Free Online AI Voice Changer

No login required. Upload audio or record online, choose a voice from the library or use your own voice sample, and convert up to 6 minutes of speech while aiming to preserve the original words, tone, pacing, and emotion.

  • Upload audio or record online
  • Choose a library voice or add a voice sample
  • Aim to preserve tone and pacing
  • Up to 6 minutes per conversion
1

Add Source Audio

Upload a recording or make one in your browser.

Each conversion supports up to 6 minutes of source audio. For longer audio files, select a shorter segment. Videos over 6 minutes must be shortened before upload.
3

Conversion Results

Preview, compare, and download your converted audio.

No conversion results yet

Prepare source audio and a target voice to view the result here.

  1. 1
    Prepare source audio Add Source Audio

    Upload audio or record in your browser, then choose the speech to convert.

  2. 2
    Choose a Target Voice

    Choose a voice from the library or provide an authorized target voice sample.

  3. 3
    Convert and Review

    Compare the converted audio with the original and download it when you are satisfied.

2

Choose a Target Voice

Decide which voice to use and confirm the output settings.

Choose a Target Voice Source

Voice Library

Choose an AI Voice

Loading voice library...

KIKIVOICE · AI Voice Changer

Keep Your Delivery and Change the Voice

Want a new voice for a video narration or a character? Start with a recording you have already made, preview the converted voice, and download it when you are happy with the result.

Start with a real recording
Keep the original words
Preview before downloading
Change the voice in recorded audio
What Is KikiVoice AI Voice Changer?

What Is KikiVoice AI Voice Changer?

An AI voice changer turns recorded speech into a voice you choose. For example, you can turn your own story narration into a warm male voice or try different voices for the same character line.

Add the Source Audio whose words and timing you want to use, then choose a Target Voice. The model uses your recording’s pacing and expression as guides to generate converted audio. Pick a voice from the library or add a voice sample you are authorized to use.

Upload or record Choose a target voice The recording supplies the words Record first, then convert
Source audio
Upload or record
Target voice
Voice library or an authorized voice sample
+
KikiVoice AI Voice Changer model
KIKI AI VOICE CHANGER MODEL
Original delivery + Target voice
Converted audio
The original speech in a new voice
The model aims to retain tone and pacing. Preview the converted audio to check the result.

How the AI Voice Changer works: The model uses the words, pacing, and expression in your Source Audio as guides, then generates converted audio in your chosen Target Voice. Start with clear speech, and preview the result for pronunciation and pauses.

Voice Examples

Listen to AI Voice Changer Examples

Compare each original recording with its converted audio to hear how different Target Voices change the sound of the same passage.

Original

Maya

Scene: Product welcome

English
Converted

Warm Narrator

Target voice: Deep, warm, approachable

Original

Jordan

Scene: Late-night mystery

English
Converted

Professional Storyteller

Target voice: Soft, layered storytelling

Original

Leo

Scene: Calm tutorial

Spanish
Converted

Clear Educator

Target voice: Bright, crisp, patient

Original

Alex

Scene: Urgent game action

French
Converted

Action Adventure

Target voice: Firm, powerful, urgent

Original

Robin

Scene: Relaxed video chat

German
Converted

Studio Voice

Target voice: Clean, transparent, natural

Original

Casey

Scene: Energetic ad

Brazilian Portuguese
Converted

Energetic Announcer

Target voice: Projected, rhythmic, enthusiastic

Original

Joon

Scene: Stealth game whisper

Korean
Converted

Silver Mentor

Target voice: Low, slightly husky, reassuring

Original

Aiko

Scene: Morning monologue

Japanese
Converted

Bright Presenter

Target voice: Clear, gentle, hopeful

Original

Uncle Chen

Scene: A birthday surprise for a daughter

Chinese
Converted

Warm Baritone

Target voice: Low, warm, steady male voice

These demo samples are AI-generated solely to show how KikiVoice AI Voice Changer works. They do not represent real people or imply endorsement by any person or brand.

Quick Guide

How to Use an AI Voice Changer in 3 Steps

Start with Source Audio, choose a Target Voice, then generate and preview converted audio. You can do it all in your browser.

Step 01 Input

Upload or Record Audio

Upload a recording or record one in your browser. Each conversion supports up to 6 minutes of Source Audio. If an audio file is longer, select the section you want to convert.

