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Free Twitter/X Header Resizer — 2026 Size Guide

Resize any image to the exact pixel dimensions required by Twitter/X — header banner (1500×500), post image (1200×675), or profile photo (400×400). Instant, browser-based, no upload needed. All dimensions verified against official Twitter/X specifications as of 2026.

Your Twitter/X Header Resizer

Upload an image, pick a Twitter/X preset, choose fit or fill mode, and download the result.

Drop your image here or click to select

Supports JPG, PNG, WebP, and GIF — up to 50 MB

Last updated: May 19 2026

Reviewed by the QuickTooly Team

Twitter / X Image Size Guide

Resize Images for Twitter / X

Twitter/X enforces specific image dimensions for every surface — header banners, post images, and profile photos. Using the wrong size results in cropped banners, stretched layouts, or blurry thumbnails. This tool gives you exact-pixel presets for every Twitter/X format — just upload, click a preset, and download.

Fit vs Fill — Which Mode Should I Use?

  • Fit (letterbox): The entire image is visible inside the target dimensions. Blank areas are filled with white (JPG/WebP) or transparency (PNG). Use this when you need the full image preserved without cropping.
  • Fill (crop to fit): The image is scaled up to cover the full target area, then centered and cropped. No letterbox bars appear. Use this for headers and banners where the exact canvas must be filled edge-to-edge.

Twitter / X Image Dimensions — 2026 Reference Table

Use this table to look up the correct dimensions for any Twitter/X image format. All sizes are in pixels (px).

FormatWidth × HeightAspect RatioNotes
Header Banner1500×5003:1Profile page header — keep key content in center safe zone
Post Image1200×67516:9In-stream tweet image — displays without cropping
Profile Photo400×4001:1Displayed as a circle — keep subject centered

How to Resize a Twitter/X Header — 3 Steps

Step 1: Upload Your Image

Drag and drop any JPG, PNG, WebP, or GIF into the upload area, or click "Select Image" to browse. A thumbnail preview and the original dimensions appear immediately.

Step 2: Pick a Preset and Resize Mode

Click "Header Banner" (1500×500), "Post Image" (1200×675), or "Profile Photo" (400×400). Choose Fit mode to keep the full image visible, or Fill mode to crop it edge-to-edge with no letterbox bars. Select your preferred output format (JPG, PNG, or WebP).

Step 3: Resize and Download

Click "Resize Image." A preview appears showing the final result at the target dimensions. Click "Download Resized Image" to save it — ready to upload directly to Twitter/X.

Frequently Asked Questions

What is the Twitter/X header size?

The Twitter/X header banner (also called the profile banner or cover photo) is 1500×500 px at a 3:1 aspect ratio. Twitter recommends keeping text and logos within the central safe zone, as the banner is cropped differently on mobile, desktop, and the Twitter app.

What is the X header size in 2026?

As of 2026, the header banner on X (formerly Twitter) remains 1500×500 px. The maximum file size allowed is 5 MB. JPG and PNG are both accepted; PNG is recommended for graphics with text or sharp edges.

What is the Twitter profile photo size?

Profile photos are displayed as a circle at 400×400 px. Upload the highest resolution you have — Twitter/X will downsample it automatically. Keep the main subject centered to avoid the circular crop cutting off edges.

What image size should I use for Twitter/X posts?

In-stream tweet images display best at 1200×675 px (16:9 ratio). This fills the full card width without cropping. Single-image tweets also support portrait images, but the 16:9 landscape format gets the most screen space in the timeline.

Is my image uploaded to a server?

No. All processing happens locally in your browser using the Canvas API. Your image never leaves your device and is never stored anywhere.

Which format should I choose for my Twitter/X header?

Use PNG for headers containing text, logos, or sharp graphics — it preserves hard edges without compression artifacts. Use JPG for photographic headers where file size matters. WebP is not accepted by Twitter/X directly, but you can use it as an intermediate export and convert separately.

What is the Twitter header safe zone?

The header banner is 1500×500 px, but Twitter/X crops it differently on mobile versus desktop. Keep critical text, logos, and faces within the central 1260×360 px area to ensure they remain visible across all devices. The far left and right edges are often hidden on mobile screens.

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