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Built by Developers,
For Developers

Uptimes started as a personal frustration — why should you need Docker, a VPS, or a SaaS subscription just to know if your endpoint is responding? We built the answer right inside your browser.

0+
Active Users
0+
Pings Completed
0 servers
Required to Run
0% free
Always & Forever

Monitoring Shouldn't
Require Infrastructure

Traditional uptime monitoring forces you into a dependency loop — you need a server to monitor your server. That's backwards. With modern browser APIs, we can ping endpoints, measure latency, and track history without any backend at all.

Our mission is to eliminate every unnecessary barrier between a developer and the insight that their service is running. No billing, no onboarding wizard, no Docker Compose file. Just open your browser, paste a URL, and know.

Privacy First

Your URLs stay on your device. Zero telemetry. Zero data collection.

Open & Transparent

Fully open source. Inspect every line of code we ship.

Zero Friction

Install once. Works instantly. No config files, no accounts.

uptimes-monitor.js
// No server. No Docker. Just browser.
async function pingEndpoint(url) {
const t0 = performance.now();
await fetch(url, { mode: 'no-cors' });
const ms = Math.round(performance.now() - t0);
return { status: 'up', ms };
}
 
// Result ↓
{ status: 'up', ms: 197 }
Vanilla JS
Browser APIs
LocalStorage
Fetch API

Meet the Team

A small, passionate group of engineers and designers who believe great tools should be simple.

AR

Alex Rivera

Founder & Lead Engineer

Full-stack dev turned tool-builder. Spent 5 years building cloud infrastructure before getting tired of it and building something that doesn't need any.

SK

Sofia Kim

Design & Product

Product designer obsessed with removing friction. If it takes more than two clicks, she'll redesign it until it doesn't.

JP

Jamal Patel

Extension Engineer

Chrome extension specialist and performance nerd. Responsible for squeezing every millisecond of accuracy out of the browser ping engine.

How We Got Here

Q1 2023

The Idea

Alex gets paged at 3am for a down server. The monitoring tool that should have caught it first was also down. The idea for Uptimes is born.

Q3 2023

First Prototype

A hacky Chrome extension with a hardcoded URL and a blinking green dot. Shared with 20 developer friends — 18 asked "when can I use it for real?"

Q1 2024

Public Beta

Sofia joins and redesigns the entire UI. Jamal rewrites the ping engine for accuracy. We launch to 500 beta users and hit 1M pings in the first month.

Now

10,000+ Users & Growing

Used by indie developers, agencies, and startups across 60+ countries. Still 100% free. Still requires zero infrastructure. Just as it should be.

What We Stand For

01

Simplicity Is a Feature

Every feature we don't ship is a potential source of confusion we eliminated. We'd rather do fewer things flawlessly than many things adequately.

02

Your Data Is Yours

We don't want your URLs, your usage patterns, or your email address. Everything Uptimes knows about your monitors stays in your browser.

03

Free Means Free

No freemium trap. No "upgrade for more monitors". The extension is and will remain free. We earn nothing from your monitoring activity.

04

Ship Fast, Break Nothing

We iterate quickly but never compromise the core reliability of the ping engine. Getting the number right matters more than shipping the next feature.