Social Media Image Resizer

Wrong image sizes get crops that cut faces, logos, and text. This free browser-based image resizer exports Instagram, TikTok, YouTube, and other social dimensions without uploading your files to a remote editor — ideal when privacy and speed matter.

Resize before upload whenever possible. Platforms compress again on their side; starting from the correct aspect ratio keeps important subjects inside safe zones and reduces soft, overcompressed results.

Feed portrait 1080×1350 (4:5) usually wins vertical space. Square 1080×1080 still works for catalogs. Stories and Reels need 1080×1920 (9:16) with critical content away from top and bottom UI. Profile photos should be uploaded larger than the tiny circular display size.

TikTok and YouTube Shorts also expect 9:16. YouTube thumbnails remain 1280×720 (16:9). Designing once at the wrong ratio and “hoping the platform fixes it” is how text ends up under the share button.

Client work, unreleased products, and personal brand shoots should not need to travel through unknown servers for a simple crop. Local processing keeps drafts on your device. That privacy story is a real differentiator versus upload-first editors.

After resizing, check dimensions and compress if the file is huge for mobile uploads. Pair this tool with the aspect ratio calculator when you are planning a canvas before you design.

Upscaling tiny images until they pixelate. Leaving important text in Story unsafe zones. Exporting heavy PNGs for photo content that should be JPEG/WebP. Forgetting to remove TikTok watermarks before posting to Reels or Shorts.