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This is the legacy Captions web app, available at desktop.captions.ai. It is being phased out. For the current Captions web experience, visit captions.ai or see the Web article.

Overview

The legacy Captions app lives at desktop.captions.ai. It features a dark interface with a timeline-based editor, and does not use a credits system. It supports a different set of features from the current Captions web app.

Sign In

Go to desktop.captions.ai and sign in using the same method you used to create your account.
Projects are stored locally on the device and browser you used to create them. They are not synced across devices.

Features

The legacy app supports the following capabilities:
  • AI Creator — Generate videos based on a script or text prompt
  • AI Edit — Automatically edit your video with professional editing styles
  • AI Twin — Create and use a digital clone of yourself in generated videos
  • AI Ads — Generate UGC-style ads for your product
  • AI Shorts — Extract viral clips from long-form video
  • AI Dubbing — Dub video audio into different languages
  • AI Voiceover — Generate voiceovers from text
  • AI Denoise — Remove background noise and boost voice audio
  • AI Sound Effects — Generate and add sound effects
  • AI Music — Add AI-generated music tracks
  • AI Cutout — Remove and replace video backgrounds
  • AI Eye Contact — Simulate eye contact with the camera
  • Timeline editor — Add, delete, split, merge, and reorder clips
  • B-roll and media overlays — Add images and video clips to your project
  • Shots transitions — Adjust transitions between clips
  • Extract audio — Manage audio from added media
  • Scale — Adjust the aspect ratio and format of your project
  • Captions & subtitles — Generate and style captions for your video
  • Export — Download your finished video
For a full feature comparison across platforms, see Captions Features by Device.

Granting Camera & Microphone Permissions

To use features like AI Twin, you’ll need to allow camera and microphone access in your browser. Chrome
  1. Click on the settings icon to the left of desktop.captions.ai in the address bar
  2. Toggle on Camera & Microphone
You can learn more here. Safari
  1. Open Settings
  2. Click Websites
  3. Enable Camera & Microphone
You can learn more here. Firefox
  1. Click on the settings icon to the left of desktop.captions.ai in the address bar
  2. Toggle on Camera & Microphone
You can learn more here.

Keyboard Shortcuts

Press CMD + / on Mac or Ctrl + / on Windows to open the shortcuts panel inside the app.
Global
spacebarPlay / Pause
fEye Contact
rExport
Words
returnEdit spelling of selected word
Move one word left
Move one word right
aAdd word
⌥⌫Delete word
hHide all words
Effects
sSupersize
eEmphasize
tAdd sound
gAdd image
wAdd emoji
Breaks
buAuto break
blLine break
bpPage break
bnNo break
Timeline
⌘kSplit clip at playhead
Delete current clip
⌘↑Jump to previous clip
⌘↓Jump to next clip
Last modified on April 20, 2026