Top 21 Elixir Project Ideas for Beginners to Experts (2026)

If you’ve been anywhere near backend development lately, you’ve probably noticed Elixir popping up more and more. And honestly? It makes sense. Companies want apps that can handle thousands of users at once without crashing, and Elixir (built on Erlang’s rock-solid foundation) just handles that kind of pressure really well. It’s fast, it’s reliable, and it doesn’t fall apart when things get messy.

But here’s the thing — reading about Elixir and actually building with it are two very different experiences. That’s where this list comes in. We’ve put together a solid mix of elixir project ideas that’ll help you actually learn by doing, instead of just watching tutorials and nodding along.

Whether you just installed Elixir yesterday or you’ve been writing GenServers for a while now, there’s something here for you. We’ve covered beginner-friendly stuff all the way up to more advanced, portfolio-worthy builds.

What Is Elixir?

Elixir is a programming language built on top of Erlang, which has been running phone networks and other “can’t ever go down” systems since the 80s. It was created by José Valim back in 2011 because he wanted something that felt modern and friendly to write, but still had all that battle-tested reliability underneath. So you get clean, readable syntax on top of a system that was basically designed to survive chaos.

What makes Elixir stand out is how well it handles multiple things happening at once. Instead of crashing when one part breaks, it just restarts that piece and keeps going — kind of like how your phone can drop one app without shutting the whole thing down. That’s a big reason developers reach for it when building chat apps, real-time systems, or anything that needs to stay up no matter what.

Why Build Elixir Project Ideas Into Your Learning Path?

Let’s be real — you can watch a hundred Elixir tutorials and still freeze up the moment you try to build something on your own. That’s just how programming works. So here’s why working through some actual elixir project ideas matters more than passively consuming content:

1. You learn by breaking things: Reading about pattern matching is one thing. Watching your code blow up because you matched it wrong? That’s when it actually sticks.

2. Concepts like OTP and GenServers finally click: These sound scary in theory, but building even a small project makes them click way faster.

3. You build a portfolio without trying: Every project you finish is proof you can actually code, not just talk about it.

4. It keeps you motivated: Finishing something small feels way better than half-reading a textbook chapter.

5. You start thinking like an Elixir dev, not just someone translating from another language.

Also Read: If you’re into exploring different languages, you might also like our list of Zig project ideas — another great option if you want something low-level and fast.

Best Elixir Project Ideas for Beginners

If you’re just starting out, don’t overthink this — pick something small, get it working (even if it’s ugly), and move on to the next one. Here are some solid elixir project ideas to kick things off, plus a couple of beginner-friendly elixir project ideas for beginners that won’t leave you staring at your screen confused for three hours straight.

1. Command-Line To-Do List

This is basically the “hello world” of practical projects. You build a simple app that lets you add, remove, and check off tasks right from your terminal. It sounds boring, but it forces you to actually use Elixir’s data structures and recursion instead of just reading about them, which is exactly what you need early on.

Tools: Elixir, Mix, ETS (for storing tasks temporarily)

Resources:Elixir Getting Started Guide

Source code:github.com/topics/elixir-todo

2. Basic Calculator

Yeah, another classic — but hear me out. Building a calculator that handles addition, subtraction, multiplication, and division teaches you how Elixir handles functions and pattern matching without any of the confusing extra stuff. It’s a comfortable place to mess up and figure out why.

Tools: Elixir, IEx (interactive shell)

Resources:Elixir School – Basics

Source code:github.com/topics/elixir-calculator

3. Simple Web Scraper

Here you’ll grab data from a website (like article titles or prices) and print it out or save it somewhere. It’s a great intro to working with HTTP requests and parsing HTML, and it actually feels useful once it’s done — like you built a little robot that fetches stuff for you.

Tools: Elixir, HTTPoison, Floki

Resources:HTTPoison Docs

Source code:github.com/topics/elixir-scraper

4. Weather CLI App

This one connects to a free weather API and shows the forecast right in your terminal. It’s a nice step up because you’re dealing with real external data now, not just stuff you typed in yourself, and that alone teaches you a lot about handling errors gracefully.

Tools: Elixir, HTTPoison, Jason (for JSON parsing)

Resources:OpenWeatherMap API

Source code:github.com/topics/elixir-weather

5. URL Shortener

Think bit.ly, but your own tiny version. You take a long URL, generate a short code for it, and redirect people when they visit that short link. It’s a great intro to Phoenix (Elixir’s web framework) without getting overwhelmed by too many moving parts.

