Open Source Elixir Software - Page 3
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Elixir Software
Browse free open source Elixir Software and projects below. Use the toggles on the left to filter open source Elixir Software by OS, license, language, programming language, and project status.
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Sequin
Postgres change data capture to streams and queues like Kafka
Sequin is a change data capture (CDC) system that replicates API data to Postgres in real time. It syncs services like Stripe, Salesforce, and GitHub into PostgreSQL tables, enabling developers to query third-party data with standard SQL. Sequin is ideal for building data-driven applications that need immediate visibility into external SaaS platforms. -
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Überauth
An Elixir Authentication System for Plug-based Web Applications
Ueberauth is a two-phase authentication framework that provides a clear API, allowing for many strategies to be created and shared within the community. It is heavily inspired by Omniauth. You could call it a port but it is significantly different in operation, but almost the same concept. Huge hat tip to Intridea. Ueberauth provides only the initial authentication challenge, (initial OAuth flow, collecting the information from a login form, etc). It does not authenticate each request, that's up to your application. You could issue a token or put the result into a session for the needs of your application. Libraries like Guardian can help you with that aspect of authentication. Strategies implement the two phases and then may allow the request to flow through to your downstream plugs. Implementing the request and callback phases is optional depending on the strategies requirements. If a strategy does not redirect, the request will be decorated with Ueberauth information. -
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Elixir Code Smells
Catalog of Elixir-specific code smells
Elixir-Code-Smells is a research-driven catalog of code smells specific to the Elixir programming language. Unlike generic code smell lists, this project identifies issues emerging from Elixir’s functional, concurrent, and process-based nature. Initially compiled via grey literature (blogs, talks, forums), the catalog now includes 23 Elixir-specific smells plus 12 traditional smells adapted to Elixir. Each entry documents the name, category, problem, example, refactoring strategy, and step-by-step treatments. The smells are grouped into two categories: design-related (coarse-grained, harder to detect, affecting architecture/processes) and low-level concerns (fine-grained, often readability and maintainability issues). The catalog evolves with community feedback and contributions, aiming to help developers recognize harmful patterns and apply disciplined refactoring to improve maintainability, testability, and performance in Elixir systems. -
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Exq
Job processing library for Elixir - compatible with Resque / Sidekiq
Exq is a job processing library compatible with Resque / Sidekiq for the Elixir language. Exq uses Redis as a store for background processing jobs. Exq handles concurrency, job persistence, job retries, reliable queueing and tracking so you don't have to. Jobs are persistent so they would survive across node restarts. You can use multiple Erlang nodes to process from the same pool of jobs. Exq uses a format that is Resque/Sidekiq compatible. This means you can use it to integrate with existing Rails / Django projects that also use a background job that's Resque compatible - typically with little or no changes needed to your existing apps. However, you can also use Exq standalone. You can also use the Sidekiq UI to view job statuses, as Exq is compatible with the Sidekiq stats format. You can run both Exq and Toniq in the same app for different workers. Exq supports uncapped amount of jobs running, or also allows a max limit per queue. -
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OAuth2 (Client)
An Elixir OAuth 2.0 Client Library
This library can be configured to handle encoding and decoding requests and responses automatically based on the accept and/or content-type headers. An Elixir OAuth 2.0 Client Library. This library can be configured to handle encoding and decoding requests and responses automatically based on the accept and/or content-type headers. The http client library used is tesla, the default adapter is Httpc, since it comes out of the box with every Erlang instance but you can easily change it to something better. -
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crawly
High-level web crawling and scraping framework for Elixir apps
Crawly is a high-level application framework for crawling websites and extracting structured data using the Elixir programming language. It provides a complete environment for building web crawlers that systematically visit pages, collect information, and transform that data into structured formats for further processing. Crawly is designed for tasks such as data mining, information processing, and building historical archives of web content. Crawly follows the Elixir and OTP architecture model, enabling concurrent and fault-tolerant crawling processes that can handle many requests efficiently. Developers define specialized components called spiders to control how pages are visited and how information is extracted from them. It also supports extensibility through middlewares, pipelines, and fetchers that allow customization of request handling, data processing, and crawling behavior. -
