Preview Social Share Cards Instantly

See exactly how your page will look when shared on Twitter/X, LinkedIn, Facebook, Discord, Slack, and WhatsApp — before you hit publish. DevPantry's Social Share Preview tool inspects your Open Graph and Twitter Card meta tags and renders pixel-accurate card mockups for each platform.

No Cache, No Ownership Verification

Unlike Meta's Sharing Debugger or LinkedIn's Post Inspector, DevPantry doesn't require you to own the domain, doesn't cache stale results, and works on staging and preview URLs. Need to test a page behind a firewall or running on localhost? Switch to Paste Source mode and paste your HTML directly — everything is parsed client-side.

Validation Warnings

The tool automatically checks for common issues that cause broken or suboptimal social cards:

Missing og:image — cards will render without a preview image.
Image too small — platforms recommend at least 1200×630 pixels.
Title or description too long — text gets truncated differently on each platform.
Missing twitter:card — some clients don't fall back cleanly to Open Graph tags.

Privacy & Architecture

The URL fetch is handled by a single, stateless Cloudflare edge function that extracts only <meta> tags from the <head>. It persists nothing, logs nothing, and caches results for only 5 minutes at the edge. The rest of the tool — HTML parsing, card rendering, validation — is 100% client-side JavaScript.

Related Tools

JWT Decoder — Inspect and chaos-test authentication tokens client-side.
Mock Data Generator — Synthesize edge-case test data for any schema.
API Templates — Real-world OAuth, webhook, and REST response fixtures.