  • Existing audio: Check that the file plays correctly and contains the complete recording
  • Record here: Allow microphone access and select the correct input device
  • Long recording: For longer audio files, select and confirm a segment of up to 6 minutes

For more consistent results, use audio recorded in a quiet space with little echo, no background music, and a moderate volume.

Step 02 Choose a Voice

Choose a Target Voice

Preview a voice in the library, or upload or record a Target Voice sample you are authorized to use. You can select a short segment yourself; longer samples can be processed automatically.

Add a Custom Target Voice Upload a target voice sample Select a clear reference segment
Or
Choose from the Voice Library Preview voices in the library Listen before choosing

Preview the target voice before converting to avoid unnecessary attempts.

Step 03 Output

Generate, Compare, and Download

Start the conversion and wait for it to finish. Then switch between the original and converted audio to hear the difference. Download the result you like, or try another voice.

  • Check pronunciation, pauses, and the start and end of each segment
  • Switch between the original and converted versions of the same words
  • For video, check audio and picture sync after downloading

Listen from start to finish before downloading and check for missing words, mispronunciations, or unnatural pauses.

Check Your Recording Before You Convert

A few quick checks can help you get a clearer result.

One Speaker Separate or trim clips with multiple speakers
Steady Volume Avoid audio that is too quiet or distorted by high volume
Minimal Background Music Use clean vocal audio when possible
Low Noise and Echo A quiet space helps reduce inconsistent results
Clear Speech Mumbled or overlapping speech may affect the result
Permission to Use the Audio Upload and convert only audio you are authorized to use
Why KikiVoice

Why Choose KikiVoice AI Voice Changer?

Record once and try different Target Voices without reading the whole script again. KikiVoice lets you upload or record Source Audio, convert it, and compare the result in your browser.

Change the Voice in a Recording You Already Have

KikiVoice uses the words, rhythm, pauses, emphasis, and emotion in the original recording to generate speech in a new target voice.

  • Start with a recording you already have
  • Use the original words and delivery as a guide

Made for Converting Recorded Audio

Convert recorded narration, dialogue, or spoken content into a new target voice. Preview, retry, and download after generation.

  • Useful for videos, podcasts, and character dialogue
  • Designed for recordings rather than live streams, calls, or real-time game chat

Use a Library Voice or Your Own

Start with the voice library without providing a sample, or upload or record an authorized sample of a voice you want to use.

  • Preview voice examples before choosing
  • Try voices for different characters and moods

Compare the Original and Converted Audio

Switch between the original and converted audio at the same playback position to hear changes in voice, pronunciation, pauses, and emotion.

  • Switch quickly between both versions
  • Download the converted result when satisfied

Complete the Workflow in Your Browser

Upload or record Source Audio, choose a Target Voice, generate converted audio, preview it, and download the result in your browser.

  • No extra software download needed
  • Choose another voice and try again if needed

Use Voices Responsibly

Upload audio you are authorized to use and choose a target voice that you have permission to use or that the platform makes available.

  • Respect voice owners and content licenses
  • Create lawful and authentic content
Source AudioStart with Source AudioUpload an existing recording or record directly in your browser.
Target VoiceChoose a Target VoiceChoose from the voice library or use a custom voice.
CompareHear the DifferenceSwitch between the original and converted audio at the same playback position.
DownloadDownload the Result You LikeSave the audio for videos, podcasts, or other content.
How the Model Works

How the KIKI AI Voice Changer Model Works

KIKI AI Voice Changer Model is the AI model KikiVoice uses to change a voice. It follows what was said and how it was said in the original recording, then combines that delivery with your chosen target voice to generate new speech. You provide the recording and the voice; the AI handles the conversion.

AI Voice Changer KIKI AI Voice
Changer Model
Source Recording

What Was Said

The words to be converted come from the original recording. Upload or record a spoken passage to provide the content.

Delivery

How It Was Said

The original pacing, pauses, emphasis, and emotion guide the new speech to preserve the feel of your delivery.

Target Voice

Which Voice to Use

Choose a Target Voice from the library or add a voice sample you are authorized to use. The sample does not need to say the same words as your Source Audio.

Generated Result

Hear Your Recording in a New Voice

The model combines your Source Audio and Target Voice to generate converted audio. Compare it with the original to see whether the voice and delivery work for your project.

For example, turn your recorded story narration into a warm male voice. The story still comes from the original recording, while the model aims to preserve its tone and pauses.

