Explore Polyglot

Get Polyglot

For Apple Silicon · macOS 14.4+

Local AI. Your Mac.
Local AI. Built for Mac.
Polyglot

Create and translate subtitles.
Right on your Mac.

Turn audio and video into timed subtitles. Review the text, translate it into other languages, and export SRT files — all with local processing.

Download for Mac

Apple Silicon · macOS 14.4 or later

No media uploads.Transcription and translation run locally.
No account needed.Download the models once, then work offline.
Standard SRT files.For compatible video editors and players.

Inside Polyglot

Edit your subtitles.
Preview them on your video.

Watch the video, review each timed line, and edit your original text or translations in the same workspace.

Polyglot’s subtitle editor showing video playback and editable, timed English subtitles.
Review subtitles alongside the video. Click a line to edit its text.View full size

Actual Polyglot app · Prepared sample project

From media file
to subtitle file.

Generate a first draft, review the text and export subtitles for your video editor or player.

01

Open your audio or video.

Choose a file on your Mac or import a supported video link. Select the languages you want to translate into.

02

Generate timed subtitles.

Local AI transcribes the speech and translates the subtitle text. Your recordings aren’t uploaded for processing.

03

Edit the text. Export SRT.

Check names, phrasing and translations alongside playback. Export one language or all completed languages.

Processed on your Mac

Your recordings
stay on your device.

Transcription, translation and video enhancement run locally. Download the models once, then process local files without an internet connection.

See when Polyglot connects to the internet
AI processing
On your Mac
Projects & translations
Saved locally
Account
Not required

Review, refine
and export.

AI gives you a starting point. Keep control of the text, translations and files you share.

Edit subtitles with playback.

Play from a subtitle to check it against the recording. Edit the original text and translations without changing the source timing.

Resume a saved project.

Projects and completed translations are saved on your Mac. Reopen your work and continue editing.

Enhance video locally.

Adjust resolution, noise, sharpness and motion. Optional AI models offer additional enhancement. Preview a short scene before exporting a new video.

Export subtitles by language.

Save one language or all completed languages as UTF-8 SRT files. Add them to a compatible editor or player; SRT export doesn’t burn captions into the video.

Before you download.

What Mac do I need?

An Apple Silicon Mac running macOS 14.4 or later, at least 8 GB of memory, and approximately 7 GB of free disk space for initial subtitle model setup. SeedVR2 enhancement requires at least 16 GB of memory.

Does Polyglot work offline?

Transcription, translation and enhancement run locally after the required models have been downloaded. Model downloads, video-link imports and optional app update checks require an internet connection.

Which languages can it transcribe?

Automatic speech recognition supports 25 European languages. Translation languages are selected separately; a translation option does not imply support for recognizing speech in that language.

Should I review the generated subtitles?

Yes. AI can mishear names, accents and overlapping speech, or miss the meaning of an idiom. Review the text and translations before exporting.

How do app updates work?

The new updater-enabled release supports signed updates through Sparkle. If your current version has no “Check for Updates…” menu, install the new release manually once.

Polyglot for Mac

Create your first subtitles.

Import a file, review the text, and export SRT.

Download for Mac

Apple Silicon · macOS 14.4 or later