Open-source alternatives to Android Sms Gateway

NATS Server is a high-performance, lightweight messaging system designed for cloud-native applications, edge computing, and distributed microservices. It functions as a distributed publish-subscribe broker that routes messages using hierarchical, dot-separated subject strings, enabling decoupled communication between services without requiring centralized broker lookups. The system supports core messaging patterns including asynchronous publish-subscribe, request-reply, and load-balanced queue processing. The platform distinguishes itself through a decentralized architecture that eliminates t

Boto3 is the AWS SDK for Python, providing a programmatic interface for managing and automating AWS cloud infrastructure and services. It serves as a cloud management API client and resource manager for provisioning, configuring, and scaling virtual servers, databases, and storage. The library enables the implementation of infrastructure-as-code through declarative templates and scripts, allowing for the deployment of identical resource stacks across multiple accounts and geographic regions. It also provides a framework for coordinating distributed workflows, serverless functions, and contain

Pangolin is a zero-trust remote access platform designed to provide secure, identity-aware connectivity to private network resources. It functions as a cloud-native network controller that orchestrates encrypted tunnels, traffic routing, and access policies across distributed environments. By leveraging WireGuard for secure data transport, the platform enables authenticated access to internal web applications, terminal sessions, and remote desktops without exposing services to the public internet. The platform distinguishes itself through a declarative infrastructure model that synchronizes n

Lets-chat is a self-hosted team communication platform and XMPP chat server designed for private messaging. It provides a containerized communication environment for small teams to exchange messages and files, featuring a programmable REST API for automating conversations and managing messages from external tools. The platform functions as an XMPP gateway and server, ensuring interoperability with other compliant messaging clients. It distinguishes itself by supporting enterprise identity management, allowing administrators to verify user identities through local accounts or external director

OctoPrint is a web-based platform for remotely controlling and monitoring 3D printers. It provides a browser dashboard to start, pause, cancel, and track print jobs, while streaming real-time printer status, temperature, and progress updates. The system is built around a plugin-based architecture that allows extending core functionality, and it offers a documented REST API for programmatic printer control and data management. The platform distinguishes itself through its comprehensive automation and extensibility capabilities. It supports event-driven workflows that automatically execute cust

Higress is an AI API gateway and cloud-native traffic manager that functions as a Kubernetes ingress controller. It provides a centralized system for routing, securing, and optimizing traffic directed toward large language models, AI agents, and microservice architectures. The project distinguishes itself through deep AI orchestration, including the ability to host and manage Model Context Protocol servers that transform REST APIs into tools for AI agents. It features specialized AI infrastructure for model request proxying, protocol translation across multiple providers, and semantic-based c

Ocelot is a .NET API gateway that functions as an HTTP reverse proxy to route, balance, and secure traffic between clients and backend services. It serves as a centralized manager for incoming requests, providing a single entry point for traffic orchestration. The project differentiates itself through dynamic request orchestration, allowing it to aggregate multiple backend service responses into a single result to minimize client network round trips. It also supports dynamic gateway configuration, enabling updates to system behavior and operational parameters without requiring a service resta

Resty is a high-level HTTP client library for Go designed for consuming REST services. It provides a streamlined interface for executing network requests, managing server-sent event streams, and automatically mapping JSON and XML responses into data structures. The library includes built-in mechanisms for service resilience and traffic management, such as circuit breakers to prevent cascading failures, token-bucket rate limiting, and automated request retries with exponential backoff. It also features client-side load balancing to distribute outgoing traffic across multiple base URLs and requ

HAProxy is a high-performance TCP and HTTP proxy that distributes traffic across multiple backend servers to ensure availability and fault tolerance for critical services. It operates in either TCP or HTTP mode, with an event-driven, single-threaded reactor that handles tens of thousands of connections without context switching, and supports kernel-level data transfer to minimize memory usage and latency. What distinguishes HAProxy is its configuration-file-first design, where all load-balancing rules and runtime behavior are defined in a declarative text file parsed at startup. It embeds a L

SMSBoom is an API-based message dispatcher and bulk SMS messaging tool. It functions as a utility for managing recipient lists and automating the delivery of text notifications to large groups. The tool operates by making HTTP requests to external third-party messaging service providers and API gateways to trigger cellular network transmissions. It manages mass SMS outreach by processing collections of phone numbers to dispatch high volumes of messages.

This project is a community-curated directory of open-source software designed for deployment in private server environments and home labs. It serves as a comprehensive resource for discovering independent, self-hosted alternatives to mainstream cloud services, enabling users to maintain full data ownership and control over their digital infrastructure. The directory is structured through a hierarchical taxonomy that organizes a vast collection of applications into logical categories, ranging from media management and data analytics to private communication and team productivity tools. It dis

This project is an AI model API gateway and proxy server designed to provide a unified interface for interacting with diverse artificial intelligence service providers. It functions as a centralized middleware platform that routes, load balances, and translates API requests across multiple models, enabling developers to access text, image, audio, and video generation capabilities through a single, standardized integration. The gateway distinguishes itself through comprehensive administrative and financial controls, including event-driven usage accounting, real-time token consumption tracking,

Keepalived is a high availability manager and virtual IP failover tool that ensures continuous service availability. It coordinates the migration of floating IP addresses between master and backup nodes using the Virtual Router Redundancy Protocol to manage router redundancy and seamless failover. The project distinguishes itself by integrating with the Linux kernel IPVS module to function as a transport-layer load balancer. It distributes network traffic across backend servers using various scheduling algorithms and forwarding methods such as NAT, direct routing, or tunneling. The system in

