@regle/core
Headless form validation library for Vue.js applications
- Status
- Generally available
- Last checked
- Checked · Oct 12, 2026
- License
- Open source
- Pricing
- Free tier · from $0
What it is
Regle is a headless form validation library designed specifically for Vue.js applications. It simplifies the process of adding robust validation to forms, making it easier for developers to ensure data integrity and user input accuracy.
Regle stands out as a lightweight, flexible, and headless form validation library specifically tailored for Vue.js applications, offering developers a powerful yet easy-to-integrate solution.
When it fits — and when it doesn’t
A good fit for
Vue.js developers who need a flexible and customizable form validation solution
Projects requiring both synchronous and asynchronous validations within Vue applications
Developers looking to integrate headless validation into their existing Vue projects without UI constraints
Look elsewhere if
Applications that do not use the Vue.js framework
Teams preferring a fully managed or cloud-based form validation service
Known weaknesses
Each one links to the public issue, changelog or docs page it came from, where we have one.
- 01
Limited to Vue.js applications, reducing its utility for other frameworks
Regle is specifically designed for Vue.js and lacks support for React or Angular
- 02
Insufficient documentation for complex use cases
The official documentation provides basic examples but lacks advanced scenarios and troubleshooting guides
- 03
Performance overhead due to reactive nature of Vue.js integration
In complex forms with many fields, the reactivity can introduce performance bottlenecks
What it does well
Headless architecture for flexible integration
Customizable validation rules and messages
Supports both synchronous and asynchronous validations
Integration with Vue.js ecosystem
Pricing
- Free tier
- YesOpen source — free to use
- Paid from
- $0
- Model
- Flat rate
- Enterprise plan
- No
Pricing not independently confirmed — check the vendor’s page.
Performance benchmarks
How Fast Is It?
Set up @regle/core
Setup steps, common gotchas and what to check after 30 days.
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