Step-by-step guides for getting real work done in your browser — removing vocals, finding a song’s BPM, making acapellas, cutting and merging audio, and pitch-shifting cleanly. Practical, tool-by-tool, and free.
Add echo to audio free in your browser: pick slapback, classic, canyon or ping-pong, set delay time and repeats, then export the echo effect as WAV or MP3.
Use a free stereo to mono converter in your browser: mix both channels or keep one side, check for phase cancellation first, and see how file size changes.
Add reverb to audio free in your browser: pick room, plate, hall or cathedral, set the wet/dry mix, and export WAV or MP3 with the full reverb tail intact.
Use a free audio enhancer in your browser: pick Voice or Music mode, set the strength, compare before and after, then export. Audio never leaves your device.
How to use an online tone generator: pick a frequency and waveform, start quiet, then test speakers, check left/right channels, hunt rattles and tune by ear.
Microphone not working? Work through this checklist: mute switch, wrong input device, blocked permissions, zero input level, then cable and driver fixes.