All KeyPitch Tools

Free online tools to edit audio and video files: change key and pitch, adjust speed, remove vocals, add effects — right in your browser.

Every KeyPitch tool runs directly in your browser — no software to install, no account needed to try. Upload an MP3, WAV, M4A or MP4 file, preview your changes in real time, then download the result. Pick the tool that matches what you want to do with your song, backing track, karaoke file or video.

Change Key & Pitch

🎹 Key Changer Change the key of a song in semitones (±12) while keeping the original tempo. 🎶 Lower Key Changer Lower the key of a song that is too high for your voice — shift it down by semitones. 🎵 Higher Key Changer Raise the key of a song that is too low — shift it up by up to +12 semitones. 🎚️ Pitch Changer Shift the pitch of any song with a Hz slider (415.3–466.2 Hz) without changing the speed. 🎛️ Pitch Shifter Pitch shift MP3, WAV, M4A and MP4 files up or down by up to one semitone, in Hz. ⬇️ Lower Pitch Changer Lower the pitch of a track in Hz — convert 440 Hz to 432 Hz or down to baroque 415 Hz. ⬆️ Higher Pitch Changer Raise the pitch of a track in Hz — brighten a song or tune it up to 466.2 Hz. 🔁 Transpose Music Transpose MP3, MP4 or video files to another key online — preview, then download. 🎬 Transpose Video Transpose the music of a video file online without losing the picture. 🎤 Karaoke Key Changer Adapt any karaoke track to your vocal range before you sing.

Speed & Effects

⏱️ Pitch & Speed Changer Change pitch and speed independently — from ×0.5 to ×2 with precise Hz control. 🌊 Slowed + Reverb Turn any song into a slowed and reverb edit with one click, then fine-tune with sliders. 🚀 Speed Up Songs Speed up any song (nightcore style) with speed, pitch and reverb controls.

Studio, Vocals & Extension

🎧 Audio Studio The full KeyPitch studio: change key, pitch and speed, add reverb, bass boost and 8D audio, then export as MP3 or WAV. 🗣️ Vocal Remover Separate vocals from instrumental with AI — make karaoke or acapella versions from MP3, WAV, M4A and MP4 files. 🧩 Chrome Extension Transpose and pitch-shift YouTube videos in real time, right in your browser.

Guides & Comparisons

🏆 Best YouTube Transpose Extensions The 3 best browser extensions to transpose YouTube in real time, compared. 🎓 Best Tools for Vocal Teachers The tools every vocal teacher and singing coach needs in their lessons. 📚 Create Practice Tracks How to create practice tracks for singing students, in 4 simple steps.

Frequently Asked Questions

Everything you need to know about editing audio and video files online with KeyPitch.

What tools does KeyPitch offer to edit audio and video files online?

KeyPitch offers free browser-based tools to modify audio and video files: a pitch changer and pitch shifter (Hz), a key changer and transpose tool (semitones), a pitch & speed changer, a slowed + reverb maker, a speed up tool, an AI vocal remover, a complete Audio Studio with reverb, bass boost and 8D audio, plus a Chrome extension that transposes YouTube in real time. All tools support MP3, WAV, M4A and MP4 files.

How can I change the key of a song online for free?

Open the KeyPitch Key Changer, upload your MP3, WAV, M4A or MP4 file, then move the semitone slider up or down (±12 semitones). The tempo stays exactly the same. Preview the result in real time, then download your file in the new key. It's free to upload, preview and adjust.

How do I change the pitch of audio without changing the speed?

Use the KeyPitch Pitch Changer or Pitch Shifter. They use high-quality time-stretching algorithms (SoundTouch) that shift the pitch independently from the tempo — the song keeps its exact duration and speed while the pitch moves up or down, in Hz or in semitones.

Can I remove the vocals from a song to make a karaoke version?

Yes. The KeyPitch Vocal Remover uses AI source separation to split any song into two tracks: the isolated vocals (acapella) and the instrumental (karaoke version). Upload an MP3, WAV, M4A or MP4 file and download both stems. You can then change the key of the instrumental to match your voice.

How do I make a slowed and reverb or sped up version of a song?

Use the Slowed + Reverb tool to instantly apply the classic slowed aesthetic (slower speed, lower pitch, large reverb) and fine-tune each parameter with sliders. For the opposite effect, the Speed Up tool creates nightcore-style versions with faster speed and higher pitch. Both let you preview before downloading.

Can I change the pitch or key of a YouTube video in real time?

Yes, with the KeyPitch Chrome Extension. It adds a pitch and speed panel directly on YouTube so you can transpose any video by semitones in real time — no download or conversion needed. It's ideal for musicians who practice with YouTube backing tracks or tutorials.

What file formats and limits do KeyPitch tools support?

KeyPitch tools accept MP3, WAV, M4A and MP4 files up to 50 MB and 10 minutes long. Audio exports are available as MP3 or WAV; when you upload an MP4 video, the edited audio is muxed back into the video so you keep the picture. Everything runs in the browser — your files are processed quickly and never shared.

Which KeyPitch tool should I use to change a song's key or pitch?

If you think in musical keys, use the Key Changer or Transpose tool (semitone steps, ±12). If you need fine tuning in Hz — like converting 440 Hz to 432 Hz — use the Pitch Changer or Pitch Shifter. To change tempo as well, pick the Pitch & Speed Changer. To sing over an instrumental, start with the Vocal Remover. And for YouTube, install the Chrome extension.