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Commanded EventStore
Event store using PostgreSQL for persistence
Commanded EventStore is an Elixir-based event store built for event-sourced systems using the Commanded framework. It stores domain events as immutable facts and provides mechanisms for publishing, persisting, and querying events. Built with PostgreSQL as its backend, it ensures strong consistency and is optimized for CQRS architectures. -
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Electric
Sync little subsets of your Postgres data into local apps and services
Swap out your queries, data fetching, and caching for bulletproof sync that just works. Electric syncs little subsets of your Postgres data into local apps and services. So you can have the data you need, in in-sync, wherever you need it. And you can level-up all the way to syncing into a local embedded PGlite database. With built-in persistence and live reactivity. -
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Elixir Companies
A list of companies currently using Elixir in production
elixir-companies is a community-maintained directory of organizations that use Elixir in production. It serves both as a discovery tool for developers curious about who is adopting the language and as a hiring signal for companies wishing to reach the Elixir community. The site categorizes entries by region, industry, and hiring status, making it easy to browse or filter by interests and location. Contributions are handled publicly via pull requests, with maintainers reviewing updates to ensure accuracy and consistency. Beyond simple listings, the project highlights the breadth of Elixir usage—from startups to large enterprises—and helps newcomers see real-world adoption. The codebase itself is an example Phoenix application, offering a transparent, collaborative model for community content. Over time, the directory has become a reference point frequently cited when assessing Elixir’s ecosystem health and job market. -
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ExMachina
Create test data for Elixir applications
ExMachina is part of the thoughtbot Elixir family of projects. ExMachina makes it easy to create test data and associations. It works great with Ecto, but is configurable to work with any persistence library. And start the ExMachina application. For most projects (such as Phoenix apps) this will mean adding :ex_machina to the list of applications in mix.exs. You can skip this step if you are using Elixir 1.4 or later. Add your factory module inside test/support so that it is only compiled in the test environment. build/2 is a function call. As such, it gets evaluated immediately. By default, ExMachina will merge the attributes you pass into build/insert into your factory. But if you want full control of your attributes, you can define your factory as accepting one argument, the attributes being passed into your factory. -
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Fast Elixir
Writing Fast Elixir. Collect Common Elixir idioms
Fast Elixir is a curated collection of performance-focused best practices, idioms, and code snippets for writing efficient Elixir programs. The project documents common patterns in Elixir and compares their relative performance using benchmarks to guide developers toward faster and more memory-friendly code. By showcasing side-by-side examples, it highlights not only which approaches are faster but also why certain functions or techniques should be preferred in different scenarios. The repository is designed as a practical reference for developers who want to optimize Elixir applications without diving into premature micro-optimizations. Its goal is not just speed but also clarity, ensuring that performance improvements do not come at the cost of readability and maintainability. With continuously updated examples, Fast Elixir helps both beginners and experienced Elixir programmers adopt better habits and avoid slow patterns. -
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GraphQL Elixir
GraphQL Elixir
An Elixir implementation of Facebook's GraphQL. This is the core GraphQL query parsing and execution engine whose goal is to be transport, server and datastore agnostic. In order to setup an HTTP server (ie Phoenix) to handle GraphQL queries you will need plug_graphql. Examples for Phoenix can be found at hello_graphql_phoenix, so look here for a starting point for writing your own schemas. Other ways of handling queries will be added in due course. Tokenization is done with leex and parsing with yecc. Both very useful Erlang tools for parsing. Yecc in particular is used by Elixir itself. -
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Magnetissimo
Web application that indexes all popular torrent sites
Magnetissimo is a self-hosted Elixir-based web application that crawls and indexes multiple popular torrent sites and stores magnet links in a local database—designed to run without JavaScript and optimized for high performance using Elixir’s GenServer and the BEAM VM. No JavaScript frontend—relies entirely on server-rendered content. High performance via Elixir’s GenServer and BEAM concurrency model. Easy integration with tools like Sonarr and Radarr. Readable, maintainable, and lean codebase. -
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Phoenix LiveDashboard
Realtime dashboard with metrics, request logging, plus storage, OS
