16 free tools
Free marketing tools for small business
These 16 free tools handle the everyday marketing of an Indian small business: social media posts, WhatsApp and SMS messages, email, campaign tracking, and the GST invoices and UPI codes that turn interest into payment.
Marketing a small business means doing many small jobs well. The social media tools write Instagram bios and captions, suggest local hashtags, and give the right image sizes and times to post. The messaging tools check WhatsApp Business and DLT SMS templates before you submit them, and clean an email list before you send to it. The campaign link builder and UTM link checker show which post, ad or email brought each customer. When a customer is ready to buy, the GST invoice maker, the profit margin calculator and the UPI QR code generator take care of the money side.
The tools
- 🔗
Campaign Link Builder
Build links that tell you which ad or post actually brought customers. - 📢
Google Ads Headline Checker
Check ad headlines and descriptions against Google's limits and rules before you submit, with a live preview. - 📈
Engagement Rate Calculator
Turn likes and comments into one number you can compare week to week. - ✒️
Email Signature Generator
Make a clean, clickable email signature with your logo, WhatsApp and social links that works in Gmail and Outlook. - 📬
Email List Cleaner
Remove broken, repeated and throwaway addresses from an email list and fix typos like gmial.com. - ✅
WhatsApp Template Checker
Check a WhatsApp Business template against Meta's rules, and see if it will be billed as marketing or utility. - ✉️
DLT SMS Template Checker
Find what would get your bulk SMS template rejected on the DLT portal, and copy a corrected version, before you submit it. - 📑
GST Invoice & Quotation Maker
Make a proper GST bill or price quote in a minute: CGST and SGST or IGST worked out for you, total in words, ready to save as PDF. - 📲
UPI QR Code Generator
Make a scan-and-pay UPI QR code and a printable counter card from your UPI ID, with a fixed amount if you want one. - 💹
Profit Margin Calculator
See your real profit on every sale, the right price with GST, and how many extra sales a discount needs. - 🧭
UTM Link Checker
Paste a tracked link to see what each tag means, catch mistakes that ruin your reports, and get a cleaned link. - 📸
Instagram Bio Generator
Ready-to-paste Instagram bios for your business, all within the 150-character limit, with emoji and a clear next step for visitors. - 💭
Caption Writer
Instagram and Facebook captions for new stock, offers, festivals, reviews and events — fill in a few details and copy. - #️⃣
Hashtag Finder
Hashtags for your kind of business and your city — local, niche and Hinglish — with a ready mix of five to copy. - 📐
Social Post Size Guide
The right image and video sizes for Instagram, Facebook, WhatsApp, YouTube, LinkedIn and Google, with a preview of where text is safe. - ⏰
Best Time to Post
A weekly posting plan for Indian customers, by type of business — which days, what time and what to post.
Guides on this topic
- Instagram Marketing for Small Business in IndiaHow a local business can use Instagram to win customers: bio, content ideas, captions, hashtags, when to post in India and the numbers worth tracking.
- DLT SMS Template Rejected? Reasons and How to Fix ThemWhy DLT SMS templates get rejected in India: untagged variables, brand and header mismatch, wrong category, unlisted links. How to fix each and get approved.
- Google Ads for Small Business: Read Before You SpendHow Google Ads charges you, the sums to do before starting, five default settings that waste a small budget, and how to write ads that bring real enquiries.
- YouTube SEO for Small Business: Get Your Videos FoundHow a local business gets YouTube videos found: choosing a search, titles, thumbnails, descriptions with chapters, captions in your language and Shorts.
- Social Media Content Calendar: A 4-Week Plan That WorksA ready four-week social media content calendar for a small business, with five post types, how often to post, festival planning and a monthly check.
- Why Was My WhatsApp Template Rejected? How to Fix ItWhy Meta rejects WhatsApp templates, how marketing, utility and authentication differ, what each costs in India in 2026, and how to write one that passes.
Common questions
Why check a WhatsApp or SMS template before submitting it?
Both are reviewed before you can use them. Meta reviews WhatsApp Business templates and sets their category, which affects what you pay per message, and business SMS templates in India must be registered on a DLT portal. A rejected template means a delay, so the checkers flag common problems first.
Is the GST invoice maker enough for my accounts?
It makes a GST bill or quotation with CGST and SGST or IGST worked out and the total written in words. It does not file returns or keep your books, so check the format with your CA, especially if your business has to issue e-invoices.
Do I need an account to use these?
No. Every tool on this page works without signing up. Tools that use AI or read a live page have a fair daily limit, which is shown on the tool.