The 2026 Social Media Image Size Cheat Sheet (+ Free Resizer)
Instagram, TikTok, LinkedIn, X, Facebook, YouTube — every platform has its own image dimensions. Here's the complete 2026 size cheat sheet plus a free browser resizer.
Why image sizing matters
Upload a wrong-sized image and the platform will crop, stretch, or compress it — usually right across someone's face or your CTA button. Getting dimensions right the first time keeps your visuals sharp, on-brand, and free of awkward letterboxing. The bonus: correctly sized images load faster, which is a small but real ranking signal on platforms that surface "fast" content first.
Instagram (2026)
- Square post: 1080 × 1080 px
- Portrait post: 1080 × 1350 px
- Landscape post: 1080 × 566 px
- Story / Reel: 1080 × 1920 px
- Profile picture: 320 × 320 px (uploaded as 640 × 640 for retina)
- Carousel: 1080 × 1080 px (square) or 1080 × 1350 px (portrait), same dimensions across all cards
TikTok
- Video / image post: 1080 × 1920 px (9:16)
- Profile picture: 200 × 200 px (upload at 400 × 400)
- Cover image: 1080 × 1920 px with the focal point in the upper third (UI overlays cover the bottom)
- Feed post (single image): 1200 × 1200 px (square) or 1200 × 628 px (landscape)
- Cover photo (personal): 1584 × 396 px
- Company page banner: 1128 × 191 px
- Article header: 1280 × 720 px
- Document carousel (PDF): 1080 × 1080 px per page
X (Twitter)
- In-feed image: 1600 × 900 px (16:9)
- Header: 1500 × 500 px
- Profile picture: 400 × 400 px
- Multi-image post (4 images): 1200 × 600 px each
- Feed post: 1200 × 630 px
- Cover photo: 820 × 312 px (desktop) / 640 × 360 px safe zone (mobile)
- Story: 1080 × 1920 px
- Event cover: 1920 × 1080 px
YouTube
- Thumbnail: 1280 × 720 px
- Channel banner: 2560 × 1440 px (safe zone: 1546 × 423 px for the part visible on every device)
- Shorts: 1080 × 1920 px
- Community post: 1080 × 1080 px (square)
- Standard pin: 1000 × 1500 px (2:3 ratio is what the algorithm favors)
- Story pin: 1080 × 1920 px
- Profile picture: 165 × 165 px
How to resize images in your browser
- Open our image resizer.
- Drop your image in.
- Pick a preset (Instagram Square, YouTube Thumbnail, etc.) or enter custom dimensions.
- Choose JPG or WebP for smaller files, PNG for transparency.
- Download — your original file never leaves your device.
File-format tips per platform
- Instagram, Facebook, X, LinkedIn: JPG at 80–85% quality is the sweet spot. PNG only if you need transparency.
- YouTube thumbnails: JPG at 90% — quality matters because click-through rates depend on visual punch.
- TikTok / Reels covers: JPG. Don't worry about WebP; the platform re-encodes everything.
- Pinterest: JPG. Pinterest aggressively compresses uploads, so start from the highest-quality source you have.
The "smart crop" trap
Every platform applies algorithmic cropping when your image isn't the exact aspect ratio it expects. Faces, logos, and CTAs in the corners get cut off. Always preview before posting — and if you're designing the asset from scratch, leave a 10% margin of "safe space" around the focal point.
Bulk resize for content calendars
If you batch your social content weekly, drop every image for the week into the resizer at once. The browser handles parallel resizing on your CPU — even 100 photos finishes in a few seconds. The output ZIP is organized by source filename, so you can drag the whole folder into Buffer, Later, or your CMS of choice.
Privacy note
Your social-media images often contain identifying details — faces of family, employee badges, location landmarks. Uploading them to a sketchy free resizer is a quiet leak. Our resizer runs in your browser; nothing gets uploaded. More on why that matters.
Bookmark this page — and resize your images free next time a deadline hits.
Keep learning
If you found this useful, a few related guides go deeper on adjacent problems: our file-format reference covers when to pick which format, why file conversion matters in 2026 puts the bigger picture together, and why browser-based conversion is safer covers the privacy architecture every tool on this site is built around. For everyday image work, the image resizer and full converter index are the two pages most readers bookmark.
About this guide
This article is part of the OnlineFileConverter editorial library — practical, vendor-neutral writing on file formats, conversion workflows, and digital privacy. Every recommendation here is something we'd give a friend, not a sponsored placement. Our editorial standards page covers how we update articles, who writes them, and how we handle advertising. If you spot something out of date or want a guide on a topic we haven't covered, tell us — we read every note.
Keep learning
If you found this useful, a few related guides go deeper: our file-format reference, why file conversion matters in 2026, and why browser-based conversion is safer. The image resizer and full converter index are the two pages most readers bookmark.
About this guide
This article is part of the OnlineFileConverter editorial library — practical, vendor-neutral writing on file formats, conversion workflows, and digital privacy. Our editorial standards page covers how we update articles, who writes them, and how we handle advertising. Spot something out of date? Tell us.
Related converters you can try right now
The three tools below are the ones most readers of this guide reach for next. All free, all browser-based, no signup.
- Image resizer — Hit Instagram, X, LinkedIn, and TikTok dimensions exactly.
- JPG to WebP converter — Lighter uploads = faster loads on mobile feeds.
- PNG to JPG converter — Shrink screenshot exports before posting.