Tools: Elixir, Phoenix, Ecto, PostgreSQL

Resources:Phoenix Framework Guide

Source code:github.com/topics/url-shortener

6. Simple Blog Platform

This is where things start feeling like “real” development. You build a basic site where you can create, edit, and delete blog posts. It introduces you to databases, routing, and templates all in one project — a nice, satisfying combo.

Tools: Elixir, Phoenix, Ecto, PostgreSQL

Resources:Phoenix Ecto Guide

Source code:github.com/topics/phoenix-blog

7. Number Guessing Game

A fun, low-pressure way to practice loops, recursion, and user input. The computer picks a random number, and the user tries to guess it with hints along the way (“too high,” “too low”). Simple, but weirdly satisfying to build and play.

Tools: Elixir, IEx, :rand module

Resources:Elixir School – Enumerables

Source code:github.com/topics/elixir-game

Elixir Language Projects for Intermediate Developers

Once you’ve got the basics down, it’s time to stop building toy stuff and start building things that actually push you a little. This next batch of elixir project ideas leans more into Phoenix, real-time features, and the concurrency stuff Elixir is actually famous for. If you’ve been looking for elixir project ideas that feel a bit more “real,” this is your section.

8. Real-Time Chat App

This is basically the go-to project once you’re comfortable with the basics. You build a chat room where messages show up instantly for everyone connected, no page refresh needed. It’s your first real taste of Phoenix Channels and WebSockets, and honestly, it’s pretty satisfying to watch messages pop up live.

Tools: Elixir, Phoenix, Phoenix Channels, PostgreSQL

Resources:Phoenix Channels Guide

Source code:github.com/topics/phoenix-chat

9. REST API for a Task Manager

Here you’ll build a proper backend API — think endpoints for creating, updating, and deleting tasks, all returning JSON. It teaches you how Ecto handles database relationships and how to structure a real Phoenix app instead of just a single-page toy project.

Tools: Elixir, Phoenix, Ecto, Jason

Resources:Phoenix JSON API Guide

Source code:github.com/topics/phoenix-api

10. Background Job Queue

This one’s a bit more “behind the scenes” — you’ll build a system that processes tasks in the background instead of making users wait around. Think sending emails or resizing images without freezing up the whole app. It’s a great intro to GenServer and how Elixir handles concurrent work.

Tools: Elixir, GenServer, Oban (optional)

Resources:GenServer Docs

Source code:github.com/topics/elixir-job-queue

11. E-Commerce Product Catalog

You’ll build a small store backend — products, categories, maybe a basic cart system. It’s not as scary as it sounds, and it’s a good way to practice database relationships (like products belonging to categories) plus basic CRUD operations in a more “business-like” context.

Tools: Elixir, Phoenix, Ecto, PostgreSQL

Resources:Ecto Associations Guide

Source code:github.com/topics/phoenix-ecommerce

12. Polling/Voting App

People create polls, others vote, and results update live without refreshing. This one’s fun because you actually get to see LiveView in action — no separate JavaScript frontend needed, which honestly still feels like a bit of magic the first time you try it.

Tools: Elixir, Phoenix LiveView, PostgreSQL

Resources:Phoenix LiveView Docs

Source code:github.com/topics/phoenix-liveview

13. File Upload & Image Processor

Users upload an image, and your app automatically resizes or compresses it in the background. It’s a nice practical project that teaches you file handling, background processing, and dealing with external libraries — stuff you’ll actually run into in real jobs.

Tools: Elixir, Phoenix, Mogrify (image processing), GenServer

Resources:Mogrify on Hex

Source code:github.com/topics/elixir-image-processing

14. Notification System

Build something that sends real-time alerts — like “someone commented on your post” — the second they happen. This is where PubSub comes in, and once you get it working, you’ll start seeing why people rave about Elixir for anything real-time.

Tools: Elixir, Phoenix PubSub, Phoenix Channels

Resources:Phoenix PubSub Docs

Source code:github.com/topics/phoenix-pubsub

Unique Elixir Project Ideas for Advanced Learners

If you’ve made it this far, you’re not really a beginner anymore — so let’s get into the stuff that actually shows off what Elixir was built for. These elixir project ideas lean hard into distributed systems, fault tolerance, and the kind of concurrency magic that makes people fall in love with this language in the first place. Fair warning: some of these will take a few weekends, not an afternoon.

15. Distributed Chat System Across Multiple Nodes

Instead of one server handling everything, you’ll spread your chat app across multiple connected nodes that talk to each other. It’s a proper deep dive into Elixir’s distributed computing side, and it’ll finally make all that “let it crash” philosophy click when you watch one node fail and everything else just… keeps going.

