ToolBirch

Social Media Image Resizer

Crop and scale images to platform-standard sizes.Social Media Tools

Social Media Image Resizer

Crop/scale an image to platform-standard sizes from one maintained preset list. Cover fills the frame; Contain letterboxes it.

JPG, PNG or WebP, up to 25 MB.

About this tool

One image, one preset list: YouTube thumbnails, Instagram squares and stories, X posts, OG images, LinkedIn and Facebook covers. Cover mode crops to fill; contain mode letterboxes.

How to use the Social Media Image Resizer tool

  1. Choose the image. JPG, PNG or WebP up to 25 MB.
  2. Pick the platform size. From the maintained preset list.
  3. Resize and download. JPG at 92 percent quality, correctly cropped or fitted.

Supported formats

Input

  • Plain text or file input

Output

  • Converted or analysed output

Inputs are validated before anything is processed. Invalid values and unsupported files are rejected with a clear error instead of failing silently.

Frequently asked questions

Why a preset list?

Platform sizes change; one config beats hardcoded numbers in several tools.

Cover or contain?

Cover fills the frame edge-to-edge (crops); contain fits everything (letterboxes).

Why JPG output?

Platform uploads re-encode anyway; JPG at 92 percent is visually identical and universally accepted.

Privacy

Everything you enter stays in this browser tab. There is no upload endpoint for tool inputs, no account, and no server-side copy of your text or files. Results are produced locally and disappear when you close the page.

No account is required and no file is ever uploaded. See the privacy policy for details about analytics and the limited data this site stores.

Known limitations

  • Animated sources export their first frame.

Related tools

Other free tools from the same collection.

Hashtag FormatterTurn words into clean, CamelCase hashtags.Social Caption FormatterTidy captions: trim lines, collapse blanks, keep emoji.Social Character CounterCheck a post against every platform limit at once.YouTube Thumbnail PreviewSee your thumbnail inside a video-site style result card.