How to Add Live Subtitles to Any Video on Your Computer
You do not need to edit a video to add subtitles. You do not need to find an SRT file. You do not need to sync timing manually. Seagull adds live translated subtitles to any video playing on your computer, in real time, as you watch.
The old way vs the new way
Traditionally, adding subtitles to a video meant opening a video editor, typing out each line, syncing the timing by hand, and exporting a new file. Or you searched the internet for a matching SRT subtitle file, loaded it into VLC, and hoped the timing was right. Both methods are slow, tedious, and impossible for live content.
The new way is real-time audio translation. Seagull listens to the audio playing on your computer and generates translated subtitles as a floating overlay on your screen. You do not touch the video file. You do not need to know anything about subtitle formats. You just watch and read.
Step-by-step: live subtitles in 60 seconds
1. Download Seagull from getseagull.com (Mac, Windows, or Linux). 2. Open any video in any app: Netflix in your browser, a local file in VLC, a YouTube video, a Zoom recording, anything. 3. Launch Seagull, set the source language to what is being spoken and the target language to what you want to read. 4. Press Start. Subtitles appear as a floating overlay within seconds.
The overlay stays on top of all windows and can be repositioned anywhere on your screen. You can resize it, adjust it, and it works in full-screen mode too. It continues translating as long as the video plays.
Every video source works
Netflix, Disney+, Amazon Prime, HBO Max, YouTube, Twitch, Vimeo, Bilibili, Crunchyroll, Spotify video podcasts, Zoom recordings, Google Drive videos, local MP4/MKV/AVI files in any media player. Seagull captures system audio, so if your computer can play it, Seagull can subtitle it.
This is especially useful for content that has no subtitles at all: foreign YouTube videos, unlisted recordings, lecture captures, webinar replays, and archived streams. Seagull does not need existing captions to work. It translates the audio directly.
How to Get Started
Available for Mac, Windows, and Linux. The app installs in seconds and requires no configuration.
Choose the language being spoken and the language you want to see. Seagull supports 40+ languages out of the box.
Seagull will transcribe and translate audio from any app in real time. Captions appear in a small overlay on your screen.
Frequently Asked Questions
Do I need to edit the video to add subtitles?
No. Seagull adds subtitles as a live overlay on your screen. The video file is not modified. You just watch normally while translated subtitles float on top.
Can I add subtitles to a video in a language I do not speak?
Yes. That is exactly what Seagull is designed for. It translates the spoken audio into subtitles in your language, so you can understand videos in any of its 60+ supported languages.
Does this work with Netflix and other streaming platforms?
Yes. Seagull captures system audio from your desktop, so it works with Netflix, Disney+, Amazon Prime, and every other streaming platform without any browser extensions or plugins.
Available for Mac, Windows, and Linux. 1 hour free trial included.