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Phoenix Phoenix Guide

Best Hosting for Phoenix (2026)

Compare the best hosting platforms for Phoenix. We review Fly.io, Railway, and more with Elixir deployment patterns.

Phoenix applications benefit from platforms that support Elixir's BEAM VM. We've evaluated hosting options that handle Phoenix releases and clustering well.

Pourquoi C'est Important

Phoenix and Elixir's BEAM VM enable powerful features like clustering and live updates. The right platform supports these features while simplifying deployment.

Considérations Clés

01

BEAM Clustering

Elixir can cluster across nodes. Fly.io and some platforms support BEAM clustering for distributed features.

02

Mix Releases

Phoenix uses Mix releases for production. Compile on CI, deploy the release artifact.

03

LiveView WebSockets

LiveView needs WebSocket support. Most modern platforms handle this well.

04

Hot Code Upgrades

Elixir supports hot code upgrades, but most deployments use rolling restarts instead.

05

Health Checks

Use Phoenix health check plugs. Configure platform to check /health endpoint.

Nos Recommandations

Fly.io
#1

Fly.io

Meilleur Global Excellent Support SDK Officiel

Fly.io has first-class Phoenix support. BEAM clustering works. Global deployment. 3 free VMs. Best choice for Phoenix.

fly launch
Railway
#2

Railway

Meilleure DX Excellent Support SDK Officiel

Railway auto-detects Phoenix. Great developer experience. Add PostgreSQL easily. $5/month credit. Simple deployment.

railway up
Render
#3

Render

Meilleur Plan Gratuit Excellent Support SDK Officiel

Render supports Phoenix with Docker. Free tier with spin-down. Managed PostgreSQL available.

render deploy
G
#4

Gigalixir

Meilleur pour Elixir Excellent Support SDK Officiel

Gigalixir is purpose-built for Elixir. Hot upgrades, clustering support. Free tier with 1 instance. Elixir-focused.

git push gigalixir main
Heroku
#5

Heroku

Plus Établi Bon Support SDK Officiel

Heroku supports Phoenix with buildpacks. Mature, reliable. No free tier. Good add-on ecosystem.

git push heroku main

Comparaison Rapide

Service TypeScript Edge Offre Gratuite Temps de Configuration
Fly.io
none 3 VMs free 15 min
Railway
none $5/month credit 10 min
Render
none Free (spin-down) 15 min
Gigalixir
none 1 instance free 15 min
Heroku
none None 20 min

Démarrage Rapide

Fly.io Configuration for Phoenix fly.toml
app = "my-phoenix-app"
primary_region = "iad"

[env]
  PHX_HOST = "my-phoenix-app.fly.dev"
  PORT = "8080"

[http_service]
  internal_port = 8080
  force_https = true

[[services]]
  internal_port = 8080
  protocol = "tcp"

  [[services.ports]]
    port = 443
    handlers = ["tls", "http"]

Modèles d'Intégration Courants

Fly.io + Fly Postgres

Phoenix on Fly.io with managed PostgreSQL and clustering.

fly-io

Railway + Neon

Phoenix on Railway, serverless PostgreSQL on Neon.

railway neon

Gigalixir + PostgreSQL

Elixir-focused hosting with managed PostgreSQL.

gigalixir

Questions Fréquemment Posées

What's the best free hosting for Phoenix?
Fly.io offers 3 free VMs. Gigalixir has 1 free instance. Render has free tier with spin-down. Railway offers $5/month credit.
Do I need BEAM clustering?
Not for most apps. Clustering enables distributed features like PubSub across nodes. Fly.io and Gigalixir support it if needed.
How do I deploy Phoenix releases?
Build release in CI with MIX_ENV=prod mix release. Deploy the _build/prod/rel/my_app directory. Platforms like Fly.io handle this automatically.
How do I run migrations on deploy?
Use a release module with migrate function. Call it on app start or via release command. Fly.io example: fly ssh console -C '/app/bin/migrate'.

Guides Connexes

Dernière mise à jour: January 11, 2026