Open-source alternatives to Varnish Cache

This project is an HTTP web server that delivers web content to clients using HTTP/1.1 and HTTP/2 protocols across various operating systems. It functions as a reverse proxy server, a rule-based URL rewriter, an SSL/TLS termination gateway, and a virtual host manager. The server is capable of hosting multiple distinct domains on a single instance by mapping requests to specific directory structures. It encrypts and decrypts network traffic at the server boundary to secure communication between clients and servers. Additionally, it transforms requested URLs into different paths using a regular

PgBouncer is a lightweight middleware proxy server and connection pooler for PostgreSQL. It acts as a database connection manager and load balancer, reducing system overhead by managing a pool of reusable connections and distributing incoming traffic across multiple backend servers. The project distinguishes itself through a protocol-level proxying approach that handles authentication and TLS encryption without parsing underlying SQL queries. It provides specialized support for mapping named prepared statements across different backend connections and implements a socket-sharing process model

The AWS Cloud Development Kit is an infrastructure-as-code framework that enables developers to define and provision cloud resources using familiar programming languages. By utilizing construct-based synthesis, it translates high-level, object-oriented code into declarative templates, allowing for the automated management of complex cloud environments through a centralized, code-driven control plane. The framework distinguishes itself through its ability to model infrastructure as a dependency-aware resource graph, ensuring that components are provisioned and updated in the correct order. It

node-http-proxy is a Node.js HTTP proxy library used for forwarding requests to target servers. It functions as reverse proxy middleware capable of mapping incoming routes to target destinations and transforming request and response data streams. The library includes a WebSocket proxy gateway that upgrades standard HTTP connections into bidirectional streams between clients and backend servers. It also provides a response transformer for modifying bodies, location headers, and cookie domains. The project covers traffic routing management via rule-based translation tables and secure connectio

Betwixt is a system-wide network monitor and web debugging proxy that captures network requests from any installed application. It functions as an HTTPS traffic inspector, routing operating system and command line interface traffic through a local proxy for analysis. The tool utilizes a Chrome DevTools compatible interface to render captured traffic, allowing for the inspection of requests and responses from non-browser sources. It performs man-in-the-middle HTTPS decryption by generating a trusted root certificate to inspect encrypted communication between clients and servers. The project c

gh-proxy is an HTTP reverse proxy designed to accelerate the download of GitHub releases, archives, and project files. It functions as a gateway and content cache that forwards requests to GitHub servers to reduce latency and increase delivery speeds. The project provides specialized support for private repository proxying by extracting authentication tokens directly from the request URL. It also implements access control mechanisms, including the use of blocked user lists to restrict unauthorized proxy usage. Traffic management is handled through file size limits that redirect oversized req

Varnish Cache is an HTTP reverse proxy cache, traffic manager, and edge content delivery tool. It functions as an HTTP accelerator that stores responses in memory to reduce backend load and improve delivery speed. The system also serves as a TLS termination proxy and a configuration engine using a compiled language to define request handling and caching logic. The project is distinguished by its compiled configuration language, which transforms specialized domain logic into machine code to execute request processing at line rate. It provides high-performance memory-centric storage and special

Ohm is a formal grammar parser generator and domain-specific language framework. It provides a system for defining custom languages to parse, validate, and extract data from input text, transforming raw strings into hierarchical abstract syntax trees based on specified formal rules. The project utilizes an Earley parsing algorithm, which allows it to support all context-free grammars, including those with left recursion and ambiguity, without requiring predefined operator precedence. It also includes a dedicated debugging toolkit for tracing and visualizing the step-by-step state transitions

CloudFlare-ImgBed is a serverless image hosting platform built on Cloudflare Workers, designed to accept, store, and serve images through a global edge network. It runs entirely on Cloudflare's serverless infrastructure, handling requests without persistent servers, and caches public responses at the edge for fast content delivery. The system authenticates programmatic access using time-limited API tokens and automatically converts uploaded images to WebP format while compressing oversized files during the upload process. The platform distinguishes itself through multi-backend storage routing

Zoraxy is a network administration tool centered on HTTP reverse proxy management. It provides a centralized graphical interface for routing web traffic from public domains to internal backend services, utilizing a Go-based proxy to intercept and forward requests. The project extends beyond standard web routing by offering a browser-based SSH interface for remote server administration and command execution. It also supports transport-layer TCP and WebSocket forwarding to manage non-HTTP traffic between external clients and internal ports. Broad capabilities include automated TLS certificate

This project is a Node.js HTTP reverse proxy middleware designed to route incoming HTTP and WebSocket traffic to target backend services. It functions as a dynamic routing engine and API gateway tool, providing the capability to consolidate multiple backend services behind a single entry point. The middleware features a WebSocket proxy bridge that manages protocol upgrade handshakes to maintain persistent bidirectional communication. It also includes a request and response transformer used to intercept and modify headers, bodies, and URL paths during transit. The system provides broad traffi

This project is a repository of proxy server addresses, providing a regularly updated dataset of HTTP, SOCKS4, and SOCKS5 endpoints. It functions as a directory for applications that require managed network routing, offering curated connection details to facilitate traffic management and infrastructure tasks. The system distinguishes itself through an automated harvesting pipeline that refreshes the proxy list on an hourly schedule. This process includes geospatial metadata enrichment, which appends location data to each entry, allowing for regional routing and the simulation of local user ac

Lucky is a connectivity and routing utility suite focused on SSL automation, dynamic DNS client services, NAT traversal, and port forwarding. It provides a network gateway management interface to coordinate public network access for internal services. The project distinguishes itself through a centralized web-based administration panel used to configure reverse proxy servers, manage ACME-based SSL certificate renewals via DNS provider APIs, and synchronize public IP addresses across multiple dynamic DNS providers. It also includes a NAT traversal tool using STUN to establish external connecti