AI Voice Changer Use Cases

What Can You Create with KikiVoice AI Voice Changer?

From short video narration to course lessons, record the content first and then find the right voice. For longer projects, split the audio into segments of up to 6 minutes and convert them separately.

Short Videos and Channel Narration

Record narration for your video, convert it to a target voice, then check the audio against the visuals and subtitle timing in your editor.

Short videosRecorded narrationVisual timing
Spoken recordingVoiceover audio for editing

Video Commentary and Documentaries

Convert existing commentary into a different Target Voice while using the original pacing and pauses as a guide.

Long videosDocumentary commentaryNarration
Commentary recordingVoiceover option for the final edit

Games, Animation, and Virtual Characters

Record dialogue with the character’s pacing and emotion, then try different target voices to find a fit for game prototypes, animated shorts, or virtual characters.

GamesAnimationVirtual characters
Character dialogueCharacter voice options

Podcasts, Audiobooks, and Audio Stories

Convert narration or character passages into different Target Voices, using the original storytelling rhythm as a guide and helping listeners distinguish speakers.

PodcastsAudiobooksAudio drama
Reading or dialogueNarrator and character voices

Courses and Training Content

Convert an authorized lesson recording into a clear instructional voice, then check how the converted audio lines up with each step.

CoursesTrainingExplanations
Lesson recordingCourse narration audio

Advertising, Products, and Brand Voices

Use the same recorded line to compare how different Target Voices sound: professional, warm, energetic, or playful. Choose one for ads, product introductions, show openings, or recurring narration.

AdvertisingProduct introductionsBrand voice
Spoken recordingBrand voice options

Voices for Translated Recordings

Record the translated words in the language you need, then convert that recording to a suitable Target Voice. AI Voice Changer changes the voice; it does not translate the words.

LocalizationTarget-language recordingNo automatic translation
Target-language recordingNew target voice

Voice Casting Previews and Pitches

Before production, record a short line once and convert it with different Target Voices so your team can compare options for characters, narration, or a brand voice.

Character previewsTeam reviewVoice direction
Script recordingVoice options to preview
Before You Start

Source Audio and Target Voice: What You Need

Your Source Audio contains the words you want to convert. Choose a Target Voice from the library or add a voice sample you are authorized to use.

Source Audio: The Words to Convert

Upload existing audio or record narration or dialogue in your browser. Each conversion supports up to 6 minutes of Source Audio; shorter files are converted in full unless you choose a segment.

  • Listen first to make sure the words are complete and the voice is clear.
  • For audio files over 6 minutes, select and confirm a shorter segment before uploading.
  • If you cancel trimming, you can choose another file; the audio will not be cut automatically.

Custom Target Voice: The Sound You Want

A library voice needs no sample. To add a custom Target Voice, upload or record a clear sample; you can choose a short segment yourself or let the service process a longer file.

  • Keep only a clear segment with one speaker.
  • The sample does not need to say the same words as the source recording.
  • Use your own voice or a voice you are authorized to use.
8 Core Features

From Recording to Converted Audio in One Workflow

Upload audio or record in your browser, choose a Target Voice, generate converted audio, compare it with the original, and download it in one workflow.

01Add Audio

Upload Audio or Record in Your Browser

Upload an existing spoken passage, dialogue, or narration. You can also record and play back a new take in your browser.

Preview the source audio before converting
02Add Audio

Prepare Clear Audio

Before you convert, check the file format and duration, then listen for noise, distortion, and overlapping voices.

See suggestions when your audio needs adjustments
03Choose a Voice

Preview Before Choosing a Target Voice

Browse voice categories and listen to samples before choosing a Target Voice. A short test conversion can help you decide.

Hear the voice before submitting a conversion
04Choose a Voice

Choose from the Voice Library

Find voices for video narration, character dialogue, podcasts, courses, and ads. Preview examples to decide which voice suits your content.

Browse categories and search the voice library
05Convert the Voice

Let Your Original Delivery Guide the New Voice

KikiVoice uses your Source Audio as a guide and aims to retain its words, pacing, pauses, emphasis, and emotion when generating converted audio in a new voice.

Use a new voice with the original delivery as a guide
06Convert the Voice

Adjust and Generate Again

Check processing status. If the result is not right, keep the source audio and try again with another target voice or improved input.

