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FIRST CH TOOLS / Images / 54 SOCIAL IMAGE SIZES

Social Media Image Resizer

Take one image and export it at every size the platforms ask for — OGP (1200×630), X, Instagram, YouTube thumbnails and more. Each preset keeps its own crop position, which you set on the preview. Everything happens inside your own browser.

Drag & drop an image here or click to choose a file (PNG / JPEG / WebP — the larger the better)

Custom size ×

PNG is lossless, so the quality slider does not apply. JPEG cannot hold transparency, so transparent areas are filled with white.

How to Use

  1. Add an imageDrag and drop the source image, or click to choose a file. The larger it is, the more room every size has.
  2. Pick sizes and set the cropTick the presets you need, click a result card, then drag the frame — only that size moves.
  3. Save them allSave one at a time, or download every size in a single ZIP.

About This Tool

Even when the photo is the same, every platform wants its own dimensions: 1200×630 for OGP, 16:9 for an X post, square plus 4:5 plus 9:16 for Instagram, 1280×720 for a YouTube thumbnail. The aspect ratios disagree, so a single crop reused everywhere pushes the subject out of frame somewhere. This tool therefore keeps a separate crop position for every preset. Click a result card and the preview above switches to that frame; drag the frame to move it, or use the zoom slider to take a smaller part of the source. When you do want them all aligned, press “Apply to all”.

The list covers web and blog (OGP, note), X, Instagram, Facebook, YouTube, TikTok, LINE, LinkedIn and Pinterest, at the sizes those platforms recommended as of September 2026. Platforms do change their specs, so check the official help pages before an important upload. Anything missing can be added under “Custom size”, and custom entries take part in cropping and the ZIP just like the built-in ones. Sizes larger than the source have to be enlarged, and those cards are marked.

All processing happens in the browser with Canvas; images are never uploaded. Downscaling runs in halving steps, so a 400 px avatar cut from a 2000 px photo keeps clean edges. Only WebP output is different: it uses the same libwebp (WebAssembly) build as the WebP converter so the result does not depend on the browser. For a single image resized by long edge or percentage, use the image resizer; for the meta tags that point at the image you just exported, use the OGP wizard.

Settings can also be passed as URL parameters (the image itself is always chosen locally). For example /en/social-image/?presets=ogp,x-post,yt-thumb&format=image/webp&q=80, custom dimensions with /en/social-image/?presets=ogp,1080x1080, or padded output with /en/social-image/?fit=contain&bg=%23faf8f4.

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