Change Your Voice, Free — No Upload, No App
Turn your voice into chipmunk, deep, robot or radio — in your browser, nothing uploaded.
Select an audio or video file
MP3, WAV, M4A, MP4, MOV, WebM — transcribed in your browser with Whisper
Click to choose, or drop a file here
About the voice changer
Chipmunk and Deep Voice shift pitch up or down without changing how fast the clip plays: the audio is first resampled (which moves pitch and speed together), then time-stretched back to the original duration with the same pitch-preserving technique Change Audio Speed's "keep pitch" option uses — so the length stays the same but the voice sounds higher or lower. Robot multiplies the signal against a low-frequency carrier tone and quantizes it to a handful of levels, the classic cheap ring-modulator effect. Radio narrows the audio to the telephone/AM range with a band-pass filter and adds light soft-clip distortion.
Every preset previews instantly after a tap, so you can flip between the four before deciding — the point of a voice changer is trying a few, not committing to the first one. All four presets run entirely on your device through the Web Audio API; nothing is uploaded, and there's no limit on how many times you can use it.
Supported files
Accepts MP3, WAV, M4A, AAC, FLAC, OGG, or a video file (its audio track is used). Produces an MP3 or WAV.
Is my file uploaded?
No. Every voice is generated entirely in your browser.
How to Voice Changer
- 1
Add your audio
Drop in an audio file, or a video — its audio track is read, in your browser, never uploaded.
- 2
Pick a voice
Tap Chipmunk, Deep Voice, Robot or Radio — it previews instantly, so flip between them until one sounds right.
- 3
Download
Save the result as MP3 or WAV.
Related PDF tools
Voice Changer — frequently asked questions
Is my file uploaded?+
No. Every voice is generated entirely in your browser — nothing is sent to a server, unlike most free voice changers.
What are the four voices?+
Chipmunk and Deep Voice shift pitch up or down without changing speed. Robot rings the audio against a low carrier tone with a bit-crushed texture. Radio band-limits it to the telephone/AM range with light distortion.
Does it sound perfectly natural?+
No, and it's not meant to — these are fun effects. Chipmunk and Deep Voice can pick up a mild warble at strong settings (the same pitch-preserving time-stretch technique used by Change Audio Speed's "keep pitch" option); Robot and Radio are deliberately processed.
What format do I get?+
MP3 or WAV, your choice.
Do you upload my files to a server?+
No — every tool here processes your files entirely on your device, and nothing is uploaded to a server. The only exception is the AI tools, which send the extracted text (not the file) to Claude to do their work.
Is there a file size limit?+
There's no artificial limit we impose, but since processing happens in your browser, very large files (500+ MB or 1,000+ pages) are limited by your device's memory rather than by us.
Advertisement
Advertisement