# dropzone/dropzone

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18,377 stars · 3,246 forks · JavaScript · NOASSERTION

## Links

- GitHub: https://github.com/dropzone/dropzone
- Homepage: http://www.dropzone.dev/js
- awesome-repositories: https://awesome-repositories.com/repository/dropzone-dropzone.md

## Topics

`drag-and-drop` `dropzone` `file-upload` `javascript` `javascript-library`

## Description

Dropzone is a JavaScript file upload library that provides a browser-based interface for capturing dropped files and transmitting them to a server. It functions as a multipart upload client, splitting large files into smaller chunks to increase transmission reliability and bypass server size limits.

The library includes a client-side image processor capable of resizing images and correcting photo orientation in the browser before they are sent to a server. It generates image thumbnails and visual previews immediately after selection, and can render previews for files already hosted on a server.

The system manages the upload lifecycle through an event-driven pipeline, featuring real-time progress tracking and binary body formats for data transmission. Users can modify the interface appearance through visual theme customization and integrate the library with external listeners using custom browser-native event triggers.

## Tags

### User Interface & Experience

- [Drag and Drop Utilities](https://awesome-repositories.com/f/user-interface-experience/drag-and-drop-utilities.md) — Captures files dropped onto target elements using standard HTML5 drag-and-drop events to initiate uploads.
- [Drag and Drop Libraries](https://awesome-repositories.com/f/user-interface-experience/drag-and-drop-libraries.md) — Captures files dragged into designated elements and transmits them to a server. ([source](https://github.com/dropzone/dropzone/blob/main/cypress.json))
- [File Uploaders](https://awesome-repositories.com/f/user-interface-experience/file-uploaders.md) — Offers a complete library for managing file selection and transfer through drag-and-drop and standard input methods.
- [Image Previewers](https://awesome-repositories.com/f/user-interface-experience/content-display-components/image-previewers.md) — Displays thumbnails and visual representations of images immediately after they are selected for upload.
- [Client-Side](https://awesome-repositories.com/f/user-interface-experience/data-display-components/content-cards/image-resizing/client-side.md) — Adjusts image dimensions and quality in the browser to reduce bandwidth and storage usage before upload. ([source](https://github.com/dropzone/dropzone#readme))
- [File Previewers](https://awesome-repositories.com/f/user-interface-experience/file-previewers.md) — Generates visual representations of selected files before or during the upload process. ([source](https://github.com/dropzone/dropzone/blob/main/.npmignore))
- [Image Thumbnails](https://awesome-repositories.com/f/user-interface-experience/ui-components/image-view-components/image-thumbnails.md) — Generates and displays image thumbnails immediately after selection for upload. ([source](https://github.com/dropzone/dropzone#readme))

### Part of an Awesome List

- [Chunked Uploaders](https://awesome-repositories.com/f/awesome-lists/devtools/file-upload/chunked-uploaders.md) — Implements a mechanism to split large files into smaller segments during transmission to improve reliability and bypass server limits. ([source](https://github.com/dropzone/dropzone/blob/main/CHANGELOG.md))

### Networking & Communication

- [Multipart Transfer Utilities](https://awesome-repositories.com/f/networking-communication/multipart-transfer-utilities.md) — Uploads large files by splitting them into smaller chunks to improve reliability and bypass server size limits.
- [Multipart Upload Utilities](https://awesome-repositories.com/f/networking-communication/multipart-upload-utilities.md) — Implements chunked file splitting to ensure the reliable transmission of large files and bypass server-side size limits.
- [Upload Progress Tracking](https://awesome-repositories.com/f/networking-communication/upload-progress-tracking.md) — Displays real-time progress bars and status updates to users while files are being transmitted.

### Web Development

- [Client-Side Media Processors](https://awesome-repositories.com/f/web-development/client-side-media-processors.md) — Implements client-side image resizing and orientation correction to optimize files before they are transmitted to the server.
- [Multipart Upload Utilities](https://awesome-repositories.com/f/web-development/multipart-upload-utilities.md) — Provides utilities for attaching files and data streams to HTTP requests using binary body formats for server transmission. ([source](https://github.com/dropzone/dropzone/blob/main/CHANGELOG.md))
- [Client-Side Media Processing](https://awesome-repositories.com/f/web-development/client-side-media-processing.md) — Uses the browser canvas to resize and rotate images locally before they are transmitted to the server.

### Content Management & Publishing

- [File Preview Renderers](https://awesome-repositories.com/f/content-management-publishing/content-processing-transformation/document-processing-conversion/document-processing/rendering-visualization/dom-based-content-renderers/file-preview-renderers.md) — Generates visual representations of files by injecting thumbnail elements into the document DOM.

### Software Engineering & Architecture

- [Upload Lifecycle Callbacks](https://awesome-repositories.com/f/software-engineering-architecture/event-driven-architectures/upload-lifecycle-callbacks.md) — Provides event hooks that trigger at specific stages of the file upload process for custom behavior and UI updates.