Audio Cutter: MP3 Editor & 8D

Audio Cutter is the all-in-one audio editor for your phone. Cut MP3 files, make ringtones, remove vocals, convert formats, record your voice, create 8D audio and more. Everything runs on your phone: no uploads, no account, no ads, and no limits on file length. Most audio apps put ads after every edit, lock splitting behind a subscription, or lose the file you just saved. Audio Cutter does the opposite. Every tool is free, saved files go to a folder you can find, and your music never leaves your device. CUT AND EDIT - MP3 cutter and audio trimmer with a waveform you can zoom down to one millisecond - Cut out the middle, delete, silence, copy, paste and add silence - Unlimited undo and redo - Lossless cutting for MP3, M4A and FLAC: the cut is made without re-encoding, so quality stays exactly the same - Fade in and fade out with different curves - Merge any number of songs with crossfade - Mixer: layer several tracks, set volume, balance and start time for each, and lower the music automatically under a voice - Split a long file into parts every N seconds, into equal parts, at silences or at times you choose - Silence remover for podcasts, lectures and voice memos RINGTONE MAKER - Make a ringtone, alarm or notification sound from any song - Set it as your default sound in one tap, with a guided permission step and a system picker fallback VOCAL REMOVER AND KARAOKE - Remove vocals from a song and keep the music, or keep only the vocals (acapella) - Get both as two tracks, or keep a little vocal as a guide - Runs on an on-device AI model, so there is no upload and no daily limit 8D, 4D, 16D AND 32D AUDIO - Turn any song into 8D audio that circles around your head, or try 4D, 16D and 32D presets - Fine-tune the speed of rotation, width, up and down movement, reverb and path CONVERT AND COMPRESS - Audio converter for MP3, M4A (AAC), WAV, FLAC, OGG, OPUS, AMR, WMA and AC3 - Batch convert many files at once - Video to MP3: extract audio from any video, or copy the original audio without quality loss - Compress audio to a target size such as 16 MB for WhatsApp, 25 MB for email, or any size you choose - Tag and cover art editor for title, artist, album, genre, year and artwork SOUND AND VOICE - 10-band equalizer with 13 presets and a bass booster - Volume booster, even-out volume and loudness targets (LUFS) for Spotify, YouTube, podcasts and broadcast - Speed and pitch changer with presets for nightcore and slowed + reverb - 23 effects: reverb, echo, chorus, flanger, compressor, limiter, telephone, radio and more, with a 15-second preview - Noise remover: an on-device AI removes background noise from voice, and a classic mode cleans hiss and hum from music - Voice enhancer: noise removal, clarity, levelling and loudness in one tap - Voice changer: chipmunk, deep, robot, alien, male to female, female to male and more - Reverse audio CREATE - Voice recorder in lossless quality with a live level meter, pause and resume - Music maker: compose royalty-free tracks in 14 styles (lo-fi, pop, EDM, hip hop, trap, jazz, cinematic, piano and more) with your mood, tempo, key and instruments - Text to speech: turn text into an audio file with the voices on your phone - Tone generator: sine, square, saw, white, pink and brown noise, sweeps, binaural beats for focus and sleep, dial tones and a metronome ANALYZE - Find the BPM and musical key of a song, with Camelot notation for DJs - Measure loudness (LUFS), loudness range and true peak PRIVATE BY DESIGN - Works completely offline. The app does not ask for internet access - No ads, no watermark, no account, no subscription - Your files stay on your phone and are saved to Music/Audio Cutter, Ringtones, Alarms or Notifications so every other app can see them Perfect for musicians, podcasters, students, DJs, teachers, voice actors, video creators and anyone who wants a custom ringtone. Questions or ideas? Write to [email protected]. We read every message.