XPost Converter

Video

Ever tried posting a phone video to X from your PC, only to get an error? XPost Converter converts your video into an MP4 format (H.264+AAC) that works with X's free plan. Nothing is uploaded to a server — everything happens right in your browser, so your privacy stays safe.

Try XPost Converter →

This tool is completely free to use directly in your browser.
No registration or installation required.

When to use it

When you want to post a phone-recorded video to X from your PC
When your video upload to X fails due to format issues
When you want to convert a video without uploading it to a server

Key features

Supports major formats

Supports MP4, MOV, AVI, MKV, and WEBM formats

Auto H.264+AAC conversion

Automatically converts to H.264+AAC

Meets X's requirements

Meets X's requirements (under 512MB, under 140 seconds)

Drag-and-drop

Simple drag-and-drop upload

Runs in your browser

Nothing sent to a server, no sign-up required

Want to know why some phone videos fail to post on X, and how the conversion works? Read "Convert Phone Videos to MP4 for X."

June 18, 2026Why You Can't Post Videos to X — And the Tool I Built to Fix It

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