OpenGraph vs Regex Match Lab

OpenGraph — Site Preview Inspector See exactly how your website looks when shared on social media — before anyone else does. OpenGraph instantly scans any URL and reveals the metadata that powers link previews across the web. Whether you're a developer, marketer, or content creator, OpenGraph gives you a clear view of what the world sees when your links are shared. ▶ Scan any URL Paste a link and get a full breakdown of its Open Graph tags, Twitter Card data, meta tags, icons, manifest, and Schema.org structured data — all in seconds. ▶ Scan locahost URL's When running the app on a Mac you can scan your localhost:3000 addresses to preview your site data before you even go live. ▶ Live Platform Previews See how your link will actually appear on WhatsApp, Facebook, Instagram, LinkedIn, Discord, iMessage side by side. ▶ Completeness Scoring Get an instant signal quality score — Good, Partial, or Poor — so you know exactly what's missing and what to fix. ▶ Track Your History Every scan is saved. Browse past results, compare changes over time, and monitor your sites at a glance. ▶ Export to PDF Generate a clean, shareable report of any site's metadata to send to clients or teammates. ▶ Aggregate Stats See trends across all your scanned sites — how many have good coverage, what signals are most commonly missing, and more. Perfect for SEO audits, pre-launch QA, and keeping your sharing metadata sharp.

Keep your regex pattern and its examples together. See matched text, numbered capture groups and source ranges as you edit. Preview replacements before using them elsewhere. Start with Email parts, Log levels or ISO dates, or enter your own pattern and sample. Check edge cases in Test cases. Set each example to Should match or Should not match, then choose Run all. The check looks for a match anywhere in each example. Use \A…\z when you need to check the whole text. Save the pattern, sample, replacement, flags and examples as one test on your device. Reopen it whenever you need to check the same inputs again. From Saved tests, choose Back up saved tests to export a JSON file. Use Restore from JSON and Add copies to bring tests back without replacing existing saved tests. Matching and saved tests work locally, with no account or automatic sync. You choose when to export or share. Large inputs and result counts are limited.