No sign-in · Unlimited checks · 100% free

Free Social Media Link Preview & Open Graph Validator

Check, fix, and ship your link preview — validate 11 platforms, generate meta tags, design your OG image, and refresh caches in one free session.

Check a URL OG Image Maker Tag generator

11
Platforms
13
Tag audit
$0
Forever free

How it works

Check your link preview in three steps.

Our Open Graph validator reads your page meta tags and simulates how 11 platforms render your shared link — with per-platform validation and fix instructions.

  1. 01

    Enter your URL

    Paste any public URL or raw HTML. We fetch and parse Open Graph, Twitter Card, and SEO meta tags instantly.

  2. 02

    Review validation

    See critical errors, warnings, and a 13-tag checklist. Each issue includes what to change and why it matters.

  3. 03

    Fix and preview

    Edit title, description, and image live. Copy corrected meta tag code and check previews across all platforms.

Platforms

Preview on 11 platforms.

Each platform has different title limits, image sizes, and tag preferences. Our tool validates against all of them so you share with confidence.

Facebook OG tags, 1200×630 LinkedIn Post Inspector compatible X (Twitter) Twitter Cards + OG fallback Google SERP snippet preview Bing Microsoft search snippets Slack Rich unfurl from OG tags WhatsApp Large image cards Threads Meta shared cache Pinterest Vertical 1000×1500 Discord Rich embeds + theme-color Telegram WebpageBot compatible

Features

Everything you need before you share.

13-tag audit

Validate og:title, og:image, Twitter Cards, canonical URL, favicon, and more with pass/fail status.

Actionable fixes

Critical errors, warnings, and info levels — each with a clear fix step so you know exactly what to edit.

Live editing

Override title, description, and image in real time with character counters per platform.

OG Image Maker

Design pixel-perfect 1200×630 Open Graph images in your browser. Free, no login — download PNG instantly.

100% free

No sign-in, no credit card, no trial. Unlimited checks — better than paid OG tools.

Cross-platform

Compare Facebook, LinkedIn, X, Slack, Discord, and 6 more side by side from a single check.

Troubleshooting

Common link preview issues & how to fix them.

Broken social previews cost clicks. Here are the most frequent problems and what to do about them. Read the full troubleshooting guide →

No preview card appears

Fix: Add og:title, og:description, and og:image in your page <head>. Ensure tags are server-rendered, not injected by JavaScript.

Wrong or outdated image

Fix: Update og:image to the correct URL, then refresh the cache using the Facebook Sharing Debugger or LinkedIn Post Inspector.

Title or description truncated

Fix: Keep titles under 60 characters for Facebook and descriptions under 160 for Google. Our validator shows per-platform limits.

Image looks blurry or cropped

Fix: Use 1200×630 px at 1.91:1 aspect ratio. Avoid small images below 600×315 px.

SPA / React site shows blank preview

Fix: Crawlers do not run JavaScript. Put OG tags in server-rendered HTML or use SSR/prerendering.

Company

About Social Link Preview

Social Link Preview is a free multi-page tool for marketers, developers, and content teams. Explore our guides, platform previews, and company pages below.

About Us

Learn who built Social Link Preview and why we offer a free Open Graph validator.

Read more

Contact Us

Questions, feedback, or partnership inquiries — get in touch with our team.

Read more

Privacy Policy

How we handle URLs, analytics, and your data when you use our preview tool.

Read more

Terms & Conditions

Rules for using our free link preview and meta tag validation service.

Read more

Product Hunt

Launch hook (draft)

Tagline: A 100% free, no-login tool to preview, validate, and fix Open Graph link previews across 11 platforms — plus generate meta tags and OG images in one session.

First comment: Built for indie hackers shipping on Product Hunt. Paste a URL, see per-platform validation, design a 1200×630 OG image, copy meta HTML, and refresh Facebook/LinkedIn caches — all without Canva or an account.

Try the validator Try OG Image Maker

FAQ

Open Graph & link preview FAQ

What is a social media link preview?

A link preview is the card shown when you share a URL on Facebook, LinkedIn, X, Slack, WhatsApp, and other platforms. It is built from Open Graph and Twitter Card meta tags in your page HTML.

What are Open Graph meta tags?

Open Graph tags (og:title, og:description, og:image, og:url, og:type) tell social platforms how to render your link. Without them, platforms may show a blank card or pull incorrect text from your page.

What is the recommended OG image size?

Use 1200×630 pixels (1.91:1 aspect ratio) for Facebook, LinkedIn, Slack, Discord, and most platforms. Pinterest prefers 1000×1500 (vertical). X works best at 1200×675.

Why is my link preview showing the wrong image?

Platforms cache previews aggressively. Update your og:image tag, then use the platform debugger (Facebook Sharing Debugger, LinkedIn Post Inspector) to force a refresh.

Why does my preview work on Facebook but not X/Twitter?

X prefers Twitter Card tags (twitter:card, twitter:title, twitter:image). If missing, X falls back to Open Graph tags — but explicit Twitter tags give you more control.

Do Open Graph tags help with SEO?

OG tags do not directly change search rankings, but better social previews increase click-through rates and engagement — which can drive more traffic and backlinks over time.

Do I need an account to use this tool?

No. Social Link Preview is 100% free with no sign-in, no credit card, and unlimited URL checks.