100% Local & Private Audio Studio · Zero Servers

Edit, Trim and Transform Audio with reptarAudio

Trim songs with millisecond precision on an interactive waveform, merge tracks, record voice, and adjust speed or volume. Your audio files never leave your computer.

Start Editing Audio Explore Features

⚡ Instant Web Audio API | 🔒 100% Private Zero Uploads | 🚀 Unlimited No Account Required

All-in-One Audio Studio & Processing Tools

Trim with interactive waveform, merge tracks, apply EQ effects, record voice, and convert formats 100% locally and confidentially.

Click or drag & drop your audio file here

Supports MP3, WAV, OGG, M4A, FLAC, AAC, WEBM with no file size limits. Paste with Ctrl + V.

🔒 100% processed client-side in your browser's RAM

Loaded Track: audio.mp3

Start: 00:00.00

Selection Duration: 00:00.00

End: 00:00.00

Start Position: 0s

End Position: 100%

Volume Level (%)

Playback Speed

Fade In (1s smooth start) Fade Out (1s smooth end)

🎧

Real-Time Effect Preview

Click "Preview Effect" on any card below to listen to the effect instantly

00:00.00 / 00:00.00

🔊

Amplify / Volume Boost

Increase or reduce gain

Gain: +3 dB (140%)

🎵

Pitch / Speed Shift

Speed up, slow down or shift pitch

Speed / Pitch: 1.0x (Original)

🎚️

Fade In / Fade Out

Smooth intro and outro transitions

Fade In:

Fade Out:

✂️

Remove Silence

Auto trim start and end silence

Sensitivity Threshold:

Total: 0 tracks

🔄 Audio Format Converter

Convert your file between popular audio formats with client-side acceleration and pristine acoustic fidelity.

🎵 Input: Waiting for audio...

Select Target Audio Format:

MP3 Universal

Compatible with all players, systems and devices.

WAV Lossless

Uncompressed 16-bit PCM studio master quality.

OGG Vorbis / Opus

Open-source format for web, Linux and Android.

WEBM Opus Web

Modern high-efficiency codec for browsers and streaming.

FLAC Hi-Res

Pristine lossless bit-exact audio for audiophiles.

M4A / AAC Apple / Streaming

Standard format for iOS, Mac, podcasts and YouTube.

Sample Rate:

Audio Channels:

Bitrate (for compressed formats):

🗜️ Smart Audio Compressor

Drastically reduce audio file size without losing speech clarity or acoustic fidelity.

ESTIMATED SIZE: ~2.8 MB (-60%)

Select Compression Level:

Light High Fidelity

Maintains rich acoustic harmonics. Bitrate 256 kbps.

Savings: ~25%

Optimal Recommended

Ideal balance between music clarity and file size. Bitrate 160 kbps.

Savings: ~55% to ~65%

Strong Podcasts & Voice

Ideal for voice recordings, lectures, and audiobooks. Bitrate 96 kbps.

Savings: ~75% to ~85%

Extreme Maximum Savings

Ultra compression for WhatsApp or email sending. Bitrate 48 kbps.

Savings: ~90%

Bitrate: 160 kbps

Compression Format:

Force Mono (Single Channel) Cuts file size in half immediately by downmixing both channels.

🎙️ Voice Notes & Live Dictation

Record your voice and transcribe speech to text in real time 100% privately and locally.

0 words • 0 characters • 00:00

Language:

⚡ Automatic Dictation on Record

🎙️ Waveform visualizer active · Press "Start Recording Voice Note" REAL-TIME AUDIO MONITOR

💡

Note to transcribe: To transcribe speech to text, you need to click inside the text box and press Windows + H while speaking into your microphone.

Why Choose reptarAudio?

Digital studio quality and speed directly inside your browser.

Absolute Privacy

Your tracks and recordings never touch cloud servers. Everything is processed directly in local memory.

Interactive Waveform

Inspect soundwave peaks and valleys to perform precise, smooth, and seamless cuts.

Zero Latency

No waiting for large uploads or network transfers. Slicing and exporting finishes in seconds.

Track Concatenation

Combine audio podcasts, interview snippets, or songs into a single unified file easily.

Supported Audio Formats

Decode and process any modern track with native browser capability.

MP3

MPEG Audio

WAV

PCM Lossless

OGG

Vorbis Audio

M4A / AAC

Apple Audio

FLAC

Lossless Audio

WEBM

Opus Audio

Frequently Asked Questions

Everything you need to know about reptarAudio.

Are there any limits on audio length or track quantity? +

There are no artificial restrictions. You can load full tracks or long recordings with no file size caps, processing everything directly in device memory at peak speed.

Can I trim long recordings or voice notes? +

Yes. With native Web Audio API decoding, you can load long tracks, select start and end points accurately, and export pristine WAV slices.

Can I use reptarAudio offline without an Internet connection? +

Yes! Through our desktop application (Reptar Suite Pro Desktop Hub), you can run reptarAudio and the entire suite 100% offline without consuming bandwidth.

Support reptarAudio Development

Your voluntary donation helps us keep all audio tools 100% private, fast, and tracker-free.

$ USD

🔒 Encrypted transaction processed securely by PayPal Inc.