Fundy

Free Social Image Cropper

Crop an image to a social media aspect ratio.

This tool runs in your browser, and inputs stay on your device until you choose to copy or download the result.

Crop for social channels

Workflow Notes

Best for

  • Creating first-pass social assets from one hero image for channels that require strict ratio consistency before manual design refinement.
  • Reformatting a wide or tall source image into a single safe poster crop for stories, short-form video covers, and feed posts.
  • Preparing a single source visual for quick A/B layout testing before editing in heavier design software.
  • Running lightweight manual QA by checking composition, face centering, and logo placement before running platform-level checks.

Check before using it

  • Confirm your target platform first so you pick the right ratio, because the tool only supports fixed ratios from its list and cannot add custom custom sizes.
  • Check the source image for critical subjects, logos, or text near edges. This crop is centered, so off-center subjects can be clipped if they are too close to borders.
  • Use a source file that is not already over-compressed and keep the original master image untouched for future revision cycles.
  • If your goal is a specific pixel target, decide whether you need to set Output width in advance or run the free Image Resizer after cropping.

Review the output

  • Confirm pixel dimensions in the result line and verify output ratio by checking width divided by height equals the selected ratio.
  • Visually inspect for clipped text, faces, product marks, and brand locks in the preview before download.
  • Validate that background clutter or safe margins still look acceptable at the intended display size on a real post card, feed tile, or story frame.
  • Test legibility quickly with a quick zoom check of small text and icon edges, especially for 9:16 and 4:5 where vertical composition often pushes content to edges.

Limits to keep in mind

  • The current crop is centered only; there is no drag-to-position crop box, so manual edge composition edits are not available in this tool.
  • Only PNG export is offered, so transparent or alpha-heavy workflows may still need additional conversion elsewhere.
  • Very high-resolution inputs can be memory heavy in browser canvas processing, which may affect preview speed or fail on older devices.
  • Only the listed aspect ratios are available. If you need another ratio, create a first pass here and finish with another resizer or editor.

Handoff

  • Use Free Image Resizer next when pixel dimensions and exact platform size presets are required after this ratio cut.
  • Use YouTube Thumbnail Analyzer next when you need composition scoring, visual hierarchy review, and publish-readiness checks.
  • Use Image Compressor next when final web upload constraints require lower file weight while keeping visual quality.
  • Use Best Image Sizes for Social Media guide for a final map from ratio to preferred pixel budgets per platform.

How to Use

  1. Start with one clean source image and load it with the Source image file control. If the file is very large, prefer a resized input first so previewing is responsive.
  2. Choose one ratio from the dropdown. Use 1:1 for profile and feed thumbnails, 16:9 for banners, 9:16 for reels or stories, 4:5 for portrait feeds, and 1200:628 for social ads.
  3. If needed, set Output width in pixels. The output height is calculated from the chosen ratio automatically. Leave it blank to keep the tool's crop size.
  4. Click Crop Image. The tool performs a center crop to match ratio math and shows the new pixel dimensions, preview image, and a Download PNG button.
  5. Download the PNG, then move to the next tool stage if needed for exact re-sizing, platform-specific checks, or compression.

FAQ

Is Social Image Cropper free?

Yes. It runs in the browser and does not require an account.

What does it do?

Crop images in your browser to common social ratios, preview the result, and download a PNG output locally.

What should I use next?

Usually Image Resizer is the next step when you want to resize one source image to precise dimensions for upload, social posting, or a production handoff while keeping control in your browser.

Do I need an account or login to use this tool?

No. You can complete one full crop and download in a single session without signing in.

Does the crop run in my browser, or is the image uploaded to a server?

The behavior is browser-based with local input handling and local download, so image data stays on your device in this step.

Can I move the crop area or keep a non-center composition?

Not in this version. The tool applies a centered crop for the selected ratio, so text and subjects should be placed with margins before upload.

Why is output always PNG and why do I still need another tool?

This page is optimized for a clean local PNG export. Use Image Resizer for exact dimensions and Image Compressor for format or size optimization before publishing.

Related Tools

Related Guides

Next useful step

Continue the Workflow

When this step is finished, move to the tool that handles the next production risk.

Free Image ResizerResize one source image to precise dimensions for upload, social posting, or a production handoff while keeping control in your browser. Free Social Post MakerCreate a social post graphic in the browser and switch between square, story, and landscape presets. Free YouTube Thumbnail AnalyzerValidate one local thumbnail image before posting by running brightness, contrast, and composition heuristics, then use the generated notes as a practical edit checklist for the Free Image CompressorReduce image file size in the browser while keeping output quality at an acceptable level for production use.

Privacy

This tool runs in your browser, and inputs stay on your device until you choose to copy or download the result.

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