AlphaSub 1.4.0
Free download of the AlphaSub app (universal, Developer-ID signed, notarized).
The source in this repository is the Apache-2.0 open core; the app below is the complete product — free to use, Pro features unlocked by a (currently free) Beta license. See alpha-sub.com.
AlphaSub 1.4.0
Timeline markers. Drop commentable markers on the waveform (press M), drag to move, double-click to edit. Export to DaVinci Resolve (EDL), Premiere Pro (CSV) and Final Cut Pro X (FCPXML).
Counting-leader detection. A master starting just before a round hour (e.g. 00:59:50:00) is recognised as an hour-01 programme — the leader is shaded on the timeline and the programme start reads 01:00:00:00, while subtitles stay aligned to the audio.
AI is now free and built in. On-device transcription, translation, diarization, Reformat and Improve-by-Context ship in the stable app. Connect external models with your own account: cloud subscriptions (OpenAI, Claude, Gemini, Mistral, OpenRouter, DeepSeek, Kimi, GLM, Groq, Together, Ollama Cloud) or local/LAN runtimes (Ollama, LM Studio, MTPLX on another Mac, LocalAI, vLLM) — with live model lists and one-click OpenRouter sign-in. Local runtimes are free; cloud subscriptions are Pro.
Translation. "Translate entire track into a new track" plus an automatic post-translation line-layout pass.
Editing & interface. Single-frame stepping with ←/→; compact bottom settings bar (type or scroll to adjust); better editor fit on short windows; tidier titlebar.
Pro features (broadcast & cinema export, DeckLink, cloud AI, Season Bible) need a Beta license — free during the test phase. Everything else is free.
Signed with Developer ID, notarized + stapled by Apple. Universal (Apple Silicon + Intel).