Open-source alternatives to Imageproxy

This project is a Spring Boot API starter kit and RESTful project skeleton designed for building backend services. It provides a foundational codebase that implements a layered service architecture and standardized directory structures to organize controllers, services, and data mappers. The project features a MyBatis CRUD boilerplate generator that automates the creation of models and controllers from database tables using customizable templates. It includes a security framework for protecting endpoints via interface signature authentication to verify user identity and request authorization.

Imaginary is a self-hosted HTTP server for image processing that applies transformations like resizing, cropping, rotating, and format conversion through URL parameters. It operates as a stateless request-response pipeline, processing images fetched from remote URLs or served from a local directory without requiring client-side dependencies. The server distinguishes itself through its security and access control capabilities, offering optional API key validation, HMAC-signed URL verification, and remote origin whitelisting to restrict which image sources are permitted. It also provides a heal

Thumbor is a dynamic image processing service and proxy server that resizes, crops, and filters images on demand via URL parameters. It functions as a URL-based image manipulator that generates specific image versions from source assets to optimize web delivery. The system includes a smart cropping engine that uses facial feature detection and computer vision to automatically center thumbnails on the most relevant visual content. To prevent unauthorized parameter tampering and malicious requests, it employs signature-based request validation and domain-based source whitelisting. Broad capabi

WeiXinMPSDK is a .NET software development kit designed to integrate WeChat services, official accounts, and mini programs into applications. It provides a multi-platform bot framework and a programmatic interface to interact with official, mini, and corporate accounts across the WeChat ecosystem. The project features interface-based platform abstraction and logic unification, allowing a single codebase to target multiple target platforms. It includes a messaging middleware for routing incoming requests and a distributed caching layer using providers like Redis or Memcached to synchronize ses

Imagine is an object-oriented PHP image processing library and manipulation framework. It provides a unified interface for performing transformations, cropping, and scaling images across different backend processing engines. The library abstracts multiple underlying image processing drivers through a common adapter-based interface, ensuring consistent API behavior. It utilizes a unified object model to map high-level requests to engine-specific operations and employs a lazy-evaluation transformation queue to defer the execution of filters until the final output is requested. Its capabilities

This project is a modular image manipulation framework and processing pipeline library designed for Ruby applications. It provides a programmable interface for executing complex image transformations, including resizing, cropping, rotating, and compositing, while managing file input and output parameters. The library distinguishes itself through a fluent, chainable interface that allows developers to construct sophisticated processing workflows by linking modular operations together. It functions as an image transformation engine that delegates heavy lifting to external native binary tools, e

minio-go is a client library and software development kit for interacting with S3-compatible object storage. It provides a programmatic interface for Go applications to manage buckets and objects using the S3 protocol. The library enables the execution of complex storage operations, including multi-part uploads for large datasets, data synchronization between filesystems, and the management of bucket lifecycle and replication policies. It also supports advanced data retrieval through object searching and SQL-based querying of stored data. The toolkit covers a broad range of administrative an

Jeepay is an open-source payment gateway that accepts payments through WeChat Pay, Alipay, and UnionPay from a single integrated system. It functions as a multi-channel payment platform with aggregated QR code generation, allowing customers to scan one code and pay with any supported method, while also providing multi-merchant account management for onboarding and isolating independent merchants with their own payment configurations. The system secures all API requests and responses using cryptographic signatures to verify authenticity and prevent tampering. It delivers asynchronous payment r

This package provides a framework for receiving, verifying, and processing incoming webhooks within Laravel applications. It acts as a consumer for event streams, utilizing middleware to intercept HTTP requests, validate their authenticity through cryptographic signature verification, and route payloads to dedicated background jobs. The system distinguishes itself by offering granular control over multiple external service integrations, allowing developers to define unique configurations and endpoints for each provider. It ensures reliable operations by persisting raw request headers and payl

This project is a PHP implementation for automating messages, managing custom menus, and handling media uploads for the WeChat ecosystem. It serves as a social media API wrapper, an OAuth 2.0 client library, and a toolkit for enterprise messaging and payment integration. The library distinguishes itself by providing dedicated workflows for official account integration and enterprise management, including the coordination of corporate organizational structures and employee directories. It also includes specialized tools for marketing automation, such as the issuance of digital coupons and the

Easegress is a cloud-native traffic orchestration platform that functions as a multi-protocol API gateway and service mesh proxy. It routes, transforms, and orchestrates HTTP and MQTT traffic through configurable filter chains, providing high availability, security controls, and resilience for backend services. The platform integrates with service discovery systems like Kubernetes, Consul, and Eureka to dynamically route traffic to discovered services with automatic failover and health monitoring. The system distinguishes itself through a pipeline-based filter chain architecture where request

Spatie's Laravel Medialibrary is a plugin for the Laravel framework that attaches uploaded files to Eloquent models and organizes them into named collections for retrieval. It functions as both a file attachment system and an image manipulation library, allowing developers to associate files with database records through a dedicated media collection interface. The library groups related files under named collections so each model can hold multiple distinct sets of media, and it resizes, crops, or applies filters to images on the fly without altering the original file. It also generates derive

wechatpy is a Python API SDK designed for interacting with official accounts, mini programs, and corporate communication APIs. It provides a unified interface for managing users, media, and messages, and includes a bot framework for processing incoming events and generating structured responses. The project implements a component-based client factory to perform actions across different account types and orchestrates OAuth2 flows for identity verification. It features an event-driven bot architecture and a pluggable token storage system to persist authentication sessions across environments.

