AudioSlim MP3 Audio Compressor

Make audio small enough to send, without guessing which settings will work.

AudioSlim is an offline audio compressor and MP3 editor for Android. Set a target file size, listen to the result before you save it, and keep the audio on your phone. Compress MP3, WAV, M4A, AAC, FLAC, OGG and Opus. Trim recordings, convert formats, reduce background noise, mix tracks, change speed and volume, and make ringtones.

COMPRESS MP3 AND AUDIO TO A TARGET SIZE

Sending a voice note, uploading a podcast, attaching a recording, freeing up storage? Pick a Smart mode, or set the numbers yourself.

• Compress MP3, WAV, M4A, AAC, FLAC, OGG and Opus
• Smart modes: Voice Message, Social Clip, Small Upload, Ringtone, HQ Music, Ultra light
• Quality tiers: Compact, Balanced, Good quality, High quality
• Set a target size when you have an upload or attachment limit
• Adjust bitrate, sample rate, and mono or stereo yourself
• See the original size and the compressed size side by side
• Preview the compressed audio before you save it
• Your original file is kept, and you choose where the new one goes

Target size works with MP3, AAC, M4A, OGG and Opus.

BATCH AUDIO COMPRESSOR

Compress several tracks in one pass: lectures, interviews, voice memos, podcast episodes, music libraries.

• Add multiple files and follow the progress of each one
• Use one output format for the whole batch, or give a track its own
• Share several files into AudioSlim and send them straight to Batch

MP3 CUTTER AND AUDIO TRIMMER

Keep the part you want and cut the rest on a visual waveform.

• Cut and trim audio with waveform controls
• Remove mistakes, long pauses and dead air
• Add fade in and fade out for clean starts and endings
• Make short clips for messages, alarms and ringtones

AUDIO CONVERTER

Change format and compression in one pass.

• Convert between MP3, WAV, M4A, AAC, FLAC, OGG and Opus
• Convert WAV, M4A, AAC, FLAC or OGG to MP3
• Choose bitrate, sample rate, and mono or stereo
• Rename the export and choose where it is saved

VOICE ENHANCER AND NOISE REDUCER

Show AudioSlim what the background noise sounds like, then reduce it.

• Clean up voice notes, lectures, interviews and meetings
• Reduce steady noise such as wind, fans and air conditioning
• Choose light, medium or strong noise reduction
• Reduce breaths and hiss between phrases
• Normalize volume and lift quiet speech

Results depend on the recording and on the kind of noise in it.

AUDIO MIXER, VOLUME AND SPEED

Combine speech, music and effects into a voice over, a podcast segment or a clip ready to share.

• Mix several audio tracks and set the volume of each one
• Change gain, and change speed from 0.5x to 10x
• Add fades for clean transitions
• Preview the mix, then compress it so it sends faster

RINGTONE MAKER

Turn a song or a recording into a custom Android ringtone.

• Cut the exact section, add fades, and hear it before you apply it
• Create ringtones, alarm sounds and notification sounds
• Assign a ringtone to one specific contact

YOUR AUDIO STAYS ON YOUR PHONE

The audio files you pick are processed locally on your device. AudioSlim does not upload them to Kebek Interactive servers. Compression and editing run on-device and work offline.

• No account needed to compress or edit
• Your source files and exports stay under your control
• Choose the folder where finished files are saved

Use AudioSlim for voice notes, podcasts, lectures, interviews, meetings, songs and any recording that has to get smaller, cleaner or into a different format.

Compress audio. Reduce MP3 size. Trim, convert and share, with the work done on your phone.

Recent changes:
• Internal improvements. Nothing changes in how you use AudioSlim.