EN

X header resizer

A 1500 × 500 px header (3:1).

Preset

Drop images here, or paste with Ctrl+V

JPG, PNG, WebP, GIF or HEIC. Several at once is fine.

Settings size, KB limit, format, DPI
1 to 100, empty = automatic

    Your images are processed on this device and never uploaded.

    Crop image

    Drag the box to move it and the corners to resize. With the box focused, arrow keys move it and Shift+arrow keys resize it.

    Example with a real photo

    We ran this tool on the photo below. These are the real results.

    Original4032 × 2690 px · 7.26 MB · JPG
    Result1500 × 500 px · 365.2 KB · JPGShown smaller here; the numbers are for the full file.

    Photo: Unsplash

    What this page does
    Size1500 × 500 px
    Shape3:1
    FormatJPG

    Platform sizes change from time to time. These are the commonly recommended sizes as of November 2026; check the platform's help centre if an upload is rejected.

    How to use it

    1. Pick the preset that matches where the image goes.
    2. Drop your image and check the preview.
    3. Download and upload it.

    Getting the X header size right

    The X header is a wide 3:1 strip. Uploading a normal photo means choosing a thin slice of it in the app, which is fiddly on a phone.

    Your profile picture overlaps the lower left of the header, so keep important details away from that corner.

    Questions

    Is my photo uploaded to a server?

    No. The resizing runs inside your browser with JavaScript, so the image never leaves your device. Once the page has loaded, resizing keeps working even if you go offline.