AndroidVideoCache is a local proxy server and disk-based media cache for Android. It intercepts network requests to store streamed video data on the local file system, allowing for offline playback and reduced data usage. The project differentiates itself by functioning as an HTTP proxy cache that can inject custom request headers. This enables the delivery of authenticated video content by satisfying server-side security and authentication requirements during the caching process. The system manages storage through byte-level disk caching, URL-to-file mapping, and the enforcement of storage

This repository is a technical documentation site and a collection of guides and references for implementing networking, security, and cloud infrastructure services. It functions as a static-site generated portal and a headless content platform, separating source files from the presentation layer to enable flexible rendering. The project utilizes markdown-based documentation stored in a version-controlled Git repository. It provides specialized technical content including an AI platform documentation for building agents and managing inference, a cloud infrastructure guide for DNS and CDN conf

This project is a Bing AI proxy gateway and web-based chat interface. It functions as a Go reverse proxy that routes HTTP traffic to external AI endpoints, allowing users to bypass regional network restrictions and login requirements. The system utilizes SOCKS5 proxy tunneling and environment-variable configuration to circumvent IP-based blocking and regional firewalls. It manages authentication by injecting predefined session cookies into outgoing requests to maintain private AI sessions and unlock personalized features. The application integrates a Vue-based single page application for the

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

Nginx is a high-performance HTTP server and reverse proxy designed to handle high-concurrency traffic through an efficient, event-driven architecture. It functions as a versatile traffic management gateway and content delivery accelerator, providing the infrastructure necessary to route client requests, balance loads across backend servers, and serve static assets with minimal resource consumption. The project distinguishes itself through a master-worker process model that separates configuration management from request processing, ensuring stable operations under heavy load. Its modular requ

PeerTube is a decentralized, open-source video hosting platform that enables users to operate independent, interoperable servers. By utilizing the ActivityPub protocol, it connects these servers into a global, federated network where users can follow channels, discover content, and interact across different instances. The platform is designed to function as a self-hosted video content management system, providing a community-driven alternative to centralized media services. What distinguishes PeerTube is its hybrid approach to content delivery and infrastructure management. It integrates peer

CMake is a cross-platform build system generator and build automation tool. It is used to define build requirements and dependencies for C and C++ source code, managing the compilation and linking process across different operating systems. The project functions by generating platform-specific build files and scripts from a single configuration. This allows for the standardization of how software is compiled and packaged for compilers and development tools across various environments. The tool covers C++ project configuration and native application compilation for desktop and embedded system

Aerosolve is a machine learning framework designed for training and deploying interpretable models. It functions as a feature engineering tool and a model trainer that utilizes sparse feature modeling to simplify weight debugging and accelerate data iteration. The system includes a specialized domain-specific transformation language for converting raw data families into model-ready representations. It also provides capabilities for visual content analysis by mapping images into dense high-dimensional vector spaces to rank and organize data by style or content. The framework allows for human-

AndroidHttpCapture is a mobile application for intercepting and analyzing HTTP and HTTPS network traffic directly on an Android device. It functions as a local proxy server and traffic interceptor to capture and monitor requests and responses from other installed mobile applications. The tool provides capabilities for MITM HTTPS decryption through root certificate installation and supports exporting captured network sessions as HAR files for external analysis. It allows for real-time response body injection and the modification of request headers via user agent spoofing. The project includes

Awaitility is a Java asynchronous testing library and conditional polling framework. It provides a fluent domain-specific language to synchronize tests with asynchronous operations by polling for specific states or conditions. The library allows for the configuration of polling intervals, timeouts, and the assignment of specific threads or services to handle background polling. It includes mechanisms for deadlock detection, exception filtering to treat specific errors as false results, and the ability to fail fast when a prohibited condition is met. The framework covers state verification, i

Penrose is a compiler that transforms structured mathematical notation into optimized SVG diagrams. It uses a three-stage pipeline of separate domain, substance, and style files to define mathematical objects, relationships, and visual presentation, then solves continuous optimization problems with user-defined spatial constraints and objectives to automatically arrange diagram elements. The system separates diagram content from visual style using distinct declarative languages, and provides a typed domain language with subtype hierarchies for mathematical objects. It supports embedding compi

This project is a Ruby-based package definition repository that functions as a cross-platform package manager and software dependency resolver for macOS and Linux. It provides a centralized system for installing, updating, and managing software through a Git-based distribution model. The system distinguishes itself through a binary package distribution network that produces pre-compiled bottles to avoid local compilation from source. It utilizes a Ruby-based domain specific language to define installation recipes and employs a distributed version control architecture to synchronize these defi

Premake is a build system generator and cross-platform build configuration tool. It functions as a scripting engine that transforms scripted workspace definitions into native project files for multiple build toolsets and compilers. Additionally, it can generate JSON-formatted compilation databases for use with language servers and static analysis tools. The project distinguishes itself through a programmable runtime that allows for internal function hooking and the interception of build logic. This extensibility enables users to create custom toolset generators, implement modular extensions f

PureScript is a statically typed, purely functional programming language that compiles to JavaScript. It is designed as a cross-platform frontend language for building safe web applications, utilizing a static type system and a JavaScript compiler to ensure program correctness across browser and server environments. The language is distinguished by its emphasis on mathematical purity, featuring a robust type system with first-class support for monads. It provides a sophisticated toolset for static verification, including algebraic data types, type classes, and automatic type inference to reje