WeRoBot is a chatbot development framework and API integration library designed for building automated bots and managing interactions for WeChat official accounts. It provides a structured environment for processing user inputs and delivering programmed responses through a dedicated message routing engine. The framework distinguishes itself with a stateful session manager that persists user data across interactions using pluggable storage backends. It also features a routing system that parses XML payloads and directs traffic to specific handlers based on content, events, or text patterns. T

Gifsicle is a command-line image processor and animation editor used for creating, editing, and optimizing GIF images. It functions as a utility for assembling static images into animations, extracting individual frames from existing sequences, and manipulating GIF metadata. The tool distinguishes itself through specialized optimization capabilities that reduce file sizes by removing redundant pixels and employing lossy compression. It manages color palettes through quantization and colormap conversion to ensure display compatibility and reduce bit-depth. Broad capabilities include image tra

go-fastdfs is a distributed file system and object storage server designed for building private cloud storage. It provides a FastDFS compatible storage implementation that manages clusters of storage nodes to handle large-scale file uploads and downloads. The system focuses on high availability through a decentralized architecture that automatically synchronizes data and repairs failures across multiple machines without a central coordinator. It specifically supports resumable file storage via HTTP, allowing large transfers to be paused and resumed from the last successful byte to handle netw

AdguardFilters is a collection of curated adblock filter lists, content blocking rulesets, and DNS blocklists. Its primary purpose is to provide the rules necessary to identify and remove advertisements, tracking scripts, and intrusive elements across web browsers and applications. The project includes specialized rules for cosmetic filtering to hide layout gaps and a malware domain database to block phishing and spyware destinations. It provides distinct filtering sets for different regions and purposes, such as social media blocking. The repository covers broad capability areas including m

AlamofireImage is an image downloading and caching library designed as an extension for Alamofire. It provides a serialization framework to convert network responses into image objects and a memory-based caching system to reduce redundant network requests. The project features a variant-aware asynchronous cache that stores both original images and their filtered versions separately. It includes tools for animating the replacement of placeholder images with downloaded content through various transition effects. The library covers image acquisition through parallel downloading and prioritized

oauth2_proxy is an OAuth2 reverse proxy and authentication gateway that protects upstream services by requiring users to authenticate through external identity providers. It acts as a secure login layer for backend applications that lack built-in user authentication. The project provides centralized access control by restricting entry based on email domains, organization membership, or approved user lists. It integrates with identity providers via issuer URLs and client secrets, and supports additional authentication methods such as htpasswd files. The gateway manages secure identity forward

ImagePicker is a mobile image picker component that provides a unified interface for selecting photos from a gallery or capturing new images via the device camera. It serves as a branded UI media selector and a device camera integration layer. The system operates as a memory-optimized media gallery, utilizing asset identifiers instead of raw binary data to prevent application memory overload. It allows for the customization of the interface, including colors, fonts, and text labels, through a configuration object to match specific brand identities. The component includes capabilities for man

Simple Cache is a technical specification and interface standard for PHP applications. It defines a common set of methods for interacting with cache storage, ensuring that different storage implementations can be used interchangeably. As the PSR-16 implementation standard, it provides a consistent way for independent PHP libraries and frameworks to store and retrieve cached data. This interoperability allows software packages to work with any compliant cache backend without requiring changes to the application code. The specification focuses on standardizing cache interfaces and interactions

This repository serves as a comprehensive collection of reference implementations for the Remix web framework. It provides practical examples of full-stack web development, demonstrating how to build dynamic, server-rendered applications that bridge server-side logic with client-side interactivity. By leveraging a component-based architecture, these examples illustrate core patterns for managing data, routing, and user interfaces within a unified development environment. The collection highlights the framework's distinctive approach to web architecture, emphasizing server-side data loading an

SDWebImage is an asynchronous image loading library for iOS that provides a framework for fetching, decoding, and caching images. It consists of a core loading library, a decoding engine, a processing pipeline, and a caching system designed to reduce network traffic and improve load times. The project features a two-tier caching architecture that stores assets in both volatile memory and persistent disk storage. It distinguishes itself through a modular loader pattern and a plugin-based decoding system, which allow for the integration of custom storage engines and the support of non-standard

supabase-js is a comprehensive client library designed to integrate frontend applications with a hosted backend-as-a-service. It provides a unified interface for interacting with a PostgreSQL database, identity management systems, cloud object storage, and real-time data synchronization. The library features an isomorphic client design that operates across both browser and server environments. It distinguishes itself through a type-safe approach, utilizing TypeScript to map database schemas directly to client-side definitions, and employs a PostgREST-based API to translate JavaScript calls in

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

MediaWiki is an open-source wiki engine that serves as a collaborative content platform with full versioning, multilingual publishing, and extensibility. It is fundamentally a web-based system that enables multiple users to create, edit, and organize content together, while tracking every change through revision history for rollback. As an extensible web application and versioned content management system, MediaWiki provides the foundational capabilities for hosting wikis at any scale, from small team documentation to the world's largest collaborative reference sites. The platform distinguish

This project is a high-performance image transformation server and media optimization proxy designed to process, resize, and convert assets on the fly. It functions as a secure pipeline that fetches remote source files and applies transformations—such as cropping, watermarking, and visual filtering—directly through parameters defined in the request URL. The service distinguishes itself through a focus on secure, resource-aware delivery. It protects infrastructure by validating incoming requests with cryptographic signatures to prevent unauthorized access and enforces strict limits on file dim