Open-source alternatives to Blurhash

Mozjpeg is a high-performance C library for encoding, decoding, and transcoding JPEG images. It serves as a binary-compatible, drop-in replacement for standard JPEG libraries, maintaining existing function signatures to improve compression efficiency without requiring changes to application logic. The library functions as an image optimizer that reduces file sizes through lossless progressive encoding and coefficient optimization. It utilizes trellis-based quantization and SIMD-accelerated processing to optimize the trade-off between visual quality and file size. Its broader capabilities inc

Hashids is a PHP library for the reversible transformation of numeric and hexadecimal database keys into non-sequential, masked alphanumeric identifiers. It functions as a tool to encode numeric database identifiers into short strings and decode them back to their original values. The project focuses on hiding internal database primary keys and sequential record counts in public URLs to prevent data scraping and exposure. It utilizes a secret salt for deterministic mapping and supports customizable character sets to ensure unique identifiers across different projects. The library provides ut

shortid is a library for creating compact, non-sequential strings used as unique identifiers for database records and public URLs. It functions as a URL-friendly identifier utility designed to produce short alphanumeric strings. The project allows for the use of a custom alphabet to control the visual appearance of identifiers and avoid ambiguity. This custom character set mapping ensures that generated keys meet specific formatting or branding requirements. The system includes capabilities for non-sequential key generation to prevent resource enumeration, as well as tools to validate whethe

Open Location Code is a geocoding library and toolset used to transform global latitude and longitude coordinates into standardized, human-readable alphanumeric digital addresses and back again. It functions as an offline location coding system that generates unique identifiers for any location on Earth, specifically providing digital addresses for areas where formal street addresses or postal systems are missing. The system operates as a stateless algorithmic process, allowing coordinates to be encoded and decoded without the need for network access, internet connections, or external databas

This project is an open-source visual dataset and machine learning image library. It provides large-scale collections of high-quality photos and metadata designed for training computer vision models and conducting research into image categorization and retrieval. The repository specifically offers semantic search datasets that pair images with AI and human-generated keywords to analyze search intent and visual metaphors. It also serves as an image metadata archive, providing structured EXIF data and camera specifications for technical analysis. The available data covers broad capability area

Lazyload is a JavaScript plugin that defers the loading of images until they scroll into the viewport, using the browser's Intersection Observer API to detect visibility. It is designed to speed up initial page load and save bandwidth by delaying off-screen images, and includes a jQuery-compatible wrapper for drop-in integration with existing jQuery code. The plugin distinguishes itself through support for responsive images, loading different sources based on screen size, and a blur-up placeholder effect that shows a low-resolution image that transitions into the sharp version once fully load

SVGEdit is a browser-based SVG editor and canvas engine used for creating and modifying scalable vector graphics files. It provides a web interface for vector design and functions as an embeddable editor that can be injected into HTML elements within other web applications. The project allows for the development of custom SVG tools and the construction of bespoke vector graphics editors by utilizing its standalone drawing engine.

This project is an acoustic keystroke recognition system and audio side-channel analysis tool. It identifies typed text by analyzing audio recordings of keyboard sounds through waveform correlation and linguistic frequency analysis. The system distinguishes itself by combining digital signal processing with a substitution cipher decryptor. It uses simulated annealing and n-gram probability maps to recover plaintext from encoded strings and identifies specific keys by comparing captured waveforms against trained sound profiles. The toolkit covers a broad range of capabilities, including real-