Showing 78 open source projects for "javascript form validation"

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  • 1
    jQuery Validation Plugin

    jQuery Validation Plugin

    jQuery Validation Plugin library sources

    The jQuery Validation Plugin provides drop-in validation for your existing forms, while making all kinds of customizations to fit your application really easy. This jQuery plugin makes simple clientside form validation easy, whilst still offering plenty of customization options. It makes a good choice if you’re building something new from scratch, but also when you’re trying to integrate something into an existing application with lots of existing markup. ...
    Downloads: 29 This Week
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  • 2
    Form-Data

    Form-Data

    A module to create readable `"multipart/form-data"` streams

    A library to create readable "multipart/form-data" streams. Can be used to submit forms and file uploads to other web applications.
    Downloads: 9 This Week
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  • 3
    FancyGrid

    FancyGrid

    JavaScript grid library with charts integration & server communication

    JavaScript grid library with charts integration and server communication. Massive number of features, Paging, Sorting, Filtering, Validation, Ajax data, Files data, RESTful, flexible CRUD, Integration with charts, Form module, Theming, Touch Support, and others. FancyGrid is integrated(data binding) with chart libraries, HighCharts, and sparklines.
    Downloads: 3 This Week
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  • 4
    Symfony Validator

    Symfony Validator

    Provides tools to validate values

    Symfony Validator is a PHP component designed to validate data structures using a flexible and extensible validation framework. It supports a wide range of built-in validation constraints and allows developers to create custom validation rules. The Validator component is commonly used for form validation, data integrity checks, and input sanitation, integrating seamlessly with Symfony applications.
    Downloads: 2 This Week
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  • 5
    Formik

    Formik

    Build forms in React

    Formik is the world's most popular open-source form library for React and React Native. Formik takes care of the repetitive and annoying stuff, keeping track of values/errors/visited fields, orchestrating validation, and handling submission, so you don't have to. This means you spend less time wiring up state and change handlers and more time focusing on your business logic. No fancy subscriptions or observables under the hood, just plain React state and props.
    Downloads: 0 This Week
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  • 6
    SurveyJS

    SurveyJS

    JavaScript Survey and Form Library

    SurveyJS Form Library is distributed as npm packages and as scripts and style sheets that you can reference on your page. You can use it in any React, Angular, Vue, Knockout, or jQuery application. React, Angular, Knockout, and Vue3 are supported natively. To communicate with the server, the libraries use JSON objects that represent form schemas (content and layout of a form) and form results (answers). You have the option to build dynamic JSON-driven forms using our free full-featured...
    Downloads: 13 This Week
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  • 7
    WTForms

    WTForms

    A flexible forms validation and rendering library for Python

    WTForms is a flexible forms validation and rendering library for Python web development. It can work with whatever web framework and template engine you choose. It supports data validation, CSRF protection, internationalization (I18N), and more. There are various community libraries that provide closer integration with popular frameworks. WTForms is designed to work with any web framework and template engine. There are a number of community-provided libraries that make integrating with...
    Downloads: 5 This Week
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  • 8
    jQuery UI

    jQuery UI

    The jQuery user interface library

    jQuery UI is a curated set of user interface interactions, effects, widgets, and themes built on top of the jQuery JavaScript Library. Whether you're building highly interactive web applications or you just need to add a date picker to a form control, jQuery UI is the perfect choice.
    Downloads: 2 This Week
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  • 9
    LangExtract

    LangExtract

    A Python library for extracting structured information

    LangExtract is a Python library developed by Google that leverages large language models (LLMs) to extract structured information from unstructured text—such as clinical notes, research papers, or literary works—based on user-defined instructions. It is designed to transform free-form text into reliable, schema-constrained data while maintaining traceability back to the source material. Each extracted entity is precisely grounded in its original context, allowing visual inspection and validation via automatically generated interactive HTML visualizations. LangExtract supports a wide range of models, including Google Gemini, OpenAI GPT, and local LLMs via Ollama, making it adaptable to different deployment environments and compliance needs. ...
    Downloads: 10 This Week
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  • 10
    LLM Datasets

