Free Audio Tools
Tools we're tinkering with and sharing, really free, no catch: an AI text to speech generator, a song key and BPM finder, an audio converter, a slowed + reverb maker, a nightcore maker, a pitch and speed changer, an audio recorder, a batch renamer, and a MIDI melody generator. They run in your browser on open-source engines (essentia.js, ffmpeg.wasm, Kokoro, SoundTouchJS, jsmediatags, JSZip), credited below. We don't train on your files, we don't sell your data, and nothing ever leaves your browser. They're not features of the Xport Studio app; they're just things we built and liked. If one's useful to you, tell us, we may add more.
Text to Speech
Type anything, pick from 15 AI voices, download the WAV. No sign-up, no watermark, and the model runs on your own device.
Key & BPM Finder
Drop a track to detect its key, Camelot code, and BPM, or tap the tempo by ear.
Audio Converter
Convert MP3, WAV, M4A, FLAC, OGG, AIFF, and OPUS on your device with FFmpeg in your browser. No limits.
Audio Cutter
Trim any audio to the section you want. Lossless cut or sample-accurate re-encode, all in your browser.
Audio Joiner
Merge several files into one track, in your order. Mixed formats are aligned automatically. Nothing uploaded.
Audio Screen Recorder
Record any tab, app, or your whole system straight to a clean WAV. Great for sampling.
Pitch Changer / Varispeed
Varispeed, shift the key while keeping speed, or change tempo without the chipmunk. Export WAV.
Batch Renamer
Rename a messy library by artist, title, key, and BPM with a template, download as a zip.
MIDI Melody Generator
Generate melodies in any key or scale, hear them instantly, and export a MIDI file for your DAW.
Slowed + Reverb Maker
Turn any song into a slowed + reverb edit with live preview, then export a clean WAV.
Nightcore Maker
Speed up and pitch up any track into a nightcore or sped-up edit, preview live, export WAV.
Stem Supply
Mute the vocals, drums, or music on any YouTube video while it plays. On-device AI, no uploads, free.
More on the way
We're adding tools regularly. Got a request? Tell us.
Built on open source
These tools are built on great open-source projects. Big thanks to the people behind them, go give them a star:
Who makes these?
We're the small team behind Xport Studio, a private, fully offline app for AI vocals, stems, mastering, and more. These free tools are side experiments we wanted to share. No upsell, but if you're curious about the bigger thing, take a look.