Tools: Elixir, Distributed Erlang, Phoenix PubSub, libcluster

Resources:Libcluster Docs

Source code:github.com/topics/elixir-distributed

16. Real-Time Analytics Dashboard

Build a live dashboard that tracks stuff like website visits or app usage, updating in real time without refreshing. This one pushes you to combine LiveView, PubSub, and some data aggregation logic — basically everything you’ve learned so far, mashed into one genuinely useful project.

Tools: Elixir, Phoenix LiveView, Phoenix PubSub, PostgreSQL

Resources:LiveView Real-Time Guide

Source code:github.com/topics/liveview-dashboard

17. Custom Rate Limiter

Ever wonder how apps stop you from spamming an API? You’ll build that yourself using GenServer and ETS to track requests and block ones coming in too fast. It’s a smaller project, but it really teaches you how state management works under the hood in Elixir.

Tools: Elixir, GenServer, ETS

Resources:ETS Documentation

Source code:github.com/topics/elixir-rate-limiter

18. Multiplayer Game Server

Build the backend for a simple real-time multiplayer game — think tic-tac-toe or a basic card game where two people play live against each other. It’s a fun way to really test out Phoenix Channels under pressure, since game state needs to sync instantly between players.

Tools: Elixir, Phoenix Channels, GenServer

Resources:Phoenix Channels Guide

Source code:github.com/topics/elixir-game-server

19. Custom Mix Task or Hex Package

Instead of building an app, you build a tool other Elixir developers can actually use — like a code generator or a helper library. Publishing something to Hex (Elixir’s package manager) feels genuinely different from a personal project. People might actually install what you made.

Tools: Elixir, Mix, ExDoc, Hex

Resources:Publishing to Hex Guide

Source code:github.com/topics/elixir-library

20. Event-Sourced Order System

Instead of just storing “the current state” of an order, you store every single event that happened to it (created, paid, shipped, etc.) and rebuild the state from that history. It’s a different way of thinking about data, and it’s genuinely useful for anything that needs an audit trail.

Tools: Elixir, Commanded, EventStore, PostgreSQL

Resources:Commanded Docs

Source code:github.com/topics/event-sourcing-elixir

21. Fault-Tolerant Microservice with Supervision Trees

Build a small service where different parts are supervised separately, so if one piece crashes (say, the part that talks to an external API), the rest of your app doesn’t go down with it. This is peak “Elixir showing off,” honestly, and it’s a great one to talk about in interviews.

Tools: Elixir, OTP, Supervisor, DynamicSupervisor

Resources:Supervisor Docs

Source code:github.com/topics/elixir-supervisor

How to Choose the Right Elixir Project Ideas for Your Goals

With so many options on this list, it’s easy to just pick randomly and hope for the best. But if you actually want to get something out of it, here’s how to narrow things down:

1. Know your skill level: Don’t jump into a distributed chat system if you’re still shaky on pattern matching — you’ll just get frustrated and quit halfway through.

2. Pick based on what you want to learn: Want to get better at Phoenix? Pick something web-heavy. Curious about concurrency? Go for anything using GenServer.

3. Match it to job requirements: If you’re job hunting, lean toward Phoenix, LiveView, and OTP-based stuff — that’s what most listings mention.

4. Choose something you’d actually use: You’ll finish way more projects when you’re a little bit excited about the outcome, not just doing it “because you should.”

5. Start small on purpose: A finished simple project beats an abandoned ambitious one, every time.

Tips for Successfully Completing Elixir Project Ideas

Starting a project is the easy part — actually finishing it is where most people fall off. So before you dive into any of these elixir project ideas, here are a few tips that’ll save you some headaches:

1. Start smaller than you think you need to: It’s tempting to plan out some huge feature-packed app, but trimming it down to the core function first means you’ll actually ship something instead of abandoning it in week two.

2. Use the Elixir community when you’re stuck: The Elixir Forum and Discord are genuinely helpful, and people there don’t mind beginner questions — everyone’s asked them at some point.

3. Write tests as you go, not after: It feels slower at first, but catching bugs early saves way more time than debugging a mess later.

4. Commit often: Even messy, half-working code deserves a commit. Future you will thank present you.

5. Don’t aim for perfect: Done and a little rough beats perfect and never finished.

Final Thoughts

A solid mix of elixir project ideas to keep you busy for a while, whether you’re just getting comfortable with the syntax or you’re ready to mess around with distributed systems. Honestly, the biggest thing that trips people up isn’t picking the “right” project, it’s overthinking it and never actually starting one.

Just grab something from this list that sounds even a little interesting, open your editor, and start typing. You’ll hit bugs, you’ll get stuck, you’ll probably want to close your laptop at some point — and that’s all part of it. Every project you finish, even the small ones, makes you a noticeably better Elixir developer than you were before.

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