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ai-agent

marky: precise timing

Get precise timing with marky, a high-resolution JavaScript timer, for founders building performance-critical apps.
intermediateโฑ 30 minutes๐Ÿ’ต Free
1,094 stars24 forksJavaScriptQuality 9/10Updated 2/28/2026100% free ยท open source
What it is

Use marky to measure how long tasks take in your JavaScript program.

What you can make with it

Automations like a performance dashboard in your custom app, showing how long each API call and computation take.

How it helps

Marky provides precise timing, which helps you identify and fix performance bottlenecks in your application, ensuring a smooth user experience.

Real use case example

"A founder of a startup uses marky to identify performance issues in their e-commerce website, which has a large number of users. They run marky on their login process, discover a slow database query, fix it, and then run marky again to confirm the improvement. Login times decrease by 30% and user satisfaction increases."

If you're new

Pick this up when you're starting to build performance-critical apps and need a simple way to measure timing.

If you're senior

Reach for marky when you need precise timing measurements and can customize it to suit your high-performance application's requirements.

Common confusion cleared up

Marky is not a full-featured profiling tool, but rather a simple and lightweight timer for precise measurements in your code.

Best inside these AI tools
Cursor
Pairs with
Stripe webhookNotion database
Why we list it on WorkflowStacks: Marky is here because it's a high-quality, open-source solution that saves development time and cost.
What it does

Marky is a high-resolution JavaScript timer that provides precise timing for performance-critical applications using performance.mark and performance.measure.

Install / run
npm install marky or yarn add marky
When to use it
  • โ€ขWhen building real-time web applications that require precise timing
  • โ€ขWhen optimizing performance-critical code paths in JavaScript applications
  • โ€ขWhen measuring the execution time of specific code blocks or functions
Quick start
  1. 1Import marky in your JavaScript file using const marky = require('marky');
  2. 2Create a new marky instance using const timer = marky();
  3. 3Start the timer using timer.start('my-mark');
  4. 4End the timer using timer.end('my-mark');
  5. 5Log the measurement using console.log(timer.getEntries()['my-mark']);
Ready-to-paste prompt
const marky = require('marky'); const timer = marky(); timer.start('my-mark'); for (let i = 0; i < 10000000; i++); timer.end('my-mark'); console.log(timer.getEntries()['my-mark']);
Heads up: Make sure the browser or Node.js environment supports the performance.mark and performance.measure APIs, as marky relies on these APIs to function correctly.
Saves to your device
What's inside โ€” free to inspect
No purchase needed

Read the entire source before you build โ€” unlike paid marketplaces that hide it behind a buy button.

7
top-level files
5
folders
393K
repo size
Apache-2.0
license
Key files
package.json
README.md
File tree
.github/
config/
doc/
src/
test/
.gitignore
karma.conf.js
LICENSE
marky.d.ts
package.json
pnpm-lock.yaml
README.md
Quick Actions
Details
Creator
nolanlawson
Language
JavaScript
Category
ai-agent
Published
11/17/2016

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