About This Slowed + Reverb Maker
Guitar Tool Hub's free slowed reverb maker — also searched as a slowed and reverb maker — turns any song into a slowed + reverb (or sped-up / nightcore) version right in your browser. Upload an MP3, WAV, M4A, OGG, or FLAC, pick a one-tap vibe or dial in the speed and reverb yourself, preview it instantly, then download the result as MP3 or WAV. Slowing playback lowers the pitch and tempo together for that dreamy, chopped-and-screwed feel, while the reverb — generated in code, with no bundled sample — adds an atmospheric wash over the top. Because everything happens locally on your device, nothing is ever uploaded.
- 01Slow a song down for the classic slowed + reverb feel
- 02Speed it up for a sped-up / nightcore sound
- 03Add anything from a light room to a cavernous wash of reverb
- 04One-tap presets: Slowed + Reverb, Deep Slowed, Sped Up, Nightcore
- 05Instant in-browser preview
- 06Download as MP3 (192 kbps) or lossless WAV
- 07Works with MP3, WAV, M4A, OGG & FLAC
- 08Runs entirely on your device — files never leave your browser
- 09Free — no account or install needed
Frequently Asked Questions
Upload your audio file, then either tap the "Slowed + Reverb" preset or set the Speed slider to around 80–85% and the Reverb slider to taste. Press Preview to hear it, and when it sounds right, download it as an MP3 or WAV. Everything happens in your browser — nothing is uploaded.
The classic slowed + reverb sound sits around 80–85% of the original speed — slow enough to feel dreamy without dragging. Deeper, more chopped-and-screwed edits go as low as 70–75%. The built-in "Slowed + Reverb" preset uses 85%, and "Deep Slowed" uses 75%; you can fine-tune from there.
Yes — and that's intentional. This tool slows the tempo and pitch together, which is what gives slowed + reverb its deep, lower sound. If you instead want to change the tempo while keeping the original pitch (or change the key without changing the speed), use the Pitch Changer, which shifts the two independently.
Yes. Set the Speed slider above 100% (or tap the "Sped Up" or "Nightcore" preset). Speeds above 100% raise the pitch and tempo together for the bright, energetic sped-up / nightcore sound, and you can still add a touch of reverb on top.
No install is needed. This slowed reverb maker is a web app — it runs in your browser on desktop and mobile, so there's nothing to download and no account to create. Because the audio is processed on your device rather than on a server, it works like an offline app would, but from a web page.
No. The entire process — decoding, slowing, adding reverb, and exporting — runs locally in your browser using the Web Audio API. Your file is never sent anywhere, which keeps it private and means the tool works even on large files without an upload wait.
You can load MP3, WAV, M4A, OGG, FLAC, and most common audio your browser can decode, and export the finished slowed + reverb version as a 192 kbps MP3 or a lossless WAV file.
Yes — completely free. No account, no watermark, no download to install, and no payment required.