12 Free Digital Marketing & Writing Tools You Can Use Right Now

Most “free” marketing tools online want your email address, cap your usage after a few tries, or quietly upload whatever you paste into them to a server somewhere. The 12 tools on AnushaRavi.com/tools do none of that. They run entirely in your browser using JavaScript, nothing you type, paste, or generate is ever sent to a server, and there is no sign-up, no usage limit, and no watermark.

Here is what each one does and when you would actually reach for it.

Marketing & Generator Tools

These five are built around the day-to-day mechanics of running campaigns: tracking, lead capture, and measuring return.

1. Free QR Code Generator

Creates static QR codes for URLs, WhatsApp chats, Wi-Fi credentials, email, or phone numbers, with custom colors, an embedded logo, and SVG export for print-quality output. Useful for storefront signage, print ads, or menu cards that need to link straight to a landing page or WhatsApp chat.

2. WhatsApp Link Generator

Builds a custom wa.me click-to-chat link with a prefilled message, plus a scannable QR code for it. Drop the link in your Instagram bio or a Google Ads extension and every click opens a chat with your message already typed in. If you are setting up WhatsApp as a lead channel properly, pair this with our WABA setup guide, and read this warning before activating your number.

3. UTM Campaign URL Builder

Builds GA4-ready campaign tracking URLs with presets for Facebook, Google Ads, LinkedIn, and Email, so every link you share is tagged consistently instead of guessing at parameter names each time. Consistent UTMs are the difference between knowing which channel actually drove a conversion and guessing, a mistake covered in 10 Google Ads Mistakes That Waste Your Budget.

4. ROAS Calculator

Calculates your Return on Ad Spend as a multiplier and a percentage, plus net profit, with Indian currency formatting built in. Punch in your ad spend and revenue after any campaign to see exactly where you stand against benchmarks like the ones in our 14X ROAS Chennai real estate case study.

5. Cost Per Lead Calculator

Evaluates your CPL against total ad spend and lead volume in one field entry. Compare your result against our Cost Per Lead Benchmarks by Industry post to see if you are paying a fair price for leads in your sector, and if the number looks high, our guide to reducing CPL on Meta Ads covers the fixes.

Writing & Content Tools

These seven handle the unglamorous but constant work of preparing content, whether that is a blog post, an ad caption, or a page slug.

6. Case Converter

Converts text between 12 casing styles (Title Case, UPPERCASE, lowercase, camelCase, snake_case, and more) with full Undo support. Handy for cleaning up headlines, code labels, or copy pasted from inconsistent sources.

7. Text Formatter & Cleaner

Runs 17 different cleaning operations on a block of text: trimming extra spaces, deduplicating lines or words, stripping HTML or punctuation, and sorting lines A-Z. Useful for cleaning up scraped data, pasted content from Word or Google Docs, or messy CSV exports before they go into a spreadsheet or CMS.

8. Word & Character Counter

Live word, character, and sentence counts, plus reading and speaking time estimates and a top-10 word frequency breakdown. Useful for keeping blog posts, ad copy, and meta descriptions inside platform limits without repeatedly pasting into a search engine.

9. URL Slug Generator

Generates clean, SEO-friendly permalinks with custom separators, automatic stop-word removal, and Tamil and Unicode support. Getting your slugs right matters more than most people think, our Keyword Research Guide for Chennai Businesses covers why keyword placement in the URL still counts.

10. Text Comparison Tool

Compares two passages of text side-by-side or inline, highlighting additions and removals with an exportable report. Useful for checking what actually changed between two drafts of a landing page or ad copy before you approve a revision.

11. Keyword Density Checker

Analyzes 1-word, 2-word, and 3-word phrase density across a piece of content, with stop-word filtering and sortable tables. Run any blog draft through this before publishing to check you are not over-stuffing (or under-using) your target keyword. Pair it with our Website SEO Audit Checklist for a full pre-publish review.

12. Social Media Caption Formatter

Formats post captions, extracts and deduplicates hashtags to the end of a caption, and checks the result against Instagram, LinkedIn, and YouTube character limits before you post. Saves the awkward moment of a caption getting cut off mid-sentence on one platform because it was written for another.

Why Everything Runs in Your Browser

None of these tools save or transmit your data. QR code rendering, text formatting, and every calculation happen locally in JavaScript on your device, so phone numbers typed into the WhatsApp Link Generator, ad spend figures in the ROAS Calculator, or draft content in the Text Formatter never touch a server. That also means there is no sign-up wall and no artificial usage cap, use any tool as many times as you need.

Need More Than a Free Tool?

These tools solve the small, repeatable tasks. For the bigger picture, strategy, campaign management, and full-funnel lead generation, that is where working with a performance marketer pays off. Request a free performance marketing audit to see what a data-driven Google Ads, Meta Ads, or WhatsApp Business API strategy could do for your Chennai business.

Browse the full set any time at AnushaRavi.com/tools.