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XUtilHub

Free Social Media Tools – Character Counter, Hashtags, Emoji & More

Everyday tools for creators, small businesses and social media managers: check post lengths for every platform, download YouTube thumbnails, estimate YouTube earnings, measure engagement, copy emoji and invisible characters, build hashtag sets, tag campaign links with UTM parameters and create WhatsApp chat links.

9 tools

Social Media Character CounterNEW

Count characters for X (Twitter), Instagram, TikTok, YouTube, LinkedIn, Facebook, Threads and Pinterest at once, with each platform's limit.

YouTube Thumbnail DownloaderNEW

Download the thumbnail of any YouTube video or Short in HD (1280×720) and other sizes. Paste the video link and save the image.

YouTube Earnings CalculatorNEW

Estimate how much a YouTube channel earns from ads per day, month and year from its views and an RPM range.

Engagement Rate CalculatorNEW

Calculate the engagement rate of an Instagram, TikTok or other social media account from followers, likes, comments, shares and saves.

Emoji PickerNEW

Search and copy any emoji with one click: smileys, hearts, hands, animals, food, flags and more. Build a string of emoji and copy them all.

UTM BuilderNEW

Build campaign URLs with UTM parameters (source, medium, campaign, term, content) to track marketing links in Google Analytics and other tools.

WhatsApp Link GeneratorNEW

Create a WhatsApp click-to-chat link (wa.me) for your number, with an optional pre-filled message, for your bio, website or ads.

Invisible CharacterNEW

Copy invisible characters and blank text for names, bios and messages, and find hidden zero-width characters in any text.

Hashtag GeneratorNEW

Find popular hashtags for 16 topics and turn your own keywords into hashtags. Pick the ones you want and copy them in one click.

Tools for creators and marketers

Small jobs come up every day when you run social media accounts: checking a caption fits, grabbing a thumbnail, finding the right emoji, tagging a campaign link. These tools handle them in seconds, with no login and no access to your accounts.

Which tool do I need?

I want to…Use
Check my post fits X, Instagram, TikTok and othersSocial Media Character Counter
Save a YouTube thumbnailYouTube Thumbnail Downloader
Estimate YouTube ad earningsYouTube Earnings Calculator
Measure engagementEngagement Rate Calculator
Copy an emojiEmoji Picker
Track a campaign linkUTM Builder
Let people message me on WhatsAppWhatsApp Link Generator
Make a blank name or find hidden charactersInvisible Character
Find hashtags for a postHashtag Generator

More tools for creators

Privacy

None of these tools ask for your social media passwords or connect to your accounts. Everything runs in your browser, except loading YouTube's public thumbnail images.

Frequently asked questions

Do I need to log in to my social accounts?

No. None of these tools connect to your accounts or ask for passwords. They work on the text and numbers you enter, in your browser.

Are the platform limits up to date?

They reflect each platform's published limits as of 2026. Platforms change their rules from time to time, so check the platform if a post is rejected.

Is anything I type saved?

No. Only small conveniences, such as your recently used emoji, are remembered in your own browser.