Subtitle Edit vs VisualSubSync

Subtitle Edit is a free subtitle editor for creating, styling, converting, and reviewing subtitles. It runs on Windows, macOS, and Linux, and its documentation covers the cross-platform Subtitle Edit 5, which uses an Avalonia-based version. The editor supports speaker identification, caption styling, burn-in, and export to other formats; documentation references SRT, WebVTT, and ASSA. Speech-to-text options include Whisper, Qwen3 ASR, Crisp ASR, and related engines. Translation tools include automatic translation and local engines, while OCR support includes Tesseract, PaddleOCR, and cloud engines. Video tools handle burn-in, re-encoding, cutting, and remuxing. For proofreading, it can use llama.cpp, Ollama, or an OpenAI-compatible endpoint. The seconv command-line tool supports headless and bulk conversion, and documentation covers creating and installing plugins. The open-source project is maintained at SubtitleEdit and hosted on GitHub Pages. Documentation, a FAQ, and contributing guidance are available. It is free, with no stated free-tier limits.

VisualSubSync is a Windows subtitle editor built around an audio waveform. Users create subtitles by selecting audio regions and entering text, or load plain-text or RTF transcripts for synchronization. It supports SRT and SSA/ASS formats and exports SRT. Checks flag overlapping subtitles, display times that are too short or long, and lines exceeding a configured length; speed indicators and network suggestions support review. Network mode lets others submit missing words or subtitle suggestions through a browser. A translation mode displays a second subtitle file for reference without editing it. Work can begin with a video, followed by WAV audio extraction and waveform editing. Playback uses Windows DirectShow, and some files may need codecs or splitter filters. The project lists version 1.0.1, dated 2013-06-29, and is released under GNU GPL version 2.0. The maker describes it as a hobby project developed in Delphi and C++.