VoiceIndex AI

For voiceover, type or paste your script, choose a voice, preview the result and download an MP3, with no account needed. For transcription, upload an audio or video file or record live, then export the transcript as TXT, SRT or VTT depending on whether you want text or timed captions. The subtitle tools take an existing file and fix what is wrong with it: shift the timeline if captions are consistently early or late, split a long file, merge several together, convert between SRT and VTT, or translate the captions into another language. Audio tools handle silence removal, volume and speed adjustment before the final assembly.

• •Free Text to Speech With MP3 Download - Preview then download, with no account required for the core function
• •Complete Subtitle Toolkit - SRT to VTT, timeline shift, split, merge and CapCut to SRT in one place
• •AI Subtitle Translation - Translate caption files rather than re-transcribing in another language
• •Speech to Text - Accepts MP3, WAV, M4A and MP4, exporting TXT, SRT or VTT, with live recording supported
• •Timeline Shift - Fix captions that are consistently early or late without re-timing every line
• •Audio Utilities - Silence removal, volume adjustment, speed change and audio-to-video conversion
• •Words to Time Calculator - Estimate spoken duration from a script before recording anything
• •Voice Cloning - Available as a Pro feature alongside the free tools

For video creators who need a voiceover and captions and do not want to pay a subscription for either, and particularly for anyone whose captions have drifted out of sync and who has been looking for a timeline shift tool. CapCut users get direct project-to-SRT export. Podcasters can transcribe episodes for show notes. Faceless content creators get the voiceover generation that the format depends on. The interface is bilingual Chinese and English, and it is hosted on a personal subdomain rather than a conventional product domain, which is worth knowing before building a workflow around it.