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blueimp/JavaScript-Load-Image

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View on GitHub↗
blueimp.github.io/JavaScript-Load-Image↗

JavaScript Load Image

This is a JavaScript image loading library and a suite of utilities for binary metadata parsing and canvas-based transformations. It provides a unified interface for loading images from URLs, Blobs, or Files into HTML elements.

The library includes a canvas-based image transformer for producing scaled, cropped, or rotated images and an image orientation handler that rotates or flips images based on embedded metadata. It also features an Exif metadata parser to extract IPTC and Exif tags and embedded thumbnails from binary image data.

The toolset covers browser-based image processing, including client-side resizing and automatic orientation correction to ensure consistent display across different screens. It supports the extraction and modification of image binary headers and the restoration of metadata after resizing.

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Features

  • Browser-Based Image Processing - Performs image scaling, cropping, and rotation directly within the web browser environment.
  • Canvas-Based Image Processors - Uses an off-screen HTML canvas to perform scaling, cropping, and rotation of image data.
  • Orientation Corrections - Reads Exif orientation tags to automatically rotate or flip the canvas for correct image display.
  • Unified Source Loading - Provides a unified interface to load images from URLs, Blobs, or File objects into HTML elements.
  • Image Metadata Extraction - Parses embedded Exif and IPTC tags from image files to retrieve technical data and thumbnails.
  • Image Scaling - Resizes images to specific maximum dimensions while maintaining the original aspect ratio.
  • Image Transformations - Transforms images from various sources by scaling, cropping, or rotating them.
  • Image Metadata Parsers - Extracts IPTC and Exif tags and embedded thumbnails from image binary data.
  • Image Resizing - Scales images to specific dimensions on the client side while preserving binary header integrity.
  • Image Loading Libraries - Loads images from URLs, Blobs, or Files into HTML elements with integrated scaling and cropping.
  • Binary Metadata Editing - Provides capabilities to directly edit raw image bytes to modify binary metadata and orientation tags.
  • Binary Header Editors - Writes binary headers directly to the image file to maintain metadata integrity without transcoding the payload.
  • EXIF Metadata Handling - Overrides orientation values within image binaries to control how the image is displayed.
  • Image Metadata Preservations - Preserves original binary headers and EXIF metadata during the image resizing process.
  • Binary Header Modification - Overwrites orientation values and restores complete image headers after resizing to maintain file integrity.
4,463 stars·922 forks·JavaScript·MIT·32 views

Star history

Star history chart for blueimp/javascript-load-imageStar history chart for blueimp/javascript-load-image

How this analysis was created: This summary and feature list are AI-generated from collected project material and can contain mistakes. Stars, license and language are imported from GitHub. Inclusion does not mean that we have tested or audited this project. Check the source documentation for any feature you depend on. Learn more on our About page.

Projects sharing features with JavaScript Load Image

These projects share indexed features with JavaScript Load Image. Shared tags can include platform or build tooling; verify the primary use case before treating a result as a replacement.
  • nodeca/picanodeca avatar

    nodeca/pica

    4,111View on GitHub↗

    Pica is a client-side utility for browser-based image scaling, format transformation, and file optimization. It functions as a canvas image processor that transforms data between canvas elements, bitmaps, and blobs for local manipulation within the web browser. The library distinguishes itself through high-quality downscaling using Lanczos resampling and a multi-threaded processing model. It utilizes web workers to split image processing into tiles across CPU cores to increase resizing speed. The project covers a broad range of image manipulation capabilities, including high-quality scaling

    TypeScriptimageresize
    View on GitHub↗4,111
  • fengyuanchen/compressorjsfengyuanchen avatar

    fengyuanchen/compressorjs

    5,749View on GitHub↗

    Compressorjs is a client-side image compression library that reduces file sizes in the browser before upload, using the HTML Canvas API to re-encode images into smaller File or Blob objects. It supports JPEG, PNG, and WebP formats, with configurable quality and dimension controls to balance file size and visual fidelity. The library distinguishes itself through several integrated capabilities. It reads Exif orientation metadata from JPEG images and automatically rotates or flips the canvas to ensure correct display after compression. An AbortController integration allows cancellation of an in

    JavaScriptfile-uploadimage-compressionimage-compressor
    View on GitHub↗5,749
  • exif-js/exif-jsexif-js avatar

    exif-js/exif-js

    4,979View on GitHub↗

    exif-js is a JavaScript library for extracting image metadata directly in the browser. It functions as a binary image buffer parser that reads raw image bytes to retrieve technical details without requiring files to be uploaded to a server. The library parses data following the EXIF and IPTC standards to extract camera settings, timestamps, GPS coordinates, captions, keywords, and copyright information. It utilizes typed arrays and offset-based traversal to navigate image structures and map numeric identifiers to human-readable tags.

    JavaScript
    View on GitHub↗4,979
  • coobird/thumbnailatorcoobird avatar

    coobird/thumbnailator

    5,420View on GitHub↗

    Thumbnailator is a Java image thumbnailing library designed for generating resized images with aspect ratio preservation and high-quality scaling. It serves as a toolkit for rotating, cropping, and adjusting the opacity of images within Java applications. The library is distinguished by its ability to function as an Exif-aware image processor, automatically rotating thumbnails based on embedded orientation metadata. It also provides specialized utilities for digital watermarking, allowing secondary images and branding markers to be overlaid with adjustable transparency. Core capabilities cov

    Javafluent-interfaceimage-processingimage-resizer
    View on GitHub↗5,420
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Frequently asked questions

What does blueimp/javascript-load-image do?

This is a JavaScript image loading library and a suite of utilities for binary metadata parsing and canvas-based transformations. It provides a unified interface for loading images from URLs, Blobs, or Files into HTML elements.

What are the main features of blueimp/javascript-load-image?

The main features of blueimp/javascript-load-image are: Browser-Based Image Processing, Canvas-Based Image Processors, Orientation Corrections, Unified Source Loading, Image Metadata Extraction, Image Scaling, Image Transformations, Image Metadata Parsers.

Which projects share features with blueimp/javascript-load-image?

Projects with overlapping indexed features include: nodeca/pica — Pica is a client-side utility for browser-based image scaling, format transformation, and file optimization. It… fengyuanchen/compressorjs — Compressorjs is a client-side image compression library that reduces file sizes in the browser before upload, using… exif-js/exif-js — exif-js is a JavaScript library for extracting image metadata directly in the browser. It functions as a binary image… coobird/thumbnailator — Thumbnailator is a Java image thumbnailing library designed for generating resized images with aspect ratio… rsmbl/resemble.js — Resemble.js is a JavaScript image comparison library and pixel-based visual regression tool. It functions as an image… kartik-v/bootstrap-fileinput — bootstrap-fileinput is a Bootstrap-compatible HTML5 file upload widget and plugin. It provides a customizable…