Social Media Image Resizer
Resize and crop images to exact pixel dimensions for Instagram Post (1080x1080), TikTok/Story (1080x1920), YouTube Thumbnail (1280x720), or any custom size. All processing happens in your browser.
How It Works
- Go to toolyy.net and select the Social Resizer tool.
- Upload your image and choose a platform preset or enter a custom size.
- Adjust the crop area by dragging, then download your perfectly sized image.
Why Use Toolyy?
- 100% Private — your files never leave your device. All processing runs locally in your browser.
- No Account Required — no sign-up, no email, no login. Just open and use.
- No File Size Limits — no artificial server caps. The only limit is your device’s memory.
- Completely Free — no premium tiers, no watermarks, no per-file fees.
Frequently Asked Questions
What are the exact image sizes for social media platforms in 2026?
Instagram Post: 1080×1080 px. Instagram Story / TikTok: 1080×1920 px. YouTube Thumbnail: 1280×720 px. LinkedIn Post: 1200×627 px. X (Twitter) Post: 1600×900 px. Facebook Post: 1200×630 px. Pinterest Pin: 1000×1500 px. These are the recommended pixel dimensions for maximum clarity on each platform.
Is my photo uploaded to a server?
No. All resizing and cropping happens locally in your browser using the HTML5 Canvas API. Your images never leave your device — not even temporarily. This makes it safe to resize confidential or personal photos.
What aspect ratio should I use for Instagram Reels and TikTok?
Instagram Reels and TikTok both use a 9:16 vertical aspect ratio at 1080×1920 pixels. This is the same ratio as a smartphone screen held in portrait orientation. Toolyy's preset handles this automatically.
Can I resize images without losing quality?
Upscaling a small image will reduce quality because new pixels must be interpolated. Downscaling from a larger original preserves quality. For best results, start with the highest resolution source image you have. Toolyy uses the browser's high-quality bicubic interpolation algorithm.
What is the best image format for social media?
JPEG is best for photographs — small file size with good quality. PNG is best for graphics, logos, and images with text or transparency. Most platforms accept both formats. Toolyy outputs JPEG by default for photos and PNG when transparency is detected.
Does this work for YouTube channel banners?
Yes. YouTube recommends 2560×1440 px for channel banners (TV display) with a safe area of 1546×423 px for mobile. Enter these custom dimensions in Toolyy to create a perfectly sized banner.
Can I crop and resize multiple images at once?
Currently, Toolyy processes one image at a time to give you precise control over the crop area. This ensures each image is framed exactly the way you want it for each platform.
Social Media Image Size Reference Guide (2026)
Each social media platform has specific image dimension requirements. Using the wrong size causes cropping, blurriness, or letterboxing. This table lists the recommended pixel dimensions for every major platform.
| Platform | Content Type | Dimensions (px) | Aspect Ratio |
|---|---|---|---|
| Square Post | 1080 × 1080 | 1:1 | |
| Portrait Post | 1080 × 1350 | 4:5 | |
| Story / Reel | 1080 × 1920 | 9:16 | |
| TikTok | Video / Photo | 1080 × 1920 | 9:16 |
| YouTube | Thumbnail | 1280 × 720 | 16:9 |
| YouTube | Channel Banner | 2560 × 1440 | 16:9 |
| Post Image | 1200 × 630 | 1.91:1 | |
| Cover Photo | 820 × 312 | 2.63:1 | |
| X (Twitter) | Post Image | 1600 × 900 | 16:9 |
| X (Twitter) | Header Photo | 1500 × 500 | 3:1 |
| Post Image | 1200 × 627 | 1.91:1 | |
| Cover Photo | 1128 × 191 | 5.91:1 | |
| Standard Pin | 1000 × 1500 | 2:3 |
Why Image Dimensions Matter for Social Media
Avoid auto-cropping: Platforms automatically crop images that don't match their expected aspect ratios. A landscape photo uploaded as an Instagram Story gets zoomed in and loses important content at the edges.
Maximum sharpness: Using the exact recommended pixel dimensions ensures your image displays at full resolution without scaling artifacts. Uploading undersized images causes visible blurriness on high-DPI screens.
Algorithm advantage: Social media algorithms favor content that looks professional. Correctly sized images receive higher engagement rates because they display as intended in feeds, stories, and search results.
Quick Tips for Better Social Media Images
- Start with high resolution: Always begin with the largest source image available. Downscaling preserves quality; upscaling creates blur.
- Use the rule of thirds: Place key subjects at intersection points when cropping to maintain visual balance.
- Keep text within safe zones: Platform UI elements (profile icons, like buttons, captions) overlay edges of images. Keep important text centered.
- Test on mobile: Over 80% of social media browsing happens on phones. Preview your cropped images at phone screen size before posting.