# Social Media Image Resizer — Resize images for Instagram, YouTube and LinkedIn on Mac One photo in, every size out: Instagram, YouTube, X, LinkedIn, Facebook, WhatsApp and Pinterest. Part of OneMacTools, 151 private tools in one native Mac app (macOS 26 or later); category: Images. Runs on your Mac; nothing is uploaded. Tick the platforms you post to and get every size at once: Instagram square, portrait and story; YouTube thumbnail and banner; X post and header; LinkedIn post and banner; Facebook post and cover; WhatsApp profile and status; and a Pinterest pin. Smart crop keeps faces and the subject in view instead of cutting from the centre, or show the whole photo on a blurred background. Page: https://www.onemactools.com/tools/social-media-image-resizer · Download: https://www.onemactools.com/download · Pricing: https://www.onemactools.com/pricing ## How to use it 1. **Drop your photos.** Add one photo or several. Each gets every size you turn on. 2. **Turn on your platforms.** Instagram and YouTube are on by default. Turn on X, LinkedIn, Facebook, WhatsApp or Pinterest if you post there. 3. **Choose the fit.** Smart crop keeps faces and the subject in view, Centre crop cuts evenly from the edges, and Whole photo puts the uncropped photo on a blurred background. 4. **Click Resize.** Every chosen size is made for each photo, named after the platform and its pixel size. 5. **Post them.** Each photo's sizes are in their own “social sizes” folder inside a new dated folder in Downloads › OneMacTools. Use the Preview (eye) button or Show in Finder. ## Options - **Instagram (post, portrait, story):** On by default. Square post 1080 × 1080, portrait post 1080 × 1350, and story and Reels cover 1080 × 1920. - **YouTube (thumbnail, banner):** On by default. Thumbnail 1280 × 720 and channel banner 2560 × 1440. - **X (post, header):** Post 1600 × 900 and header 1500 × 500. - **LinkedIn (post, banner):** Post 1200 × 627 and banner 1584 × 396. - **Facebook (post, cover):** Post 1200 × 630 and cover 1640 × 624. - **WhatsApp (profile, status):** Profile photo 640 × 640 and status 1080 × 1920. - **Pinterest (pin):** Pin 1000 × 1500. - **Fit:** Smart crop (keeps faces and the subject in view) finds the largest face, or else the most eye-catching area, and crops around it. Centre crop always keeps the middle. Whole photo on a blurred background shows the entire photo, filling the rest of the frame with a blurred copy of it. - **Save as:** JPEG for photos, which makes smaller files, or PNG for graphics with text or flat colour. ## Tips - Start with a large photo. Banners like the YouTube one are 2560 px wide, and a smaller photo has to be enlarged to fill them, which looks soft. - Wide banners crop a lot from a portrait photo. Use Whole photo on a blurred background when nothing should be cut off. - Banners and headers are partly covered by profile pictures and buttons on most platforms. Keep important text and faces near the centre. - Only turn on the platforms you use. Every size is a separate file for each photo. ## Questions **What sizes does it make?** Instagram square 1080 × 1080, portrait 1080 × 1350 and story 1080 × 1920; YouTube thumbnail 1280 × 720 and banner 2560 × 1440; X, LinkedIn and Facebook posts and covers; WhatsApp profile and status; and a Pinterest pin. Turn on just the platforms you use. **Will people get cut off?** Smart crop finds faces and the main subject and keeps them in view, instead of always cropping from the centre. Or put the whole photo on a blurred background so nothing is cut. **What size is a YouTube thumbnail?** 1280 × 720 pixels, a 16:9 shape. Turn on YouTube and the thumbnail is made along with the 2560 × 1440 channel banner. **What's the best size for an Instagram post?** 1080 × 1350 portrait takes up the most space in the feed. Square 1080 × 1080 and story 1080 × 1920 are made at the same time. **How do I post a landscape photo to Instagram stories without cropping?** Choose Whole photo on a blurred background. The full photo sits in the middle of the tall frame, with a blurred copy filling the space above and below. **JPEG or PNG?** JPEG for photos: smaller files that platforms handle well. PNG for graphics with text, logos or flat colour, where it keeps edges crisp.