Slowed and Reverb Maker Online
Drop your audio file here
or click to choose a file
Choose fileMP3, WAV, OGG, FLAC, M4A · Max 50 MB
Drop it!
Decoding audio...
Advanced settings ▸
What is Slowed + Reverb?
Slowed + reverb is a lo-fi remix style born on YouTube and SoundCloud that became the sound of late-night aesthetic playlists. A track is slowed down — typically to 0.7x–0.9x speed — which lowers the pitch and creates a dreamy, nostalgic vibe. Reverb is layered on top to give the sound a spacious, ethereal quality, like listening to music in an empty parking garage at night.
The style is hugely popular on TikTok, Instagram Reels, and YouTube — creators use it for aesthetic edits, mood videos, and chill content. Our tool lets you make slowed and reverb versions of any song directly in your browser. No downloads, no accounts, no uploads to a server.
How to Make a Slowed + Reverb Song
- Upload your audio — drop an MP3, WAV, OGG, FLAC, or M4A file (up to 50 MB).
- Pick a preset or customize — choose Classic (0.8x), Heavy (0.7x), or Subtle (0.9x), then fine-tune with the speed and reverb sliders.
- Preview and export — hit play to hear the effect in real time, then export as a 320 kbps MP3.
Frequently Asked Questions
Does slowing down change the pitch?
Yes, and that's the point. Unlike time-stretching, slowed + reverb intentionally lowers the pitch along with the tempo. The deeper tone is a core part of the lo-fi aesthetic — it makes vocals sound warmer and more atmospheric.
What speed should I use?
0.8x (Classic) is the most popular choice and works well for most songs. Try 0.7x (Heavy) for a more dramatic, bass-heavy effect, or 0.9x (Subtle) if you want a gentle slowdown that's easy to listen to on repeat.
Can I use the result on TikTok or YouTube?
The tool processes whatever audio you provide — we don't check or restrict how you use the output. Copyright responsibility is on you, so make sure you have the right to use the original track.
What audio formats are supported?
MP3, WAV, OGG, FLAC, M4A, AAC, and WebM. The output is always a 320 kbps MP3 file.
Is my audio uploaded to a server?
No. All processing happens locally in your browser using the Web Audio API. Your files never leave your device.
How good is the audio processing quality?
We use the same techniques found in professional audio software: convolution reverb with real impulse responses, phase vocoder time-stretching, HRTF-based spatial audio, EBU R128 peak limiting, and LUFS loudness normalization. What you hear in the preview is exactly what you get in the export — we guarantee preview/export parity across every tool.