Creator workbench catalog

X (Twitter) header image size - 1500×500 (2026)

The correct X (Twitter) header image size is 1500×500 pixels. Resize your own image to exactly that, free, without uploading it anywhere.

X (Twitter) post image size - 1600×900 (2026)

The correct X (Twitter) post image size is 1600×900 pixels. Resize your own image to exactly that, free, without uploading it anywhere.

X (Twitter) profile picture size - 400×400 (2026)

The correct X (Twitter) profile picture size is 400×400 pixels. Resize your own image to exactly that, free, without uploading it anywhere.

X (Twitter) tools - specs, converters, safe zones and format guides

Everything for posting to X (Twitter): aspect ratio and length limits, a safe-zone overlay, a caption checker, format compatibility answers and free browser-based cropping and compression. No login.

X (Twitter) caption character counter - free

Check your caption against X (Twitter)'s 280-character limit in real time. Free, nothing leaves your browser.

X (Twitter) safe zone overlay - free

X (Twitter) safe zone: top 4%, bottom 6%, sides 4% covered by the app's own interface. Free, nothing is uploaded.

X (Twitter) video spec cheat sheet - aspect ratio, length, file size

X (Twitter) spec at a glance: 1920 x 1080px, 16:9 or 1:1 aspect ratio, up to 2 minutes 20 seconds for most accounts, ~512 MB, 280-character caption limit. Free, no login.

X (Twitter) video length checker - free, no upload

Measure a local video's duration for X (Twitter). up to 2 minutes 20 seconds for most accounts. Runs in your browser; no upload.