Free Threads Image Resizer
Resize your images to perfect Threads dimensions. Get optimized images for posts and video thumbnails instantly.
Upload Your Image
Click to browse or drag and drop
JPEG, PNG, or WebP • Max 10MB
Choose Threads Size
Quick Tips:
- • Preview shows exactly what you'll get
- • Images are cropped from center automatically
- • Exported files are optimized PNG format
- • Perfect quality for Threads uploads
Why Use Our Threads Image Resizer?
Instant Processing
Upload and resize your images in seconds
Perfect Dimensions
Exact Threads sizes: Post (4:5), Square (1:1), and Vertical (9:16)
Smart Cropping
Automatically centers your subject for best results
How It Works
Upload Image
Select any JPEG, PNG, or WebP image from your device
Choose Size
Pick your desired Threads format
Export
Download your perfectly sized image ready for Threads
Threads Image Sizes That Actually Matter
Threads shares Instagram's media processing pipeline, so image quality rules are similar. Using the right dimensions prevents compression artifacts and ensures your content looks sharp in the feed.
Post images (4:5 at 1080x1350px) display inline at full width in the Threads feed, giving you the most screen real estate and highest engagement. Square images (1:1 at 1080x1080px) work great for standalone graphics, product photos, and content that needs a balanced composition. Vertical content (9:16 at 1080x1920px) is ideal for video thumbnails and content you plan to cross-post to Instagram Stories and Reels.
This free Threads image resizer handles all three formats. For the full specification, see our complete Threads image sizes guide. Planning to cross-post to Instagram? Use our Instagram image resizer — the 4:5 and 9:16 formats work on both platforms. Want to know when to post? Try our best time to post on Threads tool.
Threads Image Resizer FAQ
What image sizes does this tool create?
This tool creates three Threads-optimized sizes: Post Image (1080x1350px) in 4:5 portrait ratio for maximum feed visibility, Square (1080x1080px) in 1:1 for standalone graphics and product photos, and Vertical (1080x1920px) in 9:16 for full-screen video thumbnails and vertical content.
What file formats are supported?
You can upload JPEG, PNG, or WebP images. All exports are saved as high-quality PNG files, which Threads handles well for both photos and graphics.
Is there a file size limit?
Yes, the maximum upload size is 10MB. This covers most photos and graphics. Threads supports uploads up to 100MB, so our exports will always be well within platform limits.
How does the cropping work?
The tool uses center-crop to automatically resize your image. It calculates the best area to keep based on your selected dimensions and crops from the center, preserving the most important part of your image.
Is this tool completely free?
Yes, 100% free with no registration required. There are no watermarks, no usage limits, and no hidden fees. Just upload, resize, and download.
Will my images be saved or stored?
No. All image processing happens entirely in your browser. Your images are never uploaded to any server. They are processed instantly on your device and discarded when you close the page.
Which Threads post type should I choose?
Choose Post Image (4:5) for regular posts — Threads displays portrait images inline at full width, giving you the most screen space. Use Square (1:1) for standalone graphics, product shots, or carousel-style content. Use Vertical (9:16) for video thumbnails or content you plan to cross-post to Instagram Stories and Reels.
Perfect Threads Images?
Now schedule and manage your Threads posts with Tactic Social
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