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For Apple Silicon · macOS 14.4+

Local AI. Your Mac.

Polyglot features

Your files.
More possibilities.

Create from a recording. Translate existing subtitles. Find every saved track in Files, manage its context in Projects, and prepare footage in Enhance video.

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Apple Silicon · macOS 14.4 or later · 7-day free trial

Generate subtitles

Turn recorded speech into editable subtitles. Generate a draft on your Mac, check every line, and export an SRT file for your editor or player.

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Polyglot generate subtitles workspace, prepared sample.

Translate subtitles

Translate a recording’s subtitles into the languages your audience speaks. Start with media, a saved project, or an existing SRT or VTT file.

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Polyglot translate subtitles workspace, prepared sample.

Translate SRT files

Open the subtitles you already have. Choose one or more languages, translate locally, and export a separate SRT for each audience. No video required.

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Polyglot translate srt files workspace, prepared sample.

Files & projects

A clear home for the subtitles you create and import. Find every saved track in Files, and manage each recording and its languages in Projects.

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Polyglot files & projects workspace, prepared sample.

Transcribe audio & video

Turn interviews, lectures and recordings into text you can review alongside the source. Transcription runs locally on your Mac.

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Polyglot transcribe audio & video workspace, prepared sample.

Edit & export subtitles

Make the last pass on your subtitles. Edit words directly in the timeline, compare them with the original, and adjust each language’s timing.

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Polyglot edit & export subtitles workspace, prepared sample.

Convert SRT & VTT

Open an SRT or WebVTT file and export the format your editor or player needs. Convert locally, with no video or AI model required.

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Polyglot convert srt & vtt workspace, prepared sample.

Export readable transcripts

Take your reviewed words into notes, documents and editing workflows. Export plain text or copy it, with timestamps when you need a way back to the recording.

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Polyglot export readable transcripts workspace, prepared sample.

Create bilingual subtitles

Put the original and a translation together in each subtitle cue. Useful for language study, translation review and audiences who want both lines.

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Polyglot create bilingual subtitles workspace, prepared sample.

Adjust subtitle timing

When every subtitle is early or late by the same amount, move the whole track. Keep the words and cue lengths while adjusting their place in time.

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Polyglot adjust subtitle timing workspace, prepared sample.

Enhance & upscale video

Refine your video with local controls and optional AI enhancement. Compare a short preview before committing to the full export.

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Polyglot enhance & upscale video workspace, prepared sample.

Compress video

Set a maximum size in megabytes, choose your export settings and save a new MP4. Polyglot checks the completed file before delivering it.

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Polyglot compress video workspace, prepared sample.

Import video links

Bring a supported video into your local subtitle workflow. Download the recording first, then transcribe, translate and review it on your Mac.

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Polyglot import video links workspace, prepared sample.