Tools/Speed Changer/DJs
Speed Changer for DJs
Change playback speed without affecting pitch. Tuned for djs and turntablists — runs entirely in your browser, no signup, no upload.
Loudness target
-10 LUFS
True peak
-1 dBTP
Output format
WAV
Bitrate / depth
16-bit
Why djs use this
Tracks at wrong tempo, mismatched keys, mixed formats in library
A DJ library is only as good as its consistency. Every track needs to be in a DJ-friendly format (WAV or MP3 at 320 kbps), have its key and BPM tagged, and sit at a normalized loudness so transitions feel level. Browser tools fill the gap when you can't justify a desktop conversion app for a few new tracks.
For djs and turntablists, the typical workflow is: Source → analyze → convert → load into Rekordbox/Serato/Traktor. The Speed Changer fits in that chain by handling change playback speed without affecting pitch. — without leaving the browser, without uploading the file, and without a watermark.
Recommended settings
The right config for djs and turntablists
| Setting | Recommended | Why |
|---|---|---|
| Format | WAV or MP3 320 kbps | Compatible with Rekordbox, Serato, Traktor, VirtualDJ |
| Loudness target | -10 LUFS (club) | Club PA systems run hot — match library to typical CDJ output |
| Sample rate | 44.1 kHz | DJ hardware and software all standardize here |
Where this fits in your workflow
The djs and turntablists workflow
- 01Source→
- 02analyze→
- 03convert→
- 04load into Rekordbox/Serato/Traktor
More for djs
Other tools djs and turntablists use
MP3 to WAV
Convert MP3 to 16- or 24-bit lossless WAV in seconds.
Open →MP3 to FLAC
Re-encode MP3 audio into a lossless FLAC container.
Open →Batch Audio Converter
Convert dozens of files between formats in one go.
Open →Pitch Shifter
Shift pitch up or down without changing tempo.
Open →Fade In / Fade Out
Add smooth fade-ins and fade-outs to your audio.
Open →Vocal Remover
Isolate vocals or extract the instrumental from any track.
Open →Speed Changer for everyone
Other ways to use the Speed Changer
DJs FAQ
WAV or MP3 for DJ libraries?
WAV gives you the cleanest audio and works with every DJ app. MP3 320 kbps is functionally identical for live use and quarter the size. Most pro DJs use a mix — WAV for cuts they actually drop, MP3 for the bench.
Why does key matching matter?
Tracks in compatible keys (same key, relative minor/major, or perfect fifth) blend without dissonance during transitions. Most DJ software detects key automatically; pre-checking with a key finder lets you plan setlists before loading.
Upload a track to
instantly master
Choose a file or drag it here
Supports WAV · FLAC · MP3 · M4A · AIFF