Subtitle Edit vs Subvideo.ai

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.

Subvideo.ai creates subtitles from audio or video and provides a browser-based studio for editing text, timing, styling, and synchronization. Users can translate subtitles, identify speakers, and export subtitle files or video with captions burned in. Free subtitle downloads include SRT, ASS, VTT, SBV, and TXT. A voiceover workflow lets users choose a voice and language, adjust speed and pitch, and export an audio track or rendered video. The site presents workflows for YouTube, TikTok, Netflix, Premiere Pro, Final Cut Pro, and DaVinci Resolve. It supports common audio and video uploads, including MP3, WAV, MP4, MOV, and WEBM. Guest mode allows one upload per day; a free account allows three and includes voiceover for media projects. Ultimate costs $9.99 a month and adds multiple-file uploads, priority processing and support, and burn-in without the free watermark. File and processing limits apply to every plan.