Reaction Video from a Voiceover

Upload a pre-recorded voiceover and a character you design lip-syncs it over your clips — zoom, annotate and cut scenes live while it records. No talking on mic, nothing uploaded.

Ready
Scenes

Scenes

1 scene

Set each clip to a moment with the timeline (type a time like 2:35), add more moments, then just tap between scenes to cut — instantly, even while recording.

Character

Design a face (upload a head, pick eyes & mouth) and it’s saved — reuse it across your faceless videos.

Size

—

Rotation

0°

Drag the character to move it, or drag the backdrop to pan. Pinch/scroll to zoom either one.

Voice source

Microphone

mic off

Mic volume

100%

Video volume

100%

Your voice drives the mouth and is recorded, then merged with the video on save. Nothing is uploaded.

Voiceover

none

Upload an mp3 or m4a — it drives the mouth and becomes the soundtrack. Reaction clips are muted (only your voiceover is heard) and loop while recording, so a short clip won’t freeze if your voiceover runs longer. Recording ends when the voiceover does.

Mouth movement

auto

Video shape

Video size

—

Guides never appear in the video.

Settings

Your character, poses, colours and shape are remembered on this device.

Your reaction

Not everyone is comfortable talking live on a microphone. Record your narration first — in one take or many, at your own pace — then upload it here. A faceless character you design lip-syncs to that voiceover while you build the video from scenes (your clips, photos or a plain colour), zoom in on the moments that matter, draw on the screen and cut between scenes live. Your voiceover is the soundtrack; the reaction clips are muted so your commentary is always clear.

It is the same editor as the <a href="/faceless-video-maker">Faceless Video Maker</a>, with the voice source set to your uploaded audio instead of a live mic. Recording stops on its own when your voiceover ends. Everything runs on a canvas in your browser — your audio, your clips and the finished video never leave your device.

How to make a reaction video from a voiceover

  1. Design your character — upload a head image or choose a style, and set the eyes and mouth.
  2. Add scenes from your videos, photos or a solid colour, and pick 9:16, 1:1 or 16:9.
  3. Upload your voiceover, press Record, then zoom, annotate and tap between scenes as it plays — it saves when the audio ends.

Frequently asked questions

How is this different from the Faceless Video Maker?

Same editor, different voice source. Here the character lip-syncs to a voiceover you upload rather than a live microphone, so you can prepare your narration in advance instead of speaking live.

What audio files can I upload?

Common voice recordings like MP3, M4A/AAC, WAV, Ogg or WebM — anything your browser can play. A recording from your phone’s voice-memo app works well.

Is my audio or video uploaded anywhere?

No. Your voiceover, your clips and the recording are processed locally on a canvas and recorded on your device. Nothing is sent to a server.

Do the reaction clips keep their own sound?

No — in voiceover mode the clips are muted so only your uploaded narration is heard. If you want the clip audio too, use the Faceless Video Maker with a live mic and auto-duck.

How long is the final video?

It matches your voiceover. Recording starts your audio from the top and stops automatically when it ends; you can also stop early.

Why is there a watermark?

Free recordings carry a small jomijo.com watermark. A one-time unlock removes it across every jomijo tool; since it’s baked into the frames, you record again after unlocking for a clean file.

Related tools

Faceless Video Maker Stickly Auto Subtitles Faceless YouTube Video Maker