Resize any photo to the ideal Threads post dimensions (1080x1350). Free, instant, no upload — smart crop keeps your subject centered.
1. Upload Image
Max 50MB
2. Select Format
Upload an image to see the preview
About the Threads Post Resizer Tool
Threads displays images best at a 4:5 portrait ratio. DCPIXEL resizes and smart-crops your photo to 1080x1350px so it looks sharp and uncropped in the feed, entirely inside your browser.
100% Private — Processed in Your Browser
Every file stays on your device. DCPIXEL processes images entirely using the browser's built-in Canvas API and WebAssembly — zero server uploads, zero data collection.
Premium Features & Batch Processing
Get started with our free tier for single-file operations. Upgrade to DCPixel PRO to unlock high-speed batch processing, local AI background removal, and advanced PDF controls.
Frequently Asked Questions
What are the correct image dimensions for Instagram in 2025?+
Square: 1080x1080px (1:1) | Portrait: 1080x1350px (4:5) | Reels/Stories: 1080x1920px (9:16) | Landscape: 1080x566px. Our presets are updated to match current platform specifications.
Will resizing for social media crop my image?+
Yes, to fit the exact platform ratio without black bars. We use a smart cover-fill algorithm that centers your subject. You can see a real-time preview before downloading.
Can I resize the same image for multiple platforms?+
Yes. Resize for Instagram, then switch the preset to YouTube or LinkedIn and download a new version — all without re-uploading.
What format is the output image?+
PNG by default for maximum quality. This ensures crisp logos, text overlays, and screenshots. For photos, the visual difference from JPG is negligible at social media display sizes.
User Reviews
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