Lowpass Filter Online
Apply lowpass filter to your audio
How It Works
- 1
Upload audio
Upload your audio file.
- 2
Set cutoff frequency
Choose frequency above which to cut.
- 3
Apply filter
Click Apply to filter audio.
- 4
Download audio
Download filtered audio.
Key Features
- Supports MP3, WAV, FLAC, AAC, OGG and more
- Real-time preview before processing
- Batch processing for multiple files
- Adjustable quality settings
- Preserves audio metadata and tags
- Lightning-fast processing engine
Why Choose Our Tool
Lowpass Filter Online Free
Remove hiss, sibilance, and high-frequency noise! Lowpass filters let low frequencies through while blocking highs. Perfect for reducing harsh audio or creating lo-fi vintage effects.
Drop your audio file here
or click to browse
Supports: MP3, WAV, FLAC, AAC, OGG, M4A and more
Reduce Background Hiss
Old recordings or cheap mics add high-frequency hiss. Lowpass filters clean that up without affecting the core audio. Audio restoration specialists in 2026 use this for digitizing old tapes.
Lo-Fi Vintage Sound
Some voices have harsh, piercing highs. Gentle lowpass filter smooths them out without sounding muffled. Useful for aggressive rap vocals or shouty rock singing.
Tame Harsh Vocals
Free online tool with secure processing