Free Social Image Size Converter
Resize and crop images locally for Open Graph cards, square posts, stories, and thumbnails.
Resize social preview images locally before publishing or scheduling.
About this tool: Free Social Image Size Converter
Resize and crop images locally for social media formats such as Open Graph, square posts, stories, and thumbnails. No upload required — everything runs locally in your browser for privacy and speed.
Common use cases
- Use Open Graph for website previews and launch cards.
- Use cover crop for edge-to-edge posts or contain when the full image must stay visible.
Sizing images per platform
Every platform crops a shared image differently, and a link preview that loses the subject is worse than no preview. Resize to each target rather than letting the platform decide where to cut.
One artwork, several crops
- 1
Compose for a safe centre
Assume each platform will crop towards the middle. Keep the subject and any text well inside a centred square.
- 2
Generate each size from the original
Scale from the master image, never from an already-cropped export, or the second crop compounds the first.
- 3
Check the smallest target
If the text is unreadable at the smallest size, drop the text and let the image do the work.
Social image size questions
- Why does my link preview look wrong?
- The platform cropped to its own aspect ratio. Supply an image already composed for the centre of that crop.
- Should I upload the largest size everywhere?
- No. Oversized images get downscaled by the platform anyway, and they cost load time on your own page.
- Is resizing done locally?
- Yes, in your browser, with nothing uploaded.
Drop a file or click to browse
90%
Waiting for a file
Add a file to start.
Original
-
Output
-
Social size
1200 x 630
Saved
-
Private browser processing. No uploads.
Output
Waiting for a file
Quick tips
- Use Open Graph for website previews and launch cards.
- Use cover crop for edge-to-edge posts or contain when the full image must stay visible.
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