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Social Media Post Preview & Validator

Write your post once, preview exactly how it looks on Twitter/X, Facebook, LinkedIn, and Instagram. Catch formatting issues before you publish.

Compose Your Post

0 chars
0 hashtags
0 mentions
0 links
~0s read

Platform Checks

Why Preview Before Posting?

Catch Mistakes

See exactly how your post renders on each platform before hitting publish. No more embarrassing edits.

Length Validation

Each platform has different character limits. This tool checks your post against all of them simultaneously.

Hashtag Analysis

Get optimal hashtag count recommendations per platform. Too many hashtags hurt reach on some networks.

Platform-Accurate

Each preview mimics the actual platform's UI, including avatar, name, actions, and formatting styles.

Frequently Asked Questions

What character limits does each platform have?
Twitter/X: 280 characters. Facebook: 63,206 characters (but posts over 477 chars get truncated with "See more"). LinkedIn: 3,000 characters. Instagram captions: 2,200 characters.
How many hashtags should I use?
Twitter/X: 1-2 hashtags for best engagement. Facebook: 1-3 hashtags. LinkedIn: 3-5 hashtags. Instagram: up to 30, but 5-15 is the current sweet spot for reach.
Does this tool post to my accounts?
No. This is purely a preview and validation tool. It runs entirely in your browser and never connects to any social media API. You copy your finalized post and publish it yourself.
Can I preview with images?
Yes. Paste an image URL in the image field and the preview will render it in the post. For best results, use a direct image URL ending in .jpg or .png.
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About Social Media Post Preview & Validator

Preview your social media posts for Twitter/X, Facebook, LinkedIn, and Instagram before publishing. Check character limits, hashtag counts, and platform-specific formatting. Free, no login.

Why Use Our Social Media Post Preview & Validator?

Our Social Media Post Preview & Validator is completely free, works directly in your browser, and requires no sign-up or installation. Your data stays on your device for maximum privacy and security.

Key Features

Frequently Asked Questions

Is this Social Media Post Preview & Validator really free?

Yes, this tool is completely free to use with no limitations. We believe in making professional tools accessible to everyone.

Do I need to create an account?

No account or registration is required. Simply open the tool and start using it immediately.

Is my data safe?

Absolutely. All processing happens directly in your browser. We do not store, transmit, or access any of your data.

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