5 free browser tools

Free AudioEncode tools

Free, no-account tools that run entirely in your browser. Nothing is uploaded — your audio never leaves your device.

12 output formats, per-file overrides, tags and cover art. Unlimited batch, all local.

Is that '320kbps' file real? The spectrogram knows. Verdict card included.

Strip dead air from the head and tail and normalize level — batch, in your browser.

Fix titles, artists, albums, and embed cover art — without a desktop app.

44.1k for music, 48k for video — convert cleanly and know why. WAV out.