MultipleUpload JavaScript upload component
Works with any backend npm install Zero dependencies
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Demo Gallery

100 live demos covering every feature of MultipleUpload. Each one is a working example you can use as a starting point.

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Basic Setup

12
Minimal Setup Single File Upload Multiple Files Manual Upload Trigger Custom Button Text & Class External Browse Button Hidden Field (Form Integration) Preloaded Files Programmatic File Add Auto-Generated DOM Human-Readable Size Options Option Aliases

Drag & Drop

8
Basic Drop Zone Standalone Drop Zone Mode External Drop Target Full Page Drop Overlay Folder / Directory Drop Directory Browse (webkitdirectory) Drag & Drop Events Clipboard Paste Upload

Validation

12
Extension Filter MIME Type Filter Magic Byte MIME Validation File Size Limits Image Dimension Limits Max Files Limit Prevent Duplicates Custom Validation Function Async Validation (Promise) Accept Attribute Filter Combined Validation Rules onSelect File Filtering

Chunked Upload

8
Basic Chunked Upload Configurable Chunk Size Parallel Chunk Uploads Chunk-Level Retry Chunk Upload Progress Chunk Events Console Custom Chunk Endpoints Chunked Upload with Checksum

Image Processing

12
Image Resize Image Compression Image Crop Image Rotate Image Flip Image Watermark Auto-Orient (EXIF Fix) EXIF Data Reader Video Thumbnail Extraction Custom Transform Pipeline Full Image Pipeline Static Image Utilities

Events & Callbacks

14
onFileAdded Callback onBeforeUpload Gate Task Lifecycle Events Overall Progress Callback onQueueComplete Callback onCancel Callback Error Handling Callbacks onChange Callback Event System (on/off/once) Paste & Drop Events Retry Events Enable / Disable Events All Callbacks Console Custom Queue Renderer

UI & Display

14
Attachment Mode Thumbnail Previews Preview Click Handler Sortable Queue Filter by Status Priority-Based Upload Order Toast Notifications Image Lightbox Confirm Before Remove Queue-Only (No Thumbnails) Progress Bar Styles Enable / Disable State Confirmation Dialog Utility Show / Hide File Size

Backend Integration

10
Custom Request Headers Dynamic Headers (Function) Custom Form Field Name Custom Response Parser Custom Delete Endpoint Cross-Origin Credentials Custom HTTP Method (PUT) Full Form Integration Multiple Uploaders on One Page getInstance() Lookup

Advanced

10
Kitchen Sink (Everything) File Hashing (CRC32) File Hashing (SHA-256) State Persistence (localStorage) Locale / i18n Concurrent File Uploads Retry with Backoff Strategy Upload Speed & ETA Stats Dashboard Public API Methods