Try again without preparing everything from scratch
07Review the Result

Compare Original and Converted Audio

Switch between source and converted audio at the same playback position to compare voice quality, pronunciation, pauses, emotion, and transitions.

Hear the differences before deciding whether to regenerate
08Download and Use

Download After You Preview

Listen to the full result before downloading the audio for videos, character voices, podcasts, ads, or other content.

Commercial projects are supported; confirm the required rights before use
Commercial Use & Responsible Creation

Commercial Use Starts with the Right Permissions

Whether you make videos, ads, or courses, confirm that you have permission to use the source recording, target voice, and other materials. Get consent before using someone else’s voice, and do not impersonate or deceive others with synthetic audio.

View Terms of Service

Source Audio: Check Your Rights

Upload or record only audio that you created, are authorized to use, or may lawfully process. Owning an audio file does not automatically grant rights to imitate or commercially use the voice of someone in it.

Target Voice: Check the Scope of Use

For a platform voice, check its permitted uses. If you add someone else’s voice as a Target Voice, obtain that adult speaker’s explicit written consent for the upload, voice model, synthetic speech, and intended use of the result.

Commercial Use: Check Before Downloading

Listen to the full result, then confirm you have the necessary rights for the words, music, voices, and intended publishing context before downloading and using the converted audio.

Appropriate Uses

  • Use converted audio in videos, ads, podcasts, or games when you have the required rights
  • Use Source Audio you have permission to upload and convert, and Target Voice samples you have the required rights and consent to use
  • Keep records of permissions and material sources for commercial projects

Uses to Avoid

  • Assume a free or commercial result gives you rights to someone else’s voice or content
  • Imitate or impersonate a real person without permission from the person or rights holder
  • Use synthetic audio to deceive, harass, or bypass identity verification
Frequently Asked Questions

AI Voice Changer FAQs

Find answers about recordings, voice samples, results, credits, downloads, and usage rights.

Getting Started

What is an AI voice changer?

An AI voice changer transforms recorded speech into a different voice, using the original words and delivery as a guide. For example, you can record a story narration and then give it a warm male voice. The words come from your original recording, so you do not need to type them again.

What can exported audio be used for? Is commercial use allowed, and is attribution required?

Audio generated with either free or paid services can be used for lawful personal use, content creation, client projects, and commercial purposes, provided you have the legal rights to use the relevant materials and voices. If you generate audio using the free service and publicly publish or distribute it, include Generated with KikiVoice or kikivoice.ai in the work's description, notes, or credits. If the platform supports clickable links, we recommend also including a link to the kikivoice.ai website. Audio generated using paid services may be used without attribution. Specific conditions are governed by the KikiVoice Terms of Service.

How do I get started?

Upload a recording or record directly in your browser. Then preview it, choose the voice you want, and start the conversion. When it is ready, listen to and download the result. For your first try, use a short, clear recording of one person speaking.

What is the difference between source audio and a target voice?

Source audio is the recording you want to change. It determines what is said and how it is spoken. The target voice determines whose voice you hear in the result. You can choose a voice from the library or upload or record a voice sample you have permission to use. The two recordings do not need to contain the same words.

How is this different from text-to-speech, voice cloning, and voice design?

Use this AI voice changer when you already have a recording and want to change its voice. Use text-to-speech when you have a script and want it read aloud. Use voice cloning when you want your own voice to speak new text. Use voice design when you want to create a voice from a written description.

Do I need an account, a credit card, or software?

You can try it for free in your browser without registering, signing in, linking a credit card, or installing software. To record on the page, you need to allow your browser to access your microphone.

How do I choose a voice?

Think about who will hear the content. A warm voice may suit a story, a clear and steady voice may suit a tutorial, and a more expressive voice may suit character dialogue. Listen to voice library samples, then test your favorites with a short recording of your own.

Preparing Recordings and Voice Samples

How long can one recording be?

Each conversion supports up to 6 minutes of source audio. A recording within that limit is used in full; it is not automatically cut down to a few seconds. For longer content, you can convert separate sections and combine them later in an editor.

Can I trim a 10-minute recording before converting it?

Yes, for supported audio files within the upload size limit. If an audio recording is longer than 6 minutes, choose and preview a section of no more than 6 minutes before uploading. Videos longer than 6 minutes cannot be trimmed on this page; export a shorter audio clip or choose another file.

What files can I upload, and what if an upload fails?