Phoenix LiveDashboard is an interactive monitoring and debugging tool for Elixir applications, integrated directly into Phoenix. It offers real-time insights into system metrics such as memory, CPU, and process activity, as well as introspection of applications, supervision trees, and running processes. Built on top of Phoenix LiveView, it updates dashboards live without requiring page reloads. Developers can drill into request logs, Ecto queries, and telemetry events to diagnose performance issues. It also supports extensibility, allowing custom metrics and panels to be added for application-specific monitoring. LiveDashboard has become a staple for Elixir developers, giving them production-grade visibility into their systems without external monitoring services. -
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Horde
Horde is a distributed Supervisor and Registry
Horde provides a distributed, fault-tolerant Registry and DynamicSupervisor for Elixir applications, letting you run and manage processes across clustered nodes as if they lived on a single machine. It relies on conflict-free replicated data types (CRDTs) to converge membership and process ownership without a central leader, so cluster topology can change freely as nodes join or leave. With Horde.Registry you register processes globally and look them up anywhere, while Horde.DynamicSupervisor starts and migrates children across nodes, rebalancing as capacity or health changes. Because everything runs under OTP supervision, failures are isolated and recoveries are automatic, even during network partitions or rolling deploys. It integrates naturally with common clustering tools and plays well with PubSub, job systems, and presence tracking. The result is predictable, configuration-driven distribution that removes a lot of custom glue typically needed for multi-node Elixir systems. -
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Mydia
Your personal media companion, built with Phoenix LiveView
Mydia is a modern, self-hosted media management platform for tracking, organizing, and monitoring movies and TV shows, built with Phoenix LiveView for a highly responsive, real-time UI. It aims to function as a “personal media companion,” giving you a unified dashboard that pulls rich metadata and keeps your library information up to date as your collection grows. The system supports automation workflows around acquiring and managing media, including quality profiles and smarter release selection, so it can act as a hub rather than just a catalog. It integrates with common download clients and indexers, enabling an end-to-end workflow where requests, discovery, and acquisition are connected through a single interface. Mydia also supports multi-user setups with roles and request workflows, making it usable in households or shared servers without giving everyone full administrative power. -
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Supabase Realtime
Listen to your to PostgreSQL database in realtime via websockets
Supabase is an open-source Firebase alternative. Start your project with a Postgres database, Authentication, instant APIs, Edge Functions, Realtime subscriptions, and Storage. Every project is a full Postgres database, the world's most trusted relational database. Add user sign ups and logins, securing your data with Row Level Security. Store, organize, and serve large files. Any media, including videos and images. Write custom code without deploying or scaling servers. Supported by a network of early advocates, contributors, and champions. We introspect your database to provide APIs instantly. Stop building repetitive CRUD endpoints and focus on your product. Type definitions built directly from your database schema. Use Supabase in the browser without a build process. Develop locally and push to production when you're ready. -
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Discord.SortedSet
Elixir SortedSet backed by a Rust-based NIF
SortedSet NIF is a performant and reliable sorted set data structure for Elixir, implemented in Rust using the Rustler crate to take advantage of native performance while maintaining seamless integration with the BEAM ecosystem. It provides ordering and uniqueness guarantees, with all terms stored according to Elixir’s built-in sorting rules. Internally, it uses a vector of vectors layout rather than a single vector to minimize costly reallocations, allowing efficient bucket pointer copying instead of expensive term copying during growth. This design achieves a balance between performance and simplicity, and developers can customize bucket sizes for specific workloads, with a default of 500 offering solid performance across common scenarios. SortedSet extends beyond traditional set semantics by providing indexing, random access, and slice operations thanks to its deterministic ordering. -
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Elixir Koans
Elixir learning exercises
Elixir Koans is an interactive learning project designed to teach the fundamentals of the Elixir programming language through a series of self-guided coding exercises. Inspired by the style of koans used in other programming communities, it provides incomplete code snippets and failing tests that learners must solve to progress. Each exercise builds on the previous one, gradually introducing core concepts such as pattern matching, recursion, processes, and concurrency in Elixir. By debugging and filling in missing pieces, users gain practical, hands-on experience while reinforcing theoretical knowledge. The project is ideal for both complete beginners and developers transitioning from other languages who want to learn Elixir in a structured, exploratory way. Its design emphasizes discovery, experimentation, and reflection, making it a powerful tool for deepening understanding of Elixir’s unique paradigms. -
