speed-test - Test your internet connection speed and ping using speedtest.net from the CLI

•    Javascript

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Test your internet connection speed and ping using speedtest.net from the CLI

cli-app cli speed test tester speed-test speedtest connection internet bandwidth ping measure check

fast-cli - Test your download speed using fast.com

•    Javascript

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Test your download speed using fast.com

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psi - PageSpeed Insights with reporting

•    Javascript

---

Run mobile and desktop performance tests for your deployed site using Google PageSpeed Insights V2 with tidy reporting for your build process. As of PSI 2.x, we expose both the PageSpeed Insights speed and usability scores. The latter is based on usability rules that score a page based on factors like the presence of a sensible mobile viewport.

pagespeed insights speed page website measure optimize size

tmi - TMI (Too Many Images) - discover your image weight on the web

•    Javascript

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Find out the image weight in your pages, compare to the BigQuery quantiles and discover what images you can optimize further. Verbose mode will show you a detailed summary of which images needs improving.

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marky - High-resolution JavaScript timer based on performance.mark/measure (461 bytes min+gz)

•    Javascript

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JavaScript timer based on performance.mark() and performance.measure(), providing high-resolution timings as well as nice Dev Tools visualizations. For browsers that don't support performance.mark(), it falls back to performance.now() or Date.now(). In Node, it uses process.hrtime().

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appmetrics

•    Javascript

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A small (803 bytes gzipped) library for measuring things in your web app, annotating the DevTools timeline, and reporting the results to Google Analytics. If you chose to send metrics to Google Analytics, values will show up its UI. See below.

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Hyperion-Android - App Debugging & Inspection Tool for Android

•    Java

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Hyperion is a hidden plugin drawer that can easily be integrated into any app. The drawer sits discreetly 🙊 under the app so that it is there when you need it and out of the way when you don't. Hyperion plugins are designed to make inspection of your app quick and simple. Please see our annoucement blog post for a feature showcase.

design review hyperion android debug drawer library measure inspect

Hyperion-iOS - In-app design review tool to inspect measurements, attributes, and animations.

•    Objective-C

---

If you like what you see, there's more where that came from. The View Inspector plugin allows you to inspect the properties of any view live within the app.

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justgage - JustGage is a handy JavaScript plugin for generating and animating nice & clean dashboard gauges

•    Javascript

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JustGage is a handy JavaScript plugin for generating and animating nice & clean gauges. It is based on Raphaël library for vector drawing, so it’s completely resolution independent and self-adjusting.

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psi - PageSpeed Insights Reporting for Node

•    Javascript

---

Run mobile and desktop performance tests for your deployed site using Google PageSpeed Insights v5 with tidy reporting for your build process. As of PSI 2.x, we expose both the PageSpeed Insights speed and usability scores. The latter is based on usability rules that score a page based on factors like the presence of a sensible mobile viewport.

pagespeed insights speed page website measure optimize size

react-measure - 📏 Compute measurements of a React component.

•    Javascript

---

Compute measurements of React components. Uses a ResizeObserver to detect when an element's dimensions have changed. Includes a polyfill for ResizeObserver in unsupported browsers.

react component measure measurements dimensions element-queries container-queries size

time-grunt - Display the elapsed execution time of grunt tasks

•    Javascript

---

The watch task and tasks that take less than 1% of the total time are hidden to reduce clutter.Run grunt with grunt --verbose to see all tasks.

grunt tasks measure time profile stat stats perf performance

slow-deps - 🐌 Measure which dependencies in a project are slowest to npm install

•    Javascript

---

CLI to measure which dependencies in a project are the slowest to npm install. Run this in a directory with a package.json, and it will take all the dependencies, devDependencies, and optionalDependencies, then npm install each one in a temporary directory with a temporary cache, then measure the install times. Each dependency is then listed from slowest to fastest.

slow dependencies measure npm install

maker.js - Library for creating 2D vector drawings for CNC and laser cutter machines.

•    Javascript

---

Maker.js, a Microsoft Garage project, is a JavaScript library for creating and sharing modular line drawings for CNC and laser cutters.

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scaphandre - ⚡ Electrical power consumption metrology agent

•    Rust

---

Scaphandre [skafɑ̃dʁ] is a metrology agent dedicated to electrical power consumption metrics. The goal of the project is to permit to any company or individual to measure the power consumption of its tech services and get this data in a convenient form, sending it through any monitoring or data analysis toolchain. Scaphandre means heavy diving suit in 🇫🇷. It comes from the idea that tech related services often don't track their power consumption and thus don't expose it to their clients. Most of the time the reason is a presumed bad ROI. Scaphandre makes, for tech providers and tech users, easier and cheaper to go under the surface to bring back the desired power consumption metrics, take better sustainability focused decisions, and then show the metrics to their clients to allow them to do the same.

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react-use-measure - 🙌 Utility to measure view bounds

•    TypeScript

---

This small tool will measure the boundaries (for instance width, height, top, left) of a view you reference. It is reactive and responds to changes in size, window-scroll and nested-area-scroll. Because there is no simple way to just get relative view coordinates. Yes, there is getBoundingClientRect, but it does not work when your content sits inside scroll areas whose offsets are simply neglected (as well as page scroll). Worse, mouse coordinates are relative to the viewport (the visible rect that contains the page). There is no easy way, for instance, to know that the mouse hovers over the upper/left corner of an element. This hook solves it for you.

react use measure bounds hooks

QuickBencher

•    

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QuickBencher is an easy to use library for .Net developers who wants to run performance benchmarks from within their code.

benchmark measure performance

Units of Measure

•    

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Simple solution to cope with units of measure in C# applications. You can develop your own unit system, be it SI-based or anything else that suits your needs.

measure units-of-measure

js-quantities - JavaScript library for quantity calculation and unit conversion

•    Javascript

---

JS-quantities is originally a JavaScript port of Kevin Olbrich's library Ruby Units (http://github.com/olbrich/ruby-units). The library aims to simplify the handling of units for scientific calculations involving quantities.

units measure temperature quantity quantities conversion physical measurement unit parser metric imperial convert parse

length.js - 📏 JavaScript library for length units conversion.

•    Javascript

---

Length.js was designed to work both in the browser and in Node.js. Length.js is available on unpkg CDN in compressed and uncompressed version.

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