Local processing · your file stays on your device
Useful when vocals, instruments, or speech are split across left and right channels and one earbud or car speaker misses part of the recording. For dashboard playback, pair it with the car USB audio guide.
Choose a recording where speech, vocals, or instruments are uncomfortable because they sit strongly in one channel.
Use this when you want both ears, one speaker, or a simple playback device to hear the complete audio together.
Pick MP3 for a smaller listening copy or WAV when you need a mono editing file.
Click Convert to mono and download, then test the copy on earbuds, a phone speaker, or the device where the stereo file caused trouble.
Combine left and right channels so a single earbud still includes the full song, lecture, or recording.
Result preview: Both left and right channels are combined so a single earbud still contains the full song, lecture, or recording.
Make old stereo mixes easier when vocals are on one side and instruments are on the other.
Result preview: Old stereo mixes with vocals on one side and instruments on the other become easier to hear on modern headphones.
Create a mono copy for listeners with uneven hearing or one-sided hearing loss.
Result preview: A mono copy can make uneven stereo recordings more comfortable for listeners with one-sided hearing needs.
Avoid missing channel information on small mono speakers, older devices, or accessibility setups.
Result preview: Small mono speakers and older devices can play the complete audio instead of dropping one side of the mix.
Checked against mature online audio tools for the same job: the goal is not only to complete the task, but to make the next decision obvious.
Mature cleanup tools offer presets, before-and-after thinking, safety warnings, and clear export choices for voice, music, audiobooks, or old recordings.
Many one-click cleanup tools hide what changed, so users cannot tell whether a setting is too aggressive.
Cinch frames each cleanup around listening comfort, original-file safety, practical next steps, and clear result previews that reduce overprocessing.
Use it when you already have an audio file and need a cleaner, smaller, clearer, or easier-to-share copy before opening a full audio editor. It is useful for lecture recordings, meeting audio, voice notes, podcasts, music clips, MP3 files, WAV files, and saved browser recordings.
Yes. This browser-based audio tool is designed to process the file locally, so you can test settings, preview the result, and download a new copy without uploading private recordings to a server.
Common browser-supported formats such as MP3, WAV, M4A, AAC, OGG, and FLAC usually work best. Very large files, unusual codecs, or protected streaming files may need to be converted, trimmed, or recorded again first.
Preview the result, compare it with the original, and make sure the speech, music, timing, volume, file size, or metadata still feels right. If the setting is too strong, choose a gentler option and run the audio processing step again.
