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Edit audio tracks with live waveforms and zero upload lag using browser Web Audio API.
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
See how Shrinkify compares directly to 123apps on limits, speed, privacy, and cost.
| Feature Metric | 123apps | Shrinkify (On-Device) |
|---|---|---|
| Daily Operations Limit | Strictly limited to 5 files per day | Unlimited (Process as many tracks as you want) |
| Upload & Processing Lag | Must upload entire multi-megabyte file | Instant local waveform decoding in RAM |
| Real-Time Audio Preview | Laggy server playback buffer | Real-time Web Audio API player & EQ |
| Privacy & File Security | Audio files stored on remote servers | 100% In-Browser (Recordings never leave device) |
| Volume Boosting & Equalizer | Freemium with premium upgrade tiers | Up to 300% volume boost & 10-band EQ free |
Uploading a 50MB podcast recording or DJ mix to a website like 123apps takes several minutes, especially on mobile data or slower connections. Shrinkify decodes the audio waveform directly in your computer's RAM using the browser's native Web Audio API, opening your track in less than half a second.
If you want to quickly make a custom 30-second ringtone from a song or cut background noise from a voice recording, you can trim, fade in/out, and export without waiting for any server upload progress bars.
Common questions about switching from 123apps to Shrinkify.
Yes. You can trim individual tracks with our MP3 Cutter and combine multiple songs or voice memos into a single seamless audio file using our Audio Merger.
Our Volume Booster features a smart peak-limiting compressor that amplifies quiet speech while preventing harsh digital clipping and audio distortion.
Trim your MP3 and audio files to exactly the clip you need. Set start and end points, preview, and export.
Boost quiet recordings or reduce loud audio in seconds. Adjust volume and re-export your file.
Speed up or slow down audio files without changing pitch. Good for podcasts, lectures, and music practice.
Shift the pitch of songs or voice recordings up or down without changing speed.