Pingora is a Rust-based framework for building high-performance network services, including HTTP reverse proxies, layer seven load balancers, and TLS termination proxies. It serves as an asynchronous network library designed to intercept and route HTTP, gRPC, and WebSocket traffic between clients and upstream backend servers. The project enables zero-downtime service updates by handing over listening sockets between processes during binary or configuration upgrades. It utilizes a programmable multi-phase pipeline to modify request and response bodies and headers, and it provides a pluggable T

MetalLB is a Kubernetes load balancer implementation and IP address manager designed for bare metal clusters. It functions as a networking tool that provides external connectivity and traffic distribution by assigning external IPv4 and IPv6 addresses to services. The project differentiates itself by providing two distinct advertisement modes. It can operate as a BGP routing controller, using the Border Gateway Protocol to announce service IPs to external routers with support for bidirectional forwarding detection and VRF-aware routing. Alternatively, it can act as a Layer 2 network advertiser

Hatchet is an open-source durable workflow engine and task orchestration platform. It provides a framework for building and executing fault-tolerant, multi-step pipelines as directed acyclic graphs (DAGs), with automatic retries, scheduling, and real-time observability. The system is built around durable task checkpointing, which persists execution state after each step so work can resume from the last checkpoint after a worker crash or restart, and it supports event-driven task resumption that pauses a task until a matching external event arrives. The platform distinguishes itself through it

Seesaw is a traffic distribution platform based on Linux Virtual Server technology. It functions as a load balancer for managing high-availability network clusters, utilizing a BGP anycast routing controller to advertise and withdraw virtual IP addresses to direct traffic to the nearest available node. The system includes a direct server return orchestrator that allows backend servers to send outbound traffic directly to clients. It also provides a cluster management command line interface for controlling reload configurations and triggering failovers between nodes. The platform covers backe

This project is a reference library of architectural blueprints, study materials, and design patterns for building scalable, high-availability distributed systems. It serves as a technical guide for scalability engineering, providing structural solutions for common engineering challenges. The repository focuses on distributed systems design, covering essential patterns for data replication, consensus algorithms, and transaction management. It distinguishes itself by offering detailed blueprints for specialized domains, including real-time data streaming, large-scale data storage, and high-ava

Converse.js is an embeddable, self-hosted XMPP chat client that runs entirely in the browser. It communicates with XMPP servers using standard XML stanzas over WebSocket or BOSH transports, and provides end-to-end encryption through the OMEMO protocol with double ratchet algorithm and X3DH key exchange. The client is built on a plugin-based architecture that allows extending core functionality at runtime without modifying the client itself, and uses a DOM-based rendering approach with an event-driven message bus for internal coordination. The client manages message history through XEP-0313 Me

httpsms is a programmable messaging platform that transforms Android hardware into a functional SMS gateway. By bridging mobile devices with web-based services, it enables bidirectional communication through a programmable interface that allows external software to send and receive text messages via HTTP requests. The platform distinguishes itself by providing a secure, automated infrastructure for managing high-volume messaging. It utilizes end-to-end payload encryption to protect sensitive data during transit and incorporates a rate-limited execution engine to regulate transmission frequenc

SMSBoom is an automated SMS bomber and bulk messaging tool designed to send a rapid succession of text messages to a target phone number or a list of multiple recipients. It functions as a bulk SMS sender that automates the dispatch of large volumes of text messages. The project manages mass communication workflows through automated text dispatch and bulk messaging capabilities. It utilizes a system for sending messages to multiple recipients simultaneously via automated messaging systems. The tool handles message dispatching via HTTP requests to third party gateways, employing concurrent re

WordPress is an open-source content management system and PHP-based application framework designed for building and maintaining websites. It functions as a visual, block-based website builder that allows users to construct layouts and manage digital content without manual code entry. The platform supports a wide range of operational needs, from managing individual sites to administering complex multi-site networks from a single installation. The system is distinguished by its highly extensible, plugin-driven modular architecture, which allows for the integration of third-party modules to add

Jitsi Meet is an open-source platform for real-time audio and video communication. It provides a complete infrastructure for hosting secure video conferences, supporting features such as screen sharing, messaging, and participant polling. The platform is designed for both standalone use and integration into external web or mobile applications. The system utilizes a selective forwarding unit architecture to route media streams between participants, ensuring efficient communication across multiple users. It relies on standardized real-time transport protocols to manage data transmission and inc

Sish is a reverse SSH proxy and tunneling server designed to expose local services to the internet. It functions as an SSH tunneling proxy that routes HTTP, WebSocket, and TCP traffic from a remote server to a local machine, enabling the creation of public URLs for local applications. The project distinguishes itself through a combination of an SNI proxy for routing encrypted TLS traffic without decryption and a TCP load balancer that distributes incoming requests across multiple backend targets. It also includes a dedicated service console for real-time inspection and debugging of forwarded

Baserow is a no-code relational database and application builder that allows users to create structured data tables and business tools through a visual interface. It functions as a headless REST API data backend and a self-hosted data workspace, providing a platform for managing collaborative databases while maintaining full control over data residency. The platform integrates large language models to serve as an LLM-powered data platform, capable of generating database structures, record content, and technical workflows from natural language. It also acts as a Model Context Protocol server,

useSend is an email marketing platform and transactional delivery system built to manage bulk campaigns and individual messages using AWS SES for delivery. It provides a RESTful API, an SMTP relay gateway, and a visual management interface for designing HTML templates and coordinating email broadcasts. The platform distinguishes itself by translating legacy SMTP traffic into modern API calls and implementing an event-driven webhook system. This system pushes real-time delivery, bounce, and click notifications to external servers using HMAC-SHA256 signed payloads to ensure authenticity. The s