Vocoder Online
Turn your voice into a robot right in your browser. Record or drop a voice clip, pick a synth, and the vocoder makes it sing your words in that classic robotic sound — no sign-up, and your voice is never uploaded.
How to Make a Robot Voice
No account, no upload — record a voice and hear the robot in seconds.
Record or Drop a Voice
Click record and say a few words, or drop an existing voice clip. Clear speech gives the best robot.
Pick Your Robot
Choose synth, square, or whisper, set the pitch, and slide the clarity bands until the words sound right.
Preview & Download
Hit Apply Vocoder, preview the result, then download the robotic MP3 at the bitrate you choose.
Why Notevibes Vocoder
A real channel vocoder that runs entirely in your browser.
Record or Upload
Record straight from your mic or drop an existing voice clip. Any speech becomes the words your robot voice speaks — no beat or backing track needed.
Three Robot Carriers
A buzzy synth for the classic vocoder robot, a hollow 8-bit square, or a breathy whisper built from noise. One click swaps the whole character.
Tune the Sound
Set the pitch, slide the band count from 8 to 32 for more or less clarity, and toggle the consonant blend that makes the words readable.
Never Uploaded
Your voice is analyzed and re-synthesized locally with the Web Audio API. Nothing is uploaded or stored — the recording never leaves your device.
Preview, Then Download
Hear the vocoded result and scrub the waveform before you save. When it sounds right, download an MP3 at the bitrate you choose.
Free, Anywhere
No watermark, no sign-up, no limits, files up to 200 MB. Record and vocode on a phone, then send the result straight to your share sheet.
Your Voice Never Leaves Your Device
Every vocode runs on your own device. Your recording never touches a server — which is a stronger promise than any “we delete it later”.
No Upload
Recording and synthesis run on your device
No Account
Start vocoding immediately
No Tracking
We never hear your voice
What People Make With a Vocoder
From music hooks to game characters — all from one voice clip.
Robot & Talkbox Hooks
Layer a vocoded vocal over a beat for that classic electro robot-voice sound
Game & Stream Characters
Give a droid, AI, or alien character a synthetic voice for your game or stream
Sci-Fi Intros & Idents
Make a robotic announcer or computer-voice intro for a video or podcast
Robot Voiceovers
Turn a plain narration into a machine voice for skits, memes, and explainers
Sound Design
Process speech into a synth texture for music, trailers, or ambient beds
Voice Effects for Fun
Record a sentence and hear yourself as a singing robot in seconds
The Robot Voice, From Your Own Voice
The vocoded robot voice is one of the most recognisable sounds in music and sci-fi — and one of the most annoying to make. Real vocoder plugins want a carrier synth patched into a sidechain, a modulator routed just so, and a manual you have to read first. Online tools usually want you to upload your voice and wait. This page skips all of it: record or drop a voice, click a carrier, and hear yourself as a singing robot in seconds, entirely in your browser.
How it turns speech into a robot
A vocoder reads the moving shape of your voice — which frequencies are loud, moment to moment — and stamps that shape onto a synth tone. The synth carries the pitch and character; your voice carries the words. Because the carrier is generated inside the tool, you don’t need a beat or a backing track: just a clear voice clip and one of three carriers — a buzzy synth, a hollow 8-bit square, or a breathy whisper made of noise.
Clear words, not mush
The usual complaint about robot voices is that you can’t understand them. Two controls fix that: the band count, which you slide from 8 up to 32 for more detail, and a clarity blend that folds your voice’s consonants — the s, t, and sh sounds — back into the result so the words stay readable. You preview and scrub the vocoded take before saving, then download an MP3 at whatever bitrate you pick, from 64 to 320 kbps.
Private and free, because it runs on your machine
Your recording is analyzed and re-synthesized in your own browser — it never touches a server. That’s why there’s nothing to charge for: no watermark, no sign-up, no cap on how many clips you run, files up to 200 MB. And because a vocoder needs a live mic, keeping everything local means your voice stays yours.
Other ways to change a voice
A vocoder is one specific sound. If you want to type a robot voice instead of recording one, the robot voice generator speaks any text. For chipmunk, deep, alien, and a dozen other characters, use the voice changer. And if you want to pitch-correct a sung vocal to that hard-tuned sound, that’s autotune online.
When one effect isn’t enough
This page does one thing well. When you want to layer the vocoded vocal over a beat, add reverb, and mix several tracks, open the file in the online audio editor — record, process, and export in one place.
Need More Than a Vocoder?
The full Notevibes editor lets you record, layer the vocoded vocal over a beat, add reverb and effects, mix multiple tracks, and export to MP3 or WAV — all in your browser.
Free to try · No credit card required
Related Audio Tools
More free AI audio tools from Notevibes — same engine, no sign-up.
Voice Changer
Chipmunk, helium, deep, giant, or demon voice effects.
Voice Recorder
Record audio from your microphone in the browser.
Vocal Remover
AI-extract the instrumental and acapella from any song.
Audio Speed Changer
Speed up or slow down audio from 0.5x to 2x.
Audio Reverser
Play any audio file backwards.
Online Audio Editor
Multi-track browser editor with every tool built in.
Vocoder FAQ
What exactly is a vocoder?
A vocoder makes one sound "speak" through another. It reads the moving shape of your voice — which frequencies are loud moment to moment — and stamps that onto a synth tone. The synth then sings your words in its own robotic pitch: the classic talkbox / robot-vocal sound.
Do I need to upload a song or beat?
No. The carrier tone is generated inside the tool. You only provide a voice — record it with your mic or drop a clip — and the vocoder builds the robotic sound from the synth, square, or whisper carrier you pick.
Why does my robot voice sound hard to understand?
Intelligibility comes from the band count and the clarity toggle. Slide the bands up toward 32 for clearer words, and keep "Add clarity" on — it blends your voice's high-frequency consonants (s, t, sh) back in, which is what makes the words readable.
What's the difference between the three robot voices?
Synth is a buzzy sawtooth — the classic vocoder robot. Square is hollow and 8-bit, chiptune-like. Whisper uses noise instead of a tone for a breathy, unpitched robot. Synth and Square follow the pitch selector; Whisper has no pitch.
Is my voice uploaded to a server?
No. Everything runs in your browser with the Web Audio API. Your recording or file never leaves your device — nothing is uploaded, stored, or analyzed on a server.
What format do I get back?
The vocoded result downloads as an MP3 at the bitrate you choose, from 64 to 320 kbps — a universal format that plays everywhere. On mobile you can share it straight to your native share sheet.
Is the vocoder free?
Yes — completely. No sign-up, no watermark, and no limit on how many clips you process. Uploaded files can be up to 200 MB.