GUIDE DIRECTORY
Make an informed audio edit.
Choose settings for formats, file size, fades, cuts, volume, channels, joins, speed and pitch, then check the exported result.
Convert M4A recordings to MP3
Understand AAC, ALAC previews, phone recording exports and size increases.
Read the guide →Convert WAV to a smaller MP3 copy
Choose a bitrate, compare PCM and MP3 payload and check the saved result.
Read the guide →Convert MP3 for a PCM WAV workflow
Plan for a larger file and understand why WAV cannot restore MP3 detail.
Read the guide →Transpose audio by semitones
Keep the pace, understand pitch intervals and check changes in voice character.
Read the guide →Change speed while keeping pitch
Choose a multiplier, predict duration and compare the stretched result.
Read the guide →Join recordings in the right order
Prepare transitions, handle format differences and check the joined result before downloading.
Read the guide →Mix stereo to mono carefully
Understand equal channel mixing, phase cancellation and what to listen for before saving.
Read the guide →Adjust volume without ignoring clipping
Understand gain in dB, compare levels and recognize the limits of a simple volume boost.
Read the guide →Trim audio to the part you need
Choose start and end times, preview a selection and check the exported duration.
Read the guide →Fade in music smoothly
Choose a gentle opening, compare it with a fade-out and preserve the full duration.
Read the guide →MP3 bitrate and quality
Compare 128, 192, 256 and 320 kbps, and understand what a higher bitrate can and cannot change.
Read the guide →Reduce MP3 file size
Estimate size from duration and bitrate, plan for a limit and check actual output bytes.
Read the guide →Fade out music naturally
Choose a fade duration, preview the ending and export without shortening your track.
Read the guide →Ready to try it?
Open the tool directory to compress, convert or fade your audio. Each tool offers an original preview and a downloadable result. For browser errors, supported files and saving help, visit help and contact.