSS frameworks and component stacks. This helps teams keep validation behavior consistent across multiple forms.
Plugin-based extensibility model
FormValidation uses a modular approach where features are enabled through configuration and plugins. This can make it easier to adopt only the needed behaviors (for example triggering strategy, message placement, or submit handling). It also supports extending behavior without forking the core library.
Vendor details not verifiable
Publicly verifiable, authoritative information about the current owning company, headquarters, and corporate status is not consistently available from the product name alone. Multiple similarly named validation libraries exist, which increases the risk of misattribution. FitGap would need the official product URL or publisher name to confirm vendor identity.
Primarily client-side validation
As a front-end library, FormValidation typically addresses client-side checks and user feedback, but it does not replace server-side validation requirements. Teams still need backend validation for security and data integrity. This can lead to duplicated rule definitions unless a shared validation strategy is implemented.
Integration effort varies by stack
While integrations exist, the amount of work to align validation behavior with a specific component library and design system can vary. Complex form patterns (dynamic fields, conditional sections, multi-step forms) may require additional custom code and testing. Teams may also need to manage compatibility across framework versions.
Plan & Pricing
| Plan | Price | Key features & notes |
|---|---|---|
| Developer | $50 one-time | For a solo developer. Free lifetime upgrade; use in multiple websites; full source code; purchase delivered via Sellfy/Gumroad. |
| Organization | $200 one-time | For teams/organizations. Covers all developers in the organization; free lifetime upgrade; use in multiple websites; full source code. |
