Free tools for Reddit and X marketing

Five tools that run entirely in your browser. No sign-up, no email wall, nothing sent to a server.

These are the small utilities we kept rebuilding internally before turning them into something public. Each one does a single job and does it in your browser — there is no account, no email gate, and no request that sends your input anywhere.

They are deliberately simplified versions of ideas that MentionSpot runs properly at scale. The intent tester uses pattern rules where the product runs a full language-model pass; the subreddit finder matches a curated list where the product searches all of Reddit. Where a tool is a simplification, the page says so.

Discovery

Subreddit Finder

Describe your product and get a ranked list of communities where your buyers actually ask questions.

Open the tool Qualification

Buyer-Intent Tester

Paste a post or comment and see which of the five intent stages it maps to, and why.

Open the tool Planning

Reddit Lead ROI Calculator

Model what community replies are worth against the hours you spend finding threads manually.

Open the tool Safety

Removal Risk Checker

Paste a draft reply and see which common removal triggers it contains before you post it.

Open the tool AI search

AI Visibility Question Builder

Generate the twenty questions to run across ChatGPT, Perplexity and AI Overviews to measure whether you get recommended.

Open the tool

FREQUENTLY ASKED QUESTIONS

Questions about these tools

Do I need an account?

No. None of the tools require sign-up, an email address, or any identification. They run as JavaScript in your browser.

Is my input sent anywhere?

No. Every tool computes its result locally in the page. There is no network request carrying your text, so nothing can be stored or logged.

Are these the same algorithms MentionSpot uses?

No. They are deliberately simplified illustrations. The product runs a full language-model pass over each match rather than pattern rules, and searches live Reddit and X data rather than a fixed list.

Can I use these commercially?

Yes. They are free to use for any purpose, including client work.

GO BEYOND THE DEMOS

The real thing watches Reddit and X for you.

MentionSpot monitors both platforms for your keywords, scores every match with a language model, and delivers a ranked queue of conversations worth replying to.

Get the 7-day pass