Audio Tools

Record high-quality audio from your microphone or extract audio from MP4 and WebM video files offline. 100% secure, browser-based utility.

Trim audio clips and convert between MP3, WAV format client-side - Free online audio cutter

Read and write ID3 tags, album art, artist, and track details directly to MP3 file headers - Free online ID3 tag editor

View all ID3 tags — title, artist, album, artwork, BPM, and every embedded frame — from any MP3 file instantly in your browser - Free online MP3 metadata viewer

Generate beautiful vector (SVG) or image (PNG) waveforms from your audio files - Free online waveform generator

Normalize audio loudness to a target LUFS level client-side and download the result as WAV — supports Spotify, YouTube, EBU R128, and podcast standards. Free online audio normalizer.

Compress OGG Vorbis audio by adjusting quality level (q-1 to q10) — shows size vs quality trade-off. Upload any audio format and download compressed OGG instantly. Free online OGG compressor.

Compress audio assets to web-optimized sizes and download an MP3 + OGG pair for maximum browser compatibility — includes ready-to-use HTML5 audio snippet. Free online audio web compressor.

Convert stereo audio to mono and compress — immediately halves audio data size with minimal perceptual loss for voice. Four mix modes, sample rate control. Free online stereo to mono compressor.

Compress WAV audio by reducing bit depth (24→16→8 bit) and sample rate — shows exact size savings. Free online WAV compressor, no signup required.

Detect beats per minute by tapping along to music or uploading an audio file for automatic analysis — built-in metronome included. Free online BPM detector.

Play an audio file and visualize its real-time frequency spectrum with a live EQ display — bars, line, and filled modes — Free online audio equalizer visualizer

Remove background hiss, hum, and ambient noise from voice recordings using spectral subtraction — 100% browser-based, no uploads. Free online audio noise reducer.

Generate a valid iTunes/Apple Podcasts compatible RSS 2.0 feed XML from episode metadata — no server required. Free online podcast RSS feed generator.

Re-encode MP3 files at a lower bitrate (320/256/192/128/96/64 kbps) using LameJS — shows size and quality tradeoff. Accepts MP3, WAV, M4A, OGG. Free online MP3 compressor.

Compress podcast episodes to streaming-optimized mono MP3 — converts stereo to mono, applies 80 Hz high-pass filter, 4 bitrate presets (48–128 kbps). Reduces RSS feed hosting costs. Free online podcast audio compressor.

Reduce audio sample rate from 48 kHz → 44.1 kHz → 22 kHz → 11 kHz — shows file size reduction at each step. WAV (lossless) and MP3 output. OfflineAudioContext resampling. Free online audio sample rate reducer.

Compress M4A audio by reducing sample rate and bit depth — ideal for Apple Voice Memos. Shows exact size savings. Free online M4A compressor, no signup required.

Compress AAC audio files by reducing bitrate — shows quality comparison with original at the selected rate. Free online AAC compressor, no signup required.

Reduce any audio file's bitrate to hit a target file size — shows quality impact at every bitrate and recommends a safe floor. Free online audio bitrate reducer.

Automatically reduce any audio file to under 10 MB by iterating bitrate — shows the full iteration log and selects the highest quality that fits. Free online audio compressor.

Compress FLAC files using maximum lossless compression levels (0–8) — shows size reduction vs default encoding. Free online FLAC compressor, no signup required.

Compress voice memo recordings for speech intelligibility — applies high-pass filter, loudness normalisation, and mono conversion before compressing. Free online voice recording compressor.

Automatically reduce any audio file to under 1 MB by iterating sample rate — shows estimated audio duration preserved. Free online audio compressor to 1MB.

Automatically reduce any audio file to under 5 MB — common WhatsApp voice message and podcast preview size limit. Shows compression steps and duration preserved. Free online audio compressor to 5MB.

Reduce audio file size to under 25 MB for email attachment limits — selects format and bitrate automatically. Free online audio for email compressor, no signup required.

Compress audio to OPUS format — the most efficient lossy audio codec, typically 30% smaller than MP3 at the same quality. 8 bitrate presets from 6–128 kbps. Free online OPUS compressor.

Compare MP3, OGG, AAC, and OPUS compression for the same audio file — shows size and estimated quality score at each format. Free online audio compression comparison tool.

Compress multiple audio files at once with a shared bitrate setting — shows per-file savings and total reduction. Free online batch audio compressor, no signup required.