Does my image actually stay on my device?

Yes. The resize runs in your browser using the Canvas API. We never see, store, or transmit your image. You can verify this in your browser's network tab — only static files load, no upload requests.

What's the catch? Why is this free?

No catch. The whole tool runs in your browser, so there are no servers and no bandwidth costs. We're validating demand first; a paid tier with batch resize and API access may come later.

Can I batch resize multiple images?

Yes — one click exports your photo resized to all 17 marketplace presets as a ZIP. Single-image batch export is built in; multi-image upload is on the roadmap.

Do you support my country's platform?

Yes — imgsize.cc supports Amazon (US, IN), Etsy, Shopify, Walmart, Flipkart, Instagram, TikTok, YouTube, LinkedIn, X, Facebook, Pinterest, Threads, Mastodon, Twitch, Snapchat, Behance, Substack, Medium, Dribbble, Tumblr, Vimeo, SoundCloud, Discord, WhatsApp and Spotify. If we don't have your platform yet, request it via email.

What image formats can I export?

JPEG, PNG, TIFF, and GIF. PNG is the default for product photos because it preserves transparency and is the format Amazon prefers. JPEG is smaller and great for social posts.

Post Image Size: 1600×900 (2026 Spec)

X (Twitter) post image image size: the 2026 spec

Getting X (Twitter) post image image dimensions right matters for both reach and visual quality. This guide covers the official 1600×900 pixel specification, format requirements, and common pitfalls when preparing images for X (Twitter) post image.

Why 1600×900 pixels

The 1600×900 standard is X (Twitter) post image's recommended upload dimension. Files smaller than this are auto-upscaled and render blurry on high-DPI screens; files larger are downscaled by X (Twitter) post image's CDN. The aspect ratio is 16:9.

Specification breakdown

Size: 1600×900 px (16:9)
Format: JPEG, PNG, WebP
Max file size: 5 MB

The "safe area" inside the frame

Crop the central content of your image to the central 70% horizontal, 80% vertical. X (Twitter) post image may crop or overlay UI elements near the edges, so critical content should stay well within the safe zone.

Common mistakes

Uploading below 600×338 — blurry
Vertical source — heavily cropped on desktop timeline

Frequently asked questions

16:9 vs 1:1 vs 4:5? All three are accepted. 16:9 takes most width on desktop.

How imgsize.cc handles it

Drop your source image into the workbench above. The crop box defaults to the 16:9 aspect ratio that matches X (Twitter) post image's spec. Resize, crop, and download as a 1600×900 pixel PNG — all in your browser, no upload required.

Post Image

Spec details