    LLM Datasets

    Curated list of datasets and tools for post-training

    LLM Datasets curates and standardizes datasets commonly used to train and fine-tune large language models, reducing the overhead of hunting down sources and normalizing formats. The repository aims to make datasets easy to inspect and transform, with scripts for downloading, deduping, cleaning, and converting to formats like JSONL that slot into training pipelines. It highlights instruction-tuning and conversation-style corpora while also pointing to code, math, or domain-specific sets for...
    Downloads: 9 This Week
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  • 11
    jQuery Calx

    jQuery Calx

    A jQuery plugin for creating formula-based calculation form

    jQuery Calx is an Excel calculation engine and formula parser built as a jQuery plugin, it offers spreadsheet ability to process and calculate the formula without bringing a table-like spreadsheet interface. In the core of jQuery Calx is a formula parser generated using jison which parse and processes the formula and set of formulas imported from formula.js.
    Downloads: 0 This Week
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  • 12
    jQuery MultiSelect

    jQuery MultiSelect

    Turn a multiselect list into a nice and easy to use list with checkbox

    ...This plugin is simply an alternative interface for the native select list element. When you check an option in the plugin the value is selected on the native list. This allows the value to be submitted in a form as well as retreived through normal POST/GET and javascript methods.
    Downloads: 5 This Week
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  • 13
    Squire

    Squire

    A library of static Eloquent models for common fixture data

    Squire is a library of static Eloquent models for fixture data that is commonly needed in web applications, such as countries, currencies, and airports. It's based on the concepts of Caleb Porzio's Sushi package. Squire includes a validation rule for each model installed in your app. These allow you to easily validate user input to ensure that it matches a record in a specific model. Squire may not always have a model available for the information you require. In this case, you may want to...
    Downloads: 8 This Week
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  • 14
    Binaryen

    Binaryen

    Compiler infrastructure and toolchain library for WebAssembly

    Binaryen is a compiler and toolchain infrastructure library for WebAssembly, written in C++. It aims to make compiling to WebAssembly easy, fast, and effective. Binaryen has a simple C API in a single header, and can also be used from JavaScript. It accepts input in WebAssembly-like form but also accepts a general control flow graph for compilers that prefer that. Binaryen's internal IR uses compact data structures and is designed for completely parallel codegen and optimization, using all available CPU cores. Binaryen's IR also compiles down to WebAssembly extremely easily and quickly because it is essentially a subset of WebAssembly. ...
    Downloads: 52 This Week
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  • 15
    jscodeshift

    jscodeshift

    A JavaScript codemod toolkit

    jscodeshift is a toolkit for running codemods over multiple JavaScript or TypeScript files. It provides A runner, which executes the provided transform for each file passed to it. It also outputs a summary of how many files have (not) been transformed. A wrapper around recast, providing a different API. Recast is an AST-to-AST transform tool and also tries to preserve the style of original code as much as possible. As already mentioned, jscodeshift also provides a wrapper around recast. In...
    Downloads: 6 This Week
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  • 16
    LibPDF

    LibPDF

    A modern PDF library for TypeScript

    LibPDF-js/core is a modern, TypeScript-first PDF processing library that provides a comprehensive toolkit for parsing, modifying, and generating PDF documents with a clean, intuitive API designed to handle real-world files safely and robustly. Unlike many existing JavaScript PDF libraries, it emphasizes lenient parsing that can gracefully handle malformed structures and fallback strategies where typical parsers fail, making it useful for production environments that encounter unpredictable file formats. The library offers full read and write manipulation, including support for encryption with RC4 and modern AES cipher suites, form filling and flattening, digital signature creation and verification, page merging/splitting, rich text extraction with layout information, and font embedding with subsetting.
    Downloads: 8 This Week
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  • 17
    jSuites

    jSuites

    Collection of lightweight common required javascript web components

    jSuites is a robust collection of lightweight, responsive JavaScript plugins and web components designed to provide common UI building blocks that work across frameworks and platforms while keeping performance and simplicity at the forefront. It includes a broad set of components such as calendars, dropdowns, color pickers, modals, sliders, tags, input masks, context menus, and rich form utilities that help enhance user experience without reinventing the wheel for each project. ...
    Downloads: 2 This Week
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  • 18
    PropertyAccess Component