The upload dialog lists supported formats and file size limits. First check that the file plays correctly and meets those requirements. Video files also need a clear speech track. If a video cannot be uploaded directly, export its audio in an editor. If the upload still fails, check your connection or export the file again.

What do I need to use my own voice?

In the Custom Target Voice tab, upload or record a clear sample of one speaker. You can select a 3–15-second segment yourself; longer samples can also be processed automatically. The sample supplies the voice, while Source Audio supplies the words to convert.

What makes a good recording? Can it contain music or multiple speakers?

Use a recording of one person speaking in a quiet space, at a comfortable volume, with little echo. Overlapping speakers, loud background music, or distorted audio can make results less reliable. Remove the music or separate speakers into individual clips before converting.

Can I record on my phone? Why is my microphone silent?

You can record with a phone or computer browser that supports web recording. If there is no sound, check microphone permissions for both the site and your device, confirm the correct input device is selected, and make sure the microphone is not muted. Record a short clip and play it back before continuing.

Results and Processing Time

Will the words, emotion, and duration stay the same?

The AI uses the original words, speaking pace, pauses, and emotion as references to preserve the performance where possible. Pronunciation and the timing of some parts may still differ, so listen to the entire result. For video voiceovers, also check that the audio stays in sync with the picture.

Why does the result contain mistakes or sound unnatural?

Check the original recording for unclear words, noise, echo, or overlapping voices. You can rerecord the problem sentence more clearly or choose a target voice closer to the original tone and vocal range. Compare short clips first, then process longer content once you find a combination that works.

Can it change the spoken language?

This tool changes how a voice sounds; it does not translate speech. To create audio in another language, prepare Source Audio in that language and choose a suitable Target Voice. Preview a short result to check the pronunciation.

Can I change my voice in real time during streams, games, or calls?

No. This page processes recorded audio: upload or record a clip, then wait for the converted result. It does not change your live microphone audio during streams, meetings, game chats, or phone calls.

Can I use it to cover a song?

This page is mainly for spoken recordings such as narration, presentations, and character dialogue. Songs also involve melody, sustained notes, and accompaniment, so speech voice changing cannot guarantee reliable singing results. Start with a clear spoken recording to try the feature.

How long does conversion take?

Processing time depends on the recording length and the current queue. Check the task progress after submitting. Avoid submitting the same task repeatedly while you wait. If the page shows a failure, check the input as prompted before trying again.

Credits, Downloads, and Usage Rights

Is KikiVoice free, and are there usage limits?

KikiVoice provides free credits to try its core features without a credit card. Free credits reset weekly, and conversions use credits, so use is not unlimited. Check the page for your remaining balance and the credit cost of the current task.

Can I use audio generated for free in commercial projects?

Yes, you can use generated audio in commercial projects, subject to the KikiVoice Terms of Service. Before uploading a source recording or custom target voice, make sure you have all necessary rights and consents for the upload, conversion, and intended commercial use. Free access does not grant rights to someone else's voice or materials.

Can I upload someone else's voice or imitate a celebrity?

Before uploading someone else's recording or voice sample, make sure you have the necessary rights and that the adult speaker has given explicit written consent for the upload, voice model, synthetic speech, and intended use of the result. Do not upload a minor's voice. A public or political figure's voice also requires explicit written consent and compliance with applicable law. Never use the result to deceive, impersonate, fabricate an endorsement, or harass anyone.

How are my uploaded recordings handled?

Read the KikiVoice Privacy Policy before using the service for details about audio processing and deletion. Upload only content you have the right to process, and keep your original files. If a recording contains client information or other sensitive content, confirm that you are allowed to submit it to an online service.

Can I download audio or video?

This page mainly generates converted audio. The result area shows the available download formats. To use it in a video, download the audio, replace the original sound in an editor, and check synchronization. Uploading a video does not mean you will receive a fully edited video.

Can I recover my result after refreshing the page?

Download results you want to keep to your device promptly. Page history is not intended for long-term storage; check the page for how long files and records remain available. For a lasting archive, save the original recording, the target voice name, and the downloaded result together.

Start with a Recording

Give Your Recording a New Voice

Choose a short, clear recording, preview a target voice you like, and start converting.

Try AI Voice Changer
Only have a script? Try text-to-speech Want your own voice to read new lines? Try voice cloning Want to create a voice? Try voice design