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Trim songs, edit voice recordings, and convert formats directly in your browser.
100% Private. No file uploads. Edit audio & MP3s locally.
Upload Files
Drag & drop files here, or click to select
Drag & drop audio files here
Supported: MP3, WAV, AAC, OGG, FLAC, WMA, M4R • Max recommended: 200MB
Unlike other converters, we don't upload your files to a server. All processing happens locally on your device using WebAssembly technology.
No queue times or slow uploads. Because it runs in your browser, even large WAV or FLAC files process instantly.
Support for MP3, WAV, AAC, M4A, OGG, FLAC, WMA, and M4R (iPhone Ringtones). Convert between any of them with ease.
Works perfectly on iPhone, Android, tablets, and desktop. Create ringtones or trim voice memos on the go.
Trim, convert, and fine-tune tracks in one place. Perfect for quick fixes without installing software.
Cut intros, outros, or dead air in seconds with precise waveform trimming.
Slice MP3 files directly in your browser. No uploads, no waiting.
Reduce file size by choosing a lower bitrate or switching to efficient formats like M4A.
Boost quiet recordings or lower loud clips to balance levels for podcasts and calls.
Shift pitch for voice effects or musical tweaks while keeping timing stable.
Speed up lectures or slow down practice tracks for easier listening.
Add smooth fade-ins and fade-outs for professional transitions.
Use EQ presets to adjust bass, treble, and overall tone in a few clicks.
Reduce background hiss and room noise for cleaner podcast, interview, and voice-note exports.
Join multiple clips into one continuous file, reorder tracks, and export in the format you need.
This toolkit is designed for practical, real editing workflows: trim first, clean noise, shape tone with EQ, then merge or convert for delivery. It is built for creators who need speed without sacrificing privacy, because everything runs locally in your browser.
If you are preparing a podcast, online course, short-form video voiceover, or ringtone, you can complete the entire flow here without installing desktop software.
Trim podcast intros, clean up voiceovers, and convert raw recordings to high-quality MP3s for easy distribution.
Convert between lossless formats like FLAC and WAV, or create short preview clips of your tracks to share on social media.
Optimize large meeting recordings or customer service calls to save storage space without losing vocal clarity.
Yes, Shrinkify is completely free to use. There are no hidden fees or watermarks.
Upload your song, trim it to 30 seconds or less, select "M4R" as the output format, and click Process. You can then drag the .m4r file to your iPhone manually.
Absolutely. You can upload multiple files at once and use "Global Mode" to apply the same conversion settings (e.g., Convert all to MP3 128kbps) to all of them.
For most music, 192kbps or 256kbps is the sweet spot. For spoken word or podcasts, 128kbps is more than enough and results in much smaller files.
Use the Noise tool inside the editor to dial in denoising strength. It is processed locally in your browser and is best used gently first (around 15-35%) to avoid making speech sound robotic.
Yes. You can queue mixed formats like MP3, WAV, and M4A in Merge Audio, reorder tracks, and export one final file in your chosen output format.
Yes. You can quickly apply tonal shaping for common listening profiles, then fine tune as needed before exporting.
Since processing happens on your device, there is no artificial limit. However, processing files longer than 2 hours might depend on your browser's memory capacity.
No. Audio processing runs on-device in your browser, so your files do not leave your system during trimming, conversion, EQ, denoise, or merge operations.
Trim audio clips with a local browser workflow.
Convert audio files to MP3 with bitrate control.
Create short ringtone clips and export M4R.
Detailed theory for precision editing, leveling, and export strategy.