    PropertyAccess Component

    Provides functions to read and write from/to an object or array

    Symfony PropertyAccess is a component that provides a uniform way to read and write object properties and array elements. It allows developers to access nested properties dynamically without directly interacting with the underlying data structure. PropertyAccess simplifies the manipulation of data objects, especially in form handling and data mapping scenarios. It is commonly used in Symfony applications but can be utilized in any PHP project.
    Downloads: 0 This Week
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  • 19
    libphonenumber

    libphonenumber

    Library for parsing and validating international phone numbers

    ...Provides valid example numbers for all countries/regions, with the option of specifying which type of example phone number is needed. Quickly guesses whether a number is a possible phone number by using only the length information, much faster than a full validation. To include the Java code in your application, either integrate with Maven (see wiki) or download the latest jars from the Maven repository.
    Downloads: 7 This Week
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  • 20
    Hotkeys JS

    Hotkeys JS

    A robust Javascript library for capturing keyboard input

    hotkeys-js is a tiny, framework-agnostic library for binding keyboard shortcuts in the browser, from simple key presses to complex combos and sequences. It provides a declarative API to register handlers like ctrl+k, shift+alt+p, or g g, and it normalizes key behavior across major browsers. The library includes scoping, so the same shortcut can trigger different actions depending on page context, and it offers filters to ignore inputs when the user is typing in form fields. You can enable or...
    Downloads: 8 This Week
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  • 21
    Schema.DTS

    Schema.DTS

    JSON-LD TypeScript types for Schema vocabulary

    The project provides a comprehensive set of TypeScript typings based on the Schema vocabulary, enabling developers to author JSON-LD structured data with strong type safety. It supplies both high-level discriminated unions and helper types to model contexts, graphs, and linked data relationships with clarity and accuracy. Usage examples demonstrate how one can import types like Person, WithContext, or Graph and compose JSON-LD objects in a way that aligns with semantic-web and...
    Downloads: 0 This Week
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  • 22
    WebP Codec

    WebP Codec

    Library to encode and decode images in WebP format

    libwebp is the reference codec library for Google’s WebP image format, providing both encoding and decoding along with command-line tools. It supplies cwebp to compress images into WebP and dwebp to decompress them back, making it easy to test quality/size trade-offs across presets and tuning parameters. The GitHub repository is a mirror; the canonical source of truth lives on Chromium’s git, and developer docs are hosted on WebP’s portal. The project underpins WebP support across browsers,...
    Downloads: 33 This Week
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  • 23
    Puppeteer

    Puppeteer

    Headless Chrome Node.js API

    Puppeteer is a headless Node library that provides a high level API for controlling Chromium or Chrome over the DevTools protocol. It requires zero setup and comes bundled with the Chromium version most suited to it. Puppeteer is headless by default, making it fast to run. However, it can also be set to run full or non-headless Chrome or Chromium, simply set the headless option when launching a browser. Many of the things you can do manually in the browser, you can also do with Puppeteer...
    Downloads: 6 This Week
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  • 24
    Vanilla Web Projects

    Vanilla Web Projects

    Mini projects built with HTML5, CSS & JavaScript

    vanillawebprojects is a collection of small, hands-on web apps built with only HTML, CSS, and plain JavaScript to teach core front-end skills without frameworks. Each project targets a concrete concept—DOM manipulation, events, localStorage, fetch, form validation, audio/video APIs, and more—so learners see ideas applied in working code. The codebases are intentionally compact and readable, making them easy to clone, tweak, and extend.
    Downloads: 0 This Week
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  • 25

    Struts Commons

    Interceptors and template classes for Struts 2 based applications

    Various template classes, interceptors and libraries used with Struts 6.7, including client written form field annotations, pagination, redirect after post, session per browser tab. See Javadoc.
    Downloads: 0 This Week
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