Media.io

Media.io, part of Wondershare, is an online video converter and editor that supports auto-transcription for closed captions. Users can upload videos, trim or crop them, then generate subtitles via speech recognition. A timeline editor lets you refine text blocks and sync them precisely. The platform also includes file conversion (e.g., MP4 to MOV), image editing, and audio manipulation tools. With a straightforward UI and cloud processing, Media.io is ideal for quick projects needing basic editing and captioning features without installing heavy software locally.