SubStudio

SubStudio is a web-based tool that generates subtitles for your videos automatically. Upload a video file up to 500MB or paste a direct media link — the AI handles transcription, timing, and styling in one go. It supports MP4, MOV, WEBM, MP3, and WAV formats, and processing usually takes one to three minutes depending on length.

The tool uses Whisper for transcription and offers word-level timestamp accuracy. You get six built-in style presets: Classic, TikTok, Modern Box, Cinematic, Outline, and Bold Center. After processing, you can edit the subtitles, review the timing, and export the result — all within the same interface. A sample video is available if you want to test it without uploading anything.

SubStudio is useful for content creators, video editors, and social media managers who need captions quickly. It works for short-form social clips, interview transcripts, or any video that needs readable subtitles. The free tier gives you one credit to start, and the interface is straightforward — no account required to try the demo.