ToolGPT

Resize a video for posting on X (Twitter)

Unlike the vertical recipes, the X recipe goes wide: a 16:9 video at 1280×720. Attach a clip, say “get this ready for X”, and ToolGPT fits the picture into that frame in your browser, keeping up to 140 seconds.

  • Runs in your browser
  • No sign-in needed
Drop or choose your filesThe assistant opens with your files and does the rest.Choose Files
Things you can type
street_interview_vertical.mp4
Open ToolGPTAttach a file and describe what you need.

More about the Social Media Video Resizer →

How it works

  1. 1

    Attach the clip

    Add the video with the + button. Landscape recordings and vertical phone videos both work.

  2. 2

    Review the X card

    Ask for X or Twitter. The card previews your video in the wide frame and, for anything over 140 seconds, shows the part that will be kept.

  3. 3

    Apply and download

    Press Apply, or ask ToolGPT to apply it. Download the MP4 from the chat; the original file is not changed.

A wide 1280×720 frame

The X recipe writes a 1280×720 (16:9) MP4 with H.264 video and AAC audio, at your video's frame rate up to 60 fps. A 1080p or 4K landscape video is scaled down to 1280×720, and one that is already 720p keeps its size.

If you would rather keep full resolution, ask ToolGPT for a plain MP4 conversion instead. The recipe always produces 1280×720.

Vertical phone videos in a wide frame

A 9:16 phone video placed in a 16:9 frame becomes a narrow column in the middle, 405 pixels wide. The rest of the frame is filled with a blurred, enlarged copy of the same video, so the post does not show two wide black bars. Black, white and solid colors are available too.

To fill the wide frame with part of the picture instead, ask ToolGPT for a 16:9 crop first, then prepare the result for X.

Up to 140 seconds

This recipe has the longest window of all: 140 seconds, or 2 minutes 20 seconds. A longer video opens with its first 140 seconds selected; drag the window or name the times in the chat.

Frequently asked questions

Will a vertical video be cropped to fit?

No. It is fitted, never cropped, unless you ask for a 16:9 crop yourself.

Does ToolGPT post to X for me?

No. You download the MP4 and post it yourself.

Is my video uploaded to prepare it?

No. The X recipe runs in your browser.

Try it with your own file

Open ToolGPT, attach a file, and type what you want done.

Open ToolGPT

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