Compressorjs

Features

Client-Side Compression - Reduces image file size in the browser before upload to save bandwidth and speed up transfers.
Client-Side Compressors - A client-side image compression library that reduces file sizes in the browser using the Canvas API before upload.
Image Compression - Re-encodes images with configurable quality and dimensions to reduce file size before upload.
Image Quality Adjustments - Ships a configurable quality parameter on a zero-to-one scale for JPEG and WebP output.
Canvas-Based Image Processors - Re-encodes images by drawing them onto an HTML Canvas element and exporting the result.
Browser-Based Compressors - A browser-based JavaScript library that re-encodes images to smaller File or Blob objects with adjustable quality.
Dimension Bounds Enforcers - Limits the maximum or minimum width and height of the compressed image to fit within bounds.
Manual Quality Adjustments - Sets the quality level for JPEG and WebP output to balance file size and visual fidelity.
EXIF Metadata Handling - Reads the Exif Orientation tag from JPEG metadata and applies a canvas transform to correct rotation.
Orientation-Aware Resizers - Reads and applies EXIF orientation metadata during compression to ensure images display correctly after resizing.
Orientation Corrections - Reads the Exif Orientation tag from JPEG images and automatically rotates or flips the canvas before compression.
Image Cropping Tools - Resizes images to a given width and height using contain or cover modes to fill the target area.
Dimension-Constrained Resizing - Scales or crops images to exact dimensions or within bounds for consistent output sizes.
Exact Dimension Cropping - Provides exact dimension cropping with aspect ratio override for consistent output sizes.
Bounded - Scales images within configurable min/max bounds while preserving aspect ratio.
Exact - Resizes images to exact dimensions with contain or cover fit modes.
Orientation Correction Utilities - Reads Exif orientation data from JPEG images and automatically rotates or flips the output to match.
Image Format Conversion - Changes the MIME type of an image, such as PNG to JPEG, to reduce size or meet server requirements.
Quality Tuning - Accepts a zero-to-one quality value that controls the compression level for JPEG and WebP output.
Compression Abortions - Integrates an AbortController to cancel an in-progress compression task and free resources.
Image Metadata Preservations - Preserves the original image's Exif metadata in the compressed output instead of stripping it.
Canvas Drawing Hooks - Provides before-draw and after-draw hooks for injecting custom canvas operations like watermarks or filters.
Aspect Ratio Preserving Resizing - Scales images within bounding boxes while preserving original aspect ratio.

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fengyuanchencompressorjs

Features

Open-source alternatives to Compressorjs

coobird/thumbnailator

blueimp/JavaScript-Load-Image

fex-team/webuploader

disintegration/imaging

Star history

Open-source alternatives to Compressorjs

coobird/thumbnailator

blueimp/JavaScript-Load-Image

fex-team/webuploader

disintegration/imaging