Webuploader

Webuploader is a browser-based file upload library written in JavaScript. It provides a system for managing multi-file uploads with support for drag-and-drop, clipboard pasting, and type filtering.

The library includes a chunked file upload manager that splits large files into smaller segments to improve stability and enable partial retries. It features a client-side image compressor that generates previews and reduces file size before transmission, as well as an MD5 file integrity verifier to identify and skip redundant uploads of files already stored on the server.

The tool manages file collection through multiple input methods and handles large file transfers using concurrency and chunking. It further ensures a consistent experience by utilizing runtime-based polyfilling for cross-browser compatibility.

Features

File Uploaders - Provides a comprehensive JavaScript library for managing multi-file uploads with a focus on browser compatibility.

Chunked Uploaders - Splits large files into smaller segments for transmission to increase upload speed and enable partial retries.

Large File Optimization - Implements chunking and concurrency protocols to ensure the stable transfer of oversized files across browsers.

Chunked Resumable Transfers - Splits files into fixed-size chunks with integrity hashes, enabling resumption from the last verified segment after interruption.

Multi-Method Uploads - Ships a JavaScript library that supports multi-method uploads including drag-and-drop, clipboard pasting, and batch selection.

Canvas-Based Image Processors - Processes image data through a browser canvas to generate lower-resolution previews and reduce upload payloads.

Client-Side Compression - Generates small image previews and compresses files before upload to reduce data transfer.

Client-Side Compressors - Generates small image previews and compresses files before transmission to reduce server bandwidth.

Upload-Payload Optimization - Compresses images and generates previews on the client side to reduce data usage before upload.

File Integrity Verifiers - Implements MD5 checksum calculations to verify file identity and prevent redundant uploads of existing server files.

Client-Side Hashing - Generates MD5 cryptographic hashes directly within the browser to verify file integrity and identify duplicates.

Concurrent Request Pools - Implements capped resource pools to manage multiple simultaneous asynchronous network requests for stable file uploads.

Drag-and-Drop File Upload - Provides a unified interface to gather files via multi-selection, type filtering, and drag-and-drop.

Multi-Method File Transfers - Supports a flexible upload workflow incorporating drag-and-drop, clipboard pasting, and standard multi-selection.

Multi-Input Collection - Collects data from drag-and-drop, clipboard, and file-picker events through a unified input handling system.

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Features

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