Normalize loudness across multiple audio files to broadcast-standard LUFS levels (–16 LUFS for podcasts, –14 LUFS for streaming). Podcast networks use this to unify episode volume. Everything runs locally in your browser — nothing is uploaded.
Combine multiple audio files into one continuous track. Supports crossfade between songs and automatic volume normalization. Perfect for making mixtapes, podcasts, and audiobooks.
Apply smooth volume fades to your audio tracks. Supports fade in, fade out, or both with linear, logarithmic, exponential, and S-curve transitions. Perfect for podcast intros and outros.
Batch compress WAV recordings to space-saving MP3 files. Podcasters shrinking raw studio recordings for distribution on Spotify and Apple Podcasts. Everything runs locally in your browser — nothing is uploaded.
Normalize email addresses by removing dots (Gmail), stripping +tags, and lowercasing. Process multiple emails at once for deduplication and cleaning.
Convert a podcast episode audio file into a full text transcript using AI speech recognition.
Bulk Audio Normalizer lets you normalize loudness across multiple audio files to broadcast-standard LUFS levels (–16 LUFS for podcasts, –14 LUFS for streaming). Podcast networks use this to unify episode volume. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Normalize loudness across multiple audio files to broadcast-standard LUFS levels (–16 LUFS for podcasts, –14 LUFS for streaming). Podcast networks use this to unify episode volume. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Upload a file from your device. Drag and drop or use the file picker to select your document.
Yes. After the initial page load, Bulk Audio Normalizer runs entirely on your device with no internet connection needed. All processing is done locally.
Loudness Units Full Scale — the industry standard for measuring perceived loudness. Streaming platforms (Spotify, YouTube) target –14 LUFS. Podcasts typically use –16 LUFS.
No. Loudness normalization adjusts the overall volume level without altering the audio content. Dynamic range and frequency balance are preserved.
MP3, WAV, OGG, FLAC, and M4A. Output format matches the input format.
Audio Compressor
Balance audio dynamics with professional compression controls. Perfect for podcasts, voice overs, and music production. Features threshold, ratio, attack, release, and makeup gain.
Bulk Audio Converter
Convert an entire folder of audio files between MP3, WAV, OGG, FLAC, and M4A formats in one batch with consistent quality and bitrate settings. Everything runs locally in your browser — nothing is uploaded.