Free tools

Free LinkedIn & X tools for relationship building

Small, useful tools for founders, consultants, and sales people who build relationships on LinkedIn and X. No sign-up required.

LinkedIn tools

Calculators

Free

Engagement Rate Calculator

Calculate your LinkedIn engagement rate and benchmark it against B2B averages — by impressions or by followers.

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Checkers

Free

LinkedIn Character Counter

Count your text live against every LinkedIn limit — posts, headlines, comments, connection notes, and DMs.

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Formatters

Free

LinkedIn Post Formatter

Fix line breaks, bullets, tabs, and double spaces in your post before you publish.

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Formatters

Free

LinkedIn Post Preview

See how your post renders in the feed on mobile and desktop, with the 'see more' cutoff.

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Reference

Free

LinkedIn Character Limits Reference

Every LinkedIn character limit in one place. A quick reference for posts, headlines, comments, and more.

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Formatters

Free

LinkedIn Text Formatter

Make text bold, italic, script, monospace, and more for LinkedIn posts, comments, and headlines.

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Generators

Free

LinkedIn Post Idea Generator

45 curated post ideas for B2B sellers and founders — filter by format and topic.

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Formatters

Free

Markdown to Unicode Converter

Convert **bold**, *italic*, `code`, and ~~strike~~ Markdown into formatted Unicode text.

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X (Twitter) tools

Checkers

Free

X (Twitter) Character Counter

Count your X post against the 280-character limit, with URL, hashtag, and reply counting.

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Calculators

Free

X Engagement Rate Calculator

Calculate your X engagement rate from impressions, likes, replies, reposts, and bookmarks.

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Builders

Free

X Thread Builder

Write a thread one tweet at a time — each checked against the 280 limit, ready to copy.

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Formatters

Free

X Fonts Generator

Convert plain text into stylized Unicode fonts for your X posts and bio.

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Calculators

Free

X Account Value Calculator

Estimate what your X account is worth and what sponsors should pay, with the formula disclosed.

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Libraries

Free

X Bio Templates

Copy-and-paste X bio templates grouped by archetype, each under the 160-char limit.

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Checkers

Free

X Bio Character Counter

Count your X bio against the 160-character limit with a live preview.

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Coming soon

AI Generators

LinkedIn Comment Generator

Generate thoughtful, on-brand comments for any post. Powered by AI.

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AI Generators

LinkedIn Headline Generator

Generate headline variants optimized for prospect conversion. Powered by AI.

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AI Generators

LinkedIn Hashtag Generator

Find the right hashtags for your post without guessing. Powered by AI.

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Builders

LinkedIn QR Code Generator

Generate a QR code for your LinkedIn profile, customizable and downloadable.

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Builders

LinkedIn Carousel Generator

Build a LinkedIn carousel PDF from a list of bullet points or key ideas.

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Builders

LinkedIn Video Downloader

Download any public LinkedIn video as an MP4. Paste the post URL and save.

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AI Generators

AI Tweet Generator

Turn any idea into ready-to-post X tweets. Pick short, medium, or long.

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AI Generators

AI Thread Generator

Build a full X thread from one prompt — hook-first, one idea per tweet.

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Analyzers

X Profile Analytics

Analyze any X profile: engagement stats, top tweets, and estimated earnings.

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Analyzers

Best Time to Tweet

An engagement heatmap by day and hour to find your best posting times.

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Builders

X Video Downloader

Save videos from any tweet in HD quality — 720p, 1080p, or higher.

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Checkers

X Username Availability Checker

Check if a username is available on X and Reddit, with close alternatives when taken.

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Builders

Tweet to Image

Paste any tweet URL and download a high-fidelity PNG of the post.

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Analyzers

Shadowban Checker

Check whether an account's recent posts show up in search. Three-step visibility test.

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Analyzers

X Trends

Live trending topics on X, refreshed every 15 minutes — worldwide and by country.

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Builders

X Banner Maker

Generate a 1500x500 X header from templates, with brand-color matching.

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Builders

X GIF Downloader

Save GIFs from any tweet as MP4 in original quality.

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Builders

X Photo Downloader

Save photos from any tweet in PNG, JPG, or WebP — multi-image posts included.

Coming soon

Tools get you ready. Surfolks puts it into action.

Surfolks turns LinkedIn and X activity into a daily queue of the people, posts, and follow-ups that move your relationships forward.

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