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Every part of a branded short.

Design, script, captions, voice and your Brand Kit in one place. Out comes a 1080 × 1920 MP4, ready to post.

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Designed by people. Written by AI.

The AI writes only words. The design does the motion, so every video looks finished.

  • Hand-made designs

    Every video starts from a motion design made by a person, not generated. It sets every position, size, timing and animation.

  • Words that fit

    The AI writes your topic or script into the design, line by line. Each line has a limit, so text never overflows or gets cut off.

  • Or your own video

    Upload a talking-head video or a screen recording. The AI picks timed overlays from what you say and adds captions.

Everything a short needs.

Script, voice, captions and export, without switching apps.

  • A script that hooks

    Give a topic. Get a hook, the key points and a clear ending, timed to your length.

  • Word-synced captions

    Each word lights up as it's spoken, in your Brand Kit's colors.

  • An AI voiceover

    Pick a voice from ElevenLabs or Google with your own key. It costs no credits.

  • Graphics on your own video

    Upload a talking-head video or a screen recording. Get timed overlays and captions on top.

  • Edit any line

    Change the words in any scene. Every line has a limit, so the text always fits the design.

  • Ready to post

    A 1080 × 1920 MP4 at 30 fps. Text stays clear of each app's buttons.

Set your Brand Kit once.

Start from the design's own colors and fonts, or use yours. Every video you make follows it.

Your brand
Name, handle, and your logo for light and dark backgrounds.
Colors
Your colors in each of the design's color slots.
Fonts
Headline and body fonts, from the ones the design supports.
Captions
On or off, a caption style and where it sits on screen.
Call to action and logo
Your end-card line, where your logo sits, and an intro or outro card.
Voiceover
An AI voice from ElevenLabs or Google, with your own key.

How it works.

Set up your look one time. After that, every video starts from a single line.

Step 1

Set your brand once.

Pick a design, your colors and fonts. Add your logo, handle and call to action. Every video you make uses them.

Step 2

Then give it an idea.

A topic, your own script, or a video you filmed. FASTMO writes the words into the design, line by line.

Step 3

Edit, then export.

Change any word in the editor. Export a 1080 × 1920 MP4 with captions, ready to post.

Made for vertical video.

Text stays clear of the buttons each app puts on top of your video.

  • 1080 × 1920Vertical 9:16 MP4
  • 30 fpsSmooth on every app
  • 60 sLongest video on Pro
  • 0Credits for AI voice with your own key

Make your first short today.

The Free plan has 20 credits every month. No card needed.

Start freeSee pricing