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HTTPoison
Yet Another HTTP client for Elixir powered by hackney
HTTP client for Elixir, based on HTTPotion. HTTPoison uses hackney to execute HTTP requests instead of ibrowse. Using hackney we work only with binaries instead of string lists. First, add HTTPoison to your mix.exs dependencies. Add :httpoison to your applications list if your Elixir version is 1.3 or lower. You can also easily pattern match on the HTTPoison.Response struct. There are a number of supported options(not to be confused with the HTTP options method), documented here, that can be added to your request. The example below shows the use of the :ssl and :recv_timeout options for a post request to an api that requires a bearer token. The :ssl option allows you to set options accepted by the Erlang SSL module, and :recv_timeout sets a timeout on receiving a response, the default is 5000ms. -
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Hound
Elixir library for writing integration tests and browser automation
Hound is an Elixir library for browser automation and integration testing. It wraps the WebDriver protocol, allowing developers to write ExUnit tests that control browsers like Firefox, Chrome, or PhantomJS via Selenium or ChromeDriver. Hound supports parallel sessions, asynchronous test execution, JavaScript-heavy interactions, screenshots, and more—all directly in Elixir test suites. -
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Jason
A blazing fast JSON parser and generator in pure Elixir
A blazing-fast JSON parser and generator in pure Elixir. The parser and generator are at least twice as fast as other Elixir/Erlang libraries (most notably Poison). The performance is comparable to jiffy, which is implemented in C as a NIF. Jason is usually only twice as slow. Both the parser and generator fully conform to RFC 8259 and ECMA 404 standards. The parser is tested using JSONTestSuite. The package can be installed by adding jason to your list of dependencies in mix.exs. Jason follows the JSON spec more strictly, for example, it does not allow unescaped newline characters in JSON strings - e.g. "\"\n\"" will produce a decoding error. No support for decoding into data structures (the as: option). No built-in encoders for MapSet, Range and Stream. No support for encoding arbitrary structs - explicit implementation of the Jason.Encoder protocol is always required. Different pretty-printing customization options (default pretty: true works the same). -
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Manifold
Fast batch message passing between nodes for Erlang/Elixir
Erlang and Elixir make it very easy to send messages between processes even across the network, but there are a few pitfalls. Sending a message to many PIDs across the network also copies the message across the network many times. Send calls cost about 70 µs/op so doing them in a loop eventually gets too expensive. Manifold distributes the work of sending messages to the remote nodes of the PIDs, which guarantees that the sending processes at most only calls send/2 equal to the number of involved remote nodes. Manifold does this by first grouping PIDs by their remote node and then sending to Manifold.Partitioner on each of those nodes. The partitioner then consistently hashes the PIDs using :erlang.phash2/2, groups them by the number of cores, sends to child workers, and finally those workers send to the actual PIDs. This ensures the partitioner does not get overloaded and still provides the linearizability guaranteed by send/2. -
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OpenAI Symphony
Symphony turns work into isolated, autonomous implementation runs
Symphony is an open-source framework designed to transform project tasks into autonomous implementation runs managed by AI coding agents. It allows teams to manage and prioritize work while the system automatically assigns coding agents to complete tasks. Instead of directly supervising AI agents, engineers can oversee higher-level workflows and project outcomes. Symphony integrates with project management tools to detect new tasks and initiate isolated environments where agents implement solutions. Each run generates proof of work such as CI results, pull requests, code reviews, and analysis to validate the completed task. By automating execution and verification, Symphony helps engineering teams scale development workflows with minimal manual oversight. -
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Poxa
Pusher server implementation compatible with Pusher client libraries
Pusher server implementation is compatible with Pusher client libraries. Open Pusher implementation compatible with Pusher libraries. It's designed to be used as a single registered app with id, secret, and key defined on start. Poxa is a standalone elixir server implementation of the Pusher protocol. Docker images are automatically built by Docker Hub. They are available at Docker Hub. One can generate it using: docker build -t local/poxa. Poxa uses gproc extensively to register websocket connections as channels. So, when a client subscribes for channel 'example-channel', the websocket connection (which is a elixir process) is "tagged" as {pusher, example-channel}. When a pusher event is triggered on the 'example-channel', every websocket matching the tag receives the event.
