Extras: free online tools

Free online tools for techs and everyday users: temp mail, internet speed test, what is my IP, password and QR code generators, subnet calculator, password breach checker, open port checker, DNS/WHOIS lookup, MAC vendor lookup, webcam and dead pixel tests, CCTV and UPS calculators, image converter and compressor, and more. No sign-up, no trackers.

Temp mail

A disposable email address in one click, no sign-up, to receive codes and avoid spam.

Internet speed test

Measure your connection's download, upload, ping and jitter.

What is my IP

Your public IP, browser, operating system and screen details.

Password generator

Strong random passwords, generated only in your browser.

QR code generator

Create QR codes for text, links or Wi-Fi networks and download them as PNG.

IP subnet / CIDR calculator

Network, broadcast, mask, wildcard and host range for any IPv4/CIDR.

Word & character counter

Words, characters, sentences, paragraphs and reading time.

Storage & speed converter

KB, MB, GB, TB, Mbps to MB/s and a download time calculator.

Password strength checker

Password strength and breach check, without ever sending your password.

Open port checker

Test whether a port on your public IP is reachable from the internet.

MAC address lookup

Find the brand of a device on your network from its MAC address.

DNS & WHOIS lookup

DNS records and WHOIS data for any domain.

Webcam, mic & keyboard test

Test your webcam, microphone and keys in seconds.

Dead pixel test

Full-screen colors to spot dead or stuck pixels.

CCTV storage calculator

Hard drive TB or recording days for your DVR/NVR.

UPS & power calculator

Which UPS to buy and how long the battery lasts.

Image converter (JPG, PNG, WEBP)

Convert images to JPG, PNG or WEBP without uploading them.

Image compressor

Reduce photo file size without uploading.

UUID, Base64 & hash generator

UUIDs, Base64 and MD5/SHA hashes instantly.

Suspicious link checker

Check a strange link before you open it.

Handy online utilities, no fuss

We gathered in one place the tools we use every day in tech support and networking: test your internet speed, find your public IP, calculate subnets for a MikroTik, create a strong password, make a QR code with your Wi-Fi password or grab a disposable email to keep spam out of your inbox. They work on computers and phones, with nothing to install.

Frequently asked questions

Are the tools free?

Yes, they're all free and need no sign-up.

Do you store my data?

No. Almost all of them run only in your browser. The speed test, “What is my IP” and the port checker use servers but don't store results; the DNS/WHOIS lookup uses Cloudflare and RDAP, and the password checker queries Have I Been Pwned anonymously (k-anonymity); temp mail uses the free mail.tm service through a small relay on our server that stores nothing.

Will you add more tools?

Yes, we keep adding utilities for techs and everyday users. To suggest one, message me.