yonatan-h

yonatan-h / express-k6-profiler

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Finds bottlenecks in an Express apps during load testing

www.npmjs.compackageexpress-k6-profiler benchmarking bottleneck-detection debugging express javascript
11
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100% credibility
Found Apr 07, 2026 at 11 stars -- GitGems finds repos before they trend. Get early access to the next one.
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AI Analysis
TypeScript
AI Summary

A tool that helps identify performance bottlenecks in web apps during load tests by measuring time spent in different processing steps and displaying results in a dashboard.

How It Works

1
🐌 Notice slowdowns

Your website starts lagging when lots of people try to use it at once, and you want to know why.

2
🔍 Find the helper tool

Discover a simple tool that acts like a detective to track where time is wasted inside your app.

3
✨ Turn on the tracker

Add one easy line to your app to start measuring every step visitors take.

4
⚡ Run a busy test

Pretend a crowd of users is visiting to recreate the slowdown.

5
📊 Open the results page

Go to a special address on your site to see a clear dashboard breaking down the delays.

6
🎯 Spot the culprits

Easily see which checks, fetches, or steps are taking too long, like slow logins or data pulls.

🚀 Speed things up

Fix the slow spots you found and feel your app fly smoothly even under heavy use.

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AI-Generated Review

What is express-k6-profiler?

This TypeScript tool profiles Express apps during k6 load testing to pinpoint bottlenecks like slow middleware, route handlers, or database calls. Drop it into your app with one line, run your k6 script, then hit /__profile for a dashboard breaking down request times per endpoint. It's one of those github finds that turns vague high-latency metrics into actionable breakdowns.

Why is it gaining traction?

Unlike plain k6, which just flags slow apps, or heavyweight tracers like Jaeger, this profiler zeroes in on Express internals without setup hassle—perfect for quick load testing iterations. The track() API lets you tag custom ops like DB queries, and the visual dashboard highlights top time sinks across requests. Among best github finds for perf debugging, its minimal overhead keeps it lightweight for staging runs.

Who should use this?

Backend engineers building Express APIs who hit high latency in k6 tests but can't spot the culprit. Ideal for teams optimizing Node.js services under load, skipping full observability stacks during dev or CI. Skip if you're not on Express or k6.

Verdict

Grab it for targeted Express + k6 profiling—11 stars and 1.0% credibility score scream alpha, with basic docs but no tests visible. Solid for one-off bottleneck hunts, but wait for maturity before core pipelines.

(178 words)

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