Free Tools for SMS, WhatsApp and Campaigns

Small tools that save time every day: count SMS length, check and write DLT templates, add WhatsApp chat to your website, tag campaign links and estimate costs. Free, no sign-up, and your text stays in your browser.

7 free toolsNo sign-upRuns in your browserMade in India since 2009

Quick Answer

SMSGatewayHub free tools help you write, check and share business messages: count SMS characters and parts, check a message against its DLT template, generate DLT-ready templates, build WhatsApp chat widgets and links, tag campaign links with UTM parameters and estimate SMS costs. All tools are free, need no sign-up and run in your browser.

SMS Character Counter

Characters, SMS parts and GSM-7 or Unicode as you type, with the characters that force Unicode highlighted and a cost estimate.

Count characters →

DLT Template Checker

Check an SMS against its approved DLT template: first difference, {#var#} values, header format and rejection reasons.

Check a message →

SMS Template Generator

DLT-friendly templates for OTP, orders, delivery, appointments, payments and offers with your brand name.

Generate a template →

WhatsApp Widget Generator

A WhatsApp chat button for your website with greeting, quick replies and live preview - one self-contained snippet.

Build a widget →

WhatsApp Link Generator

A wa.me click-to-chat link with a pre-filled message, a QR code for print and an HTML link for your site.

Create a link →

UTM Link Builder

Tagged campaign links with presets for Google Business Profile, JustDial, IndiaMART, social, WhatsApp, email and SMS.

Tag a link →

SMS Cost Calculator

Monthly bulk SMS, OTP and transactional cost by volume, with and without 18% GST.

Estimate cost →

Link to these tools

Writing about SMS, DLT or WhatsApp marketing? You are welcome to link to any tool page. Copy a ready link:

<a href="https://www.smsgatewayhub.com/free-tools">Free SMS and WhatsApp tools by SMSGatewayHub</a>

Services behind the tools

Bulk SMS Service →

Promotional and transactional SMS.

WhatsApp Business API →

Official API with green-tick help.

DLT Registration →

Entity, header and template help.

OTP SMS →

Fast OTP delivery route.

Pricing →

SMS, WhatsApp and RCS rates.

API Developer Hub →

Docs and code samples.

Frequently Asked Questions

Are these tools really free?

Yes. Every tool on this page is free to use, with no registration, no usage limit and no watermark on what you create.

Is the text I type safe?

Yes. The tools run in your browser. Messages, templates, numbers and links you type are not sent to our servers; we only count anonymous page visits and button clicks to see which tools people use.

Do I need an SMSGatewayHub account?

No. You need an account only when you want to send SMS, WhatsApp, RCS or email messages. A free trial is available when you are ready.

Can I link to these tools from my website or blog?

Yes, please do. Link to https://www.smsgatewayhub.com/free-tools or to any single tool page.

Ready to send, not just plan?

SMS, WhatsApp, RCS and email from one platform, with free DLT help and a free trial.

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