AppSignal Blog

AppSignal APM combines performance monitoring and error tracking in one clear interface. For Ruby (on Rails), Elixir and Node.js.

AppSignal’s Top 5 Elixir Posts in 2025
Elixir

AppSignal’s Top 5 Elixir Posts in 2025

It's time for our yearly rundown of our top 5 best-performing Elixir posts.

By Ana Malinović on

AppSignal’s Top 5 JavaScript Posts in 2025
JavaScript

AppSignal’s Top 5 JavaScript Posts in 2025

Check out the 5 JavaScript posts that really stood out on our blog in 2025.

By Ana Malinović on

AppSignal’s Top 5 Ruby Posts in 2025
Ruby

AppSignal’s Top 5 Ruby Posts in 2025

Let's look back at our top 5 Ruby posts this year.

By Ana Malinović on

Create a Markdown Editor in Ruby on Rails
Ruby

Create a Markdown Editor in Ruby on Rails

In this post, we'll build a Markdown editor using Rails.

By Hans-Jörg Schnedlitz on

Monitoring Node.js Express Application Performance with AppSignal
JavaScript

Monitoring Node.js Express Application Performance with AppSignal

Let's monitor the performance of an Express application effectively using AppSignal.

By Damilola Olatunji on

Improve Query Performance Using Python Django QuerySets
Python

Improve Query Performance Using Python Django QuerySets

Let's improve the performance of your queries using Django QuerySets.

By Federico Trotta on

The Performance Revolution in JavaScript Tooling
JavaScript

The Performance Revolution in JavaScript Tooling

Let's explore some tools that have driven dramatic performance improvements and other innovations in the JavaScript ecosystem.

By Damilola Olatunji on

Completing, Integrating, and Publishing Our Game with DragonRuby
Ruby

Completing, Integrating, and Publishing Our Game with DragonRuby

Let's continue developing our game, then integrate and publish it using DragonRuby in the second part of our two-part series.

By Julian Rubisch on

Manage a Next.js Monorepo with Prisma
JavaScript

Manage a Next.js Monorepo with Prisma

In this post, we'll fire up a Next.js monorepo with Prisma.

By Camilo Reyes on

Build an Elixir App with Cowboy
Elixir

Build an Elixir App with Cowboy

Let's set up and use Cowboy, and design a simple pub/sub architecture.

By Allan MacGregor on

Diving Into Reactive Programming in Node.js
JavaScript

Diving Into Reactive Programming in Node.js

We'll explore how reactive programming fits into the Node.js ecosystem.

By Antonello Zanini on

Rendering Samples with Showcase for Ruby on Rails
Ruby

Rendering Samples with Showcase for Ruby on Rails

In the final part of our Showcase for Rails series, we'll look at its key feature: samples.

By Alexandre Ruban on

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AppSignal provides insights for Ruby, Rails, Elixir, Phoenix, Node.js, Express and many other frameworks and libraries. We are located in beautiful Amsterdam. We love stroopwafels. If you do too, let us know. We might send you some!

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