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Privacy Policy

Last updated: April 15, 2026

The short version

Most of our tools run entirely in your browser. Your audio files are never uploaded for those tools — they stay on your device. A handful of tools require server-side processing, and we tell you clearly on the page before you upload anything.

Client-side tools (no upload)

These tools process audio entirely in your browser using the Web Audio API. Your files never leave your device.

  • Audio Cutter — Trim MP3 and WAV files by selecting a start and end point on the waveform.
  • Audio Merger — Combine multiple audio files into one with optional crossfade between tracks.
  • Fade In/Out — Apply smooth fade-in and fade-out effects to your audio files.
  • Volume Normalizer — Adjust audio volume to a target peak or RMS level. Simple, fast, client-side.
  • Speed & Pitch — Change playback speed or shift pitch independently. Great for practice and remixing.
  • Reverse Audio — Reverse any audio file instantly in your browser.
  • Silence Remover — Detect and remove silent sections from audio. Set your own threshold and minimum duration.
  • Audio Recorder — Record audio from your microphone directly in the browser. Export as WebM or WAV.
  • ID3 Tag Editor — Read and edit MP3 metadata — title, artist, album, year, genre, and track number.
  • BPM Detector — Detect the tempo of any audio file using onset detection. Shows BPM with confidence.
  • Waveform Viewer — Visualize audio waveforms with zoom and pan. Click to seek. Great for planning edits.
  • Equalizer — Apply EQ bands to boost or cut frequencies. Preset profiles for voice, music, and bass.
  • Stereo to Mono — Flatten stereo audio to mono. Cuts file size in half and fixes single-speaker playback.
  • Vocal Remover — Subtract the center channel to thin or remove vocals — karaoke from any stereo track.
  • Audio Gain — Boost or reduce volume by a precise amount in decibels. Simple and fast.
  • Ringtone Maker — Cut a 15–40 second ringtone from any song with a smooth fade-out. MP3 output.
  • Delay / Echo — Add delay and echo effects. Control the time, feedback, and wet/dry mix.
  • Tone Generator — Generate sine, square, triangle, or sawtooth test tones at any frequency.
  • Noise Generator — Generate white, pink, or brown noise for sleep, focus, and speaker calibration.

Server-side tools (upload required)

These tools upload your file to our server for processing. The server uses ffmpeg to handle formats and operations the browser can't perform natively. Each of these tool pages shows a prominent disclosure before you upload.

  • Audio Compressor — Reduce file size by re-encoding at a lower bitrate. Choose from 32 to 320 kbps.
  • Format Converter — Convert between MP3, WAV, FLAC, OGG, AAC, M4A, and Opus.
  • Video to Audio — Extract the audio track from MP4, MOV, WebM, and MKV video files.
  • Loudness Normalizer — EBU R128 loudness normalization with LUFS targeting. For podcasts, streaming, and broadcast.
  • Server-Side Trimmer — Trim audio formats the browser can't decode — FLAC, M4A, Opus, and more.
  • Bulk MP3 Converter — Convert up to 50 files to MP3 at once. Downloads as a single ZIP.

Server-side file handling

When you use a server-side tool, your file is uploaded over HTTPS to our processing server. Here's what happens:

  1. Your file is received and temporarily stored in memory.
  2. The server processes it (conversion, compression, normalization, trimming, or extraction).
  3. The processed result is returned to your browser.
  4. Both the original and processed files are deleted immediately after the response is sent. We do not retain copies.

We do not inspect, analyze, listen to, or store the content of your files beyond the time needed to process them.

Cookies and analytics

We use a cookie consent banner. Until you opt in, no analytics scripts or ad-related cookies are set.

If you consent, we may load:

  • Vercel Analytics — a cookieless, privacy-focused analytics service that does not set cookies and does not collect personal data.
  • Google AdSense — for displaying ads below the tool interface. AdSense may set its own cookies. See Google's ad technology policies for details.

You can change your consent choice at any time using the button below.

Manage your consent

Click the button below to reset your cookie consent preference. This clears your stored choice and the consent banner will appear again on the next page load.

Data we collect

We do not collect:

  • Names, email addresses, or account information (we have no accounts)
  • Audio file contents beyond temporary server-side processing
  • Browsing history or cross-site tracking data

Vercel Analytics (always on, cookieless) gives us aggregate page view counts and referrer data — no individual user profiles.

Third-party services

MakeMySounds is hosted on Vercel. Server-side audio processing runs on our own infrastructure. We do not share your files with any third party.

Changes to this policy

If we change this policy, we'll update the "last updated" date at the top. For significant changes, we'll show a notice on the site.

Contact

Questions about privacy? Reach out at [email protected] or open an issue on GitHub.

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