Subtitle Edit
An open-source subtitle editor for Windows, macOS and Linux, with Whisper transcription and translation through Ollama or LM Studio.
Subtitle Edit is an MIT-licensed subtitle editor for Windows, macOS and Linux. It's for people creating captions, translating dialogue or fixing subtitles that don't match the video. Its core editing, conversion and video playback work offline on your device, with optional AI tools for transcription and translation.
A timeline with audio waveforms and spectrograms helps you match subtitle timing to speech. You can shift an entire subtitle file, adjust individual lines or correct timing against another subtitle. Whisper handles speech recognition, while Ollama and LM Studio let you use local LLMs for automatic translation.
The editor reads and converts formats such as SubRip, Advanced Sub Station Alpha and WebVTT. It can extract embedded subtitles from Matroska and MP4 files and use OCR to turn image-based DVD and Blu-ray subtitles into editable text. Batch conversion covers groups of files.
For cleanup, it includes spell checking with LibreOffice dictionaries, common-error checks, line splitting and merging, and subtitle comparison. You can also create karaoke effects, export subtitle images or generate video with captions burned in.
Local auto-backups stay on your machine. Optional online services include Google Translate, DeepL and speech tools from ElevenLabs, Azure and Google. When you choose an online service, the data needed for that request goes directly to the selected provider.
