Free AI narration audio tool
Add a voiceover to video free in the browser. Time narration against a video without uploading it, generate a voice or add a recording, preview the timing, then download the audio and cue files for your editor.
Add a voiceover nowAudio-only video voiceover builder
Upload a video for timing, add generated or recorded narration, then download WAV, MP3, SRT, or a cue sheet. This tool does not render a video file.
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Set original audio to 0% to replace it. Mixing depends on whether your browser can decode the video's audio track.
Project status
Load a video and add narration to begin.
No video output: import the downloaded audio into CapCut, Premiere Pro, DaVinci Resolve, Final Cut Pro, or another video editor.
This is an audio-only video voiceover maker. Your video stays in the browser as a timing reference. The downloads are WAV or MP3 audio, SRT captions, and cue files, never a rendered video.
Browser app
The builder opens in your browser. Load an MP4, MOV, or WebM file up to 200 MB and 10 minutes, and the browser reads its duration and plays it as a local timing reference. The video never leaves your device.
Free tool
The voiceover builder is free to use in the browser. Build, preview, and download the audio without paying for a separate editing step, whether the narration comes from AI voices or your own recording.
AI narration
Type or paste narration text, choose a voice, and generate speech for each clip. Cloud mode is faster, while in-browser mode keeps the narration text and generated audio on your device.
Four steps
Load the video as a local timing reference, add narration clips, preview the mix, then download the audio and cue files. Import the audio into your editor and render the final video there.
A reference video makes timing easier, but it does not need to leave your device. Place each narration clip against the picture, check the original sound level, and export one audio track that starts at the right moment. You still control the final video export in your usual editor.
Related use cases
Choose an MP4, MOV, or WebM file. The browser reads its duration locally and does not upload the video.
Generate speech from text or upload your own recordings. Set the start time, trim points, order, and volume for each clip.
Play the reference video to hear the narration in place. Keep, mute, or lower the original audio while the voiceover is playing.
Export WAV or MP3, plus SRT, CSV, and JSON timing files. Import the audio into your video editor to finish the project.
Still wondering? Get in touch →
Create a lossless narration file for editing.
Turn subtitle cues into timed spoken audio.
Plan and generate narration in sections.
Prepare short narration for vertical video.
Visual guide
An audio export guide for WAV, MP3, and production-ready speech files.
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