Mobile & Messaging

Create a wa.me link that opens a WhatsApp chat with your number and a ready-made message.

Make a WhatsApp link with a pre-filled message so people can message you in one tap.

Generate a click-to-chat link and HTML button for your website, ads or Instagram bio.

Build a mailto link with recipient, cc, bcc, subject and body already filled in.

Create a clickable email link with a subject and message for your website or email.

Create an sms: link that opens the messaging app with a number and message ready, for Android and iPhone.

Create a tel: link so visitors can call you with one tap, plus the HTML to paste into your site.

Create an add-to-Google-Calendar link with title, date, time, location and details.

Check whether an IMEI number has a valid format using the Luhn check, and see its parts.

Check the length and check digit of an IMEI to catch typing mistakes.

Format a phone number as E.164, international, national or plain digits, with a tel: link.

Check whether a number is a valid 10-digit Indian mobile number and clean it up.

Count SMS characters and segments, and see whether your message uses GSM-7 or Unicode encoding.

Calculate how many SMS segments your message needs and what it costs to send at scale.

Search international dialling codes for 80+ countries — +91 India, +1 USA, +44 UK and more.

Paste a phone number with its country code to see which country it belongs to.

Create every iOS and Android app icon size from one image and download them as a ZIP.

Generate all the iPhone and iPad app icon sizes, including the 1024 px App Store icon, from one image.

Generate Android launcher icons for every density plus the 512 px Play Store icon from one image.