Compress Open Graph / Social Preview Image (Under 400 KB JPEG)
og:image renders at 1200×630. JPEG for maximum client compatibility.
Your images stay on your device. Nothing is uploaded.
Open Graph and Twitter card previews render at 1200×630. Facebook re-encodes at ingest but starting from a clean JPEG produces sharper previews than uploading a WebP that not every OG scraper handles cleanly.
This preset produces a 1200 px JPEG at quality 85 — Open-Graph-safe across every social preview scraper.
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Frequently asked questions
- How much can I shrink images for Open Graph / Twitter card?
- Typical reductions are 60–85% with no visible quality loss using the defaults on this page. Open Graph and Twitter card previews render at 1200×630. Facebook re-encodes at ingest but starting from a clean JPEG produces sharper previews than uploading a WebP that not every OG scraper handles cleanly.
- What format is best for Open Graph / Twitter card?
- For Open Graph / Twitter card the preset above outputs JPEG at quality 85 — the sweet spot for this workflow's LCP and CWV budget.
- Will compression break transparency or animation?
- Transparency is preserved when the output format supports it (PNG, WebP, AVIF). Animation is preserved for animated WebP. JPEG output flattens transparency to white.
- Can I compress dozens of images at once?
- Yes — use the bulk compressor. Drop a folder or multi-select files; the queue processes them in order with progress per file, and you can download all results as a ZIP.
- Do my images get uploaded anywhere?
- No. The tool runs entirely in your browser — important for client work, internal assets, and anything not yet published.
Optimise the rest of your Open Graph / Twitter card assets.
Use the bulk compressor to process a folder in one go. Everything runs locally.
Start compressing