Documentation

Installing AI Subtitle Studio and first launch

How to download, install and open AI Subtitle Studio on Windows and macOS, and what to expect the fi...

Activating your license

How the license activation screen works, what "Activation required" means, and how to activate, chec...

Installing dependencies

AI Subtitle Studio manages six external tools for you. Here's what each one does and how to install...

Interface tour

A guided overview of AI Subtitle Studio's sidebar navigation and the five main areas of the app.

Dashboard

How to add videos, read the file queue, extract embedded subtitle tracks, and transcribe audio with...

The Edit Subtitles file list

The Edit Subtitles screen's list view: adding files, bulk clean/sync actions, and opening a file in...

The editor workspace

What every button in the Edit Subtitles editor header does: List, Undo/Redo, Save, Export, Tracks, A...

Editing text and timing

How the Subtitle Segments table works: selecting, editing, merging, adding, and deleting subtitle bl...

The waveform and playback controls

How the audio waveform panel works in the subtitle editor: zoom, transport controls, playback speed,...

The Cleanup tool

Every option in the offline, rule-based Cleanup dialog: content removal, text cleanup, timing fixes,...

AI Clean Up

How the DeepSeek-powered AI Clean Up feature works: the Fix/Flow/Polish modes, context hints, and ba...

Syncing subtitles to audio

How Auto-Sync realigns subtitle timing to the actual audio, including video-sync vs reference-subtit...

Exporting and saving

The difference between Save and Export in the subtitle editor, and the four export formats: SRT, VTT...

Editor keyboard shortcuts

The full list of keyboard shortcuts available in the Edit Subtitles editor workspace.

Translate

How to translate subtitles with DeepSeek AI: loading files, choosing languages and style, batch sett...

Convert

How to batch-convert ASS, SSA, SUP, VobSub and MicroDVD subtitle files to SRT, including the built-i...

Settings → Dependencies

Reference for the Dependencies settings screen — installing, updating and removing FFmpeg, Whisper.c...

Settings → General

Every option on the General settings screen: default transcription language/model, subtitle layout,...

Settings → Transcription Models

How to download and manage Whisper model sizes — Tiny through Large, plus the Silero VAD model.

Settings → AI Providers

How to configure your DeepSeek API key, which unlocks AI subtitle translation and AI Clean Up.

Settings → License & Activation

Reference for the license screen — activate, check status, and deactivate this installation.

Settings → About & Credits

What's on the About & Credits screen: app version, links, and open-source attributions.

Managing your devices

How the per-license device limit works, and the split between what the app can manage and what the w...

Troubleshooting common issues

Fixes for the most common AI Subtitle Studio problems: missing dependencies, empty transcriptions, g...