Image Resizer

Resize by pixel or social preset — Xiaohongshu, Instagram, X, video covers — with locked aspect ratio.

One image goes to Xiaohongshu, to X, and onto a video cover — each with a different aspect ratio. This tool turns the common platform sizes into presets, supports custom dimensions, and locks the source ratio so nothing stretches. When the ratio does not match you choose crop-to-fill or fit-with-bars.

How to use it

1. 1Drop in the image to see its dimensions and ratio.
2. 2Pick a preset, or switch to custom and type the width and height (the lock button controls proportional scaling).
3. 3Choose the fit: crop-to-fill leaves no bars but trims edges, fit-with-bars keeps everything but adds a matte.

FAQ

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