Online Audio Effects

If you want to…	Use	Why
Make vocals or a mix clearer	Audio EQ	Eight parametric bands let you cut mud, tame harshness, or brighten a recording with real frequency-response feedback.
Add low-end weight without muddying the mix	Bass Boost	A dedicated shelf or peak boost around the low frequencies, with a limiter to protect against clipping.
Give a dry recording a sense of space	Add Reverb	Algorithmic room, plate, and hall reverb, or your own impulse response, with full control over decay and mix.
Make a track feel like it's moving around your head	8D Audio	A binaural or stereo orbit effect built for headphone listening, with adjustable rotation speed and width.
Make everything sound consistently loud	Volume Booster	Gain, peak normalize, or loudness normalize to a specific LUFS target, with a true-peak limiter to avoid clipping.
Speed a song up with rising pitch for a classic nightcore sound	Nightcore Maker	Linked or independent speed-and-pitch control, built specifically for the nightcore aesthetic.
Slow a song down with a dreamy reverb tail	Slowed + Reverb	Independent speed and reverb controls, with the choice to let pitch drop or keep it steady.
Build a tape-warped, mellow throwback edit	Vaporwave Maker	Tape wow and flutter, tone shaping, saturation, and hiss on top of a slowdown, for a texture slowed + reverb doesn't cover.
Cut a slowed clip sized for TikTok, Reels, or Shorts	TikTok Slowed Clip	Clip-length presets, drag-to-select timing, and fades built around a short vertical-video edit.
Speed up a track for a faster edit without raising the pitch	Sped Up Maker	Keep-pitch speed changes with a BPM helper for hitting an exact target duration.

Which effect fits the sound you're going for?

Audio effects on Audio Lab fall into three rough jobs: shaping tone, adding space, and controlling loudness. If a vocal or mix sounds thin, muddy, or harsh, you want a tonal tool — the online EQ for detailed frequency work across eight bands, or the bass booster if the issue is specifically low end. If a recording sounds too dry or flat, add reverb or the 8D audio maker add a sense of room or movement without changing the underlying tone. If everything just needs to hit a consistent, usable level, that is a job for the volume booster, not EQ or reverb.

A separate group of effects — nightcore, nightcore reverse, slowed + reverb, sped up, tiktok slowed reverb, and vaporwave — build a whole listening aesthetic out of speed, pitch, and texture rather than one parameter. They overlap in mechanics, since most of them change playback speed and, in some modes, pitch together, so picking between them comes down to the specific mood and output you want. Each one has its own default speed range and pitch behavior, so two effects with similar names can sound noticeably different once rendered.

Which speed-and-pitch effect fits the mood?

Nightcore speeds a track up and, in its classic mode, lets the pitch rise with it, which is the familiar high-energy, high-pitched sound the style is known for; independent mode splits speed and pitch so you can push one further than the other. Nightcore reverse, often searched as daycore, does close to the opposite: it slows the track down with the pitch dropping in classic mode, plus a reverb tail for a heavier, slower feel. Slowed + reverb is the broader slow-and-atmospheric effect, where you choose whether pitch drops with the speed or stays put, and dial in reverb wet mix, decay, and tone separately from any daycore-specific aesthetic.

Vaporwave adds a specific texture on top of a slowdown — tape wow and flutter, a darker tone filter, saturation, and optional tape hiss — for a warped, nostalgic feel that plain slowed + reverb does not attempt on its own. Sped up covers the opposite direction for creator edits, keeping pitch natural by default and including a BPM helper for hitting an exact target duration, while tiktok slowed reverb is purpose-built for cutting a short clip to 15, 30, or 60 seconds with fades, rather than processing a full track end to end.

Combining effects without overdoing it

Most of these tools work on one file at a time, but Continue in another tool lets you chain them: EQ a vocal, then add reverb, then check the loudness, without re-uploading anything in between. The main thing to watch for is stacking too many time- or pitch-changing effects in a row — running a track through several speed changes and reverb passes compounds artifacts instead of canceling them out, and the result can drift further from what you intended than a single well-chosen effect would.

A simpler rule: pick the effect that matches your actual goal first — tone, space, loudness, or a specific aesthetic — render a preview with the Original/Processed toggle, and only add a second effect if the first one did not get you all the way there. Presets are a fast way to check whether a built-in starting point already solves the problem before layering on more processing.

Frequently asked questions

What's the difference between add reverb and the reverb inside nightcore or vaporwave?

Add reverb is a standalone tool with full control over wet mix, decay, pre-delay, damping, and width, or your own impulse response. The reverb inside style tools like slowed + reverb or vaporwave is tuned as part of a specific aesthetic alongside speed and texture, with fewer independent parameters.

How is nightcore different from sped up?

Nightcore is built around the classic high-pitched, high-energy aesthetic, with pitch rising alongside speed by default. Sped up targets creator edits where you generally want speed without a pitch change, plus a BPM helper for hitting a specific target duration.

How is vaporwave different from slowed + reverb?

Slowed + reverb is the general slow-and-atmospheric effect. Vaporwave adds tape wow and flutter, a darker tone filter, saturation, and optional hiss on top of a slowdown, aiming at a specific warped, nostalgic texture rather than a generic slow effect.

Can I use more than one effect on the same file?

Yes. Render a file in one tool, then use Continue in another tool to carry the result into the next one without re-uploading. Keep in mind that stacking several time- or pitch-changing effects compounds their artifacts, so it's worth previewing after each step.

Are these effects free, and do files get uploaded?

Yes, every effect here is free with no sign-up, and processing happens entirely in your browser. Your audio file is never uploaded to a server.

Which tool do you need?

Effects tools 11

Audio EQ

8D Audio

Add Reverb

Bass Boost

Nightcore Maker

Daycore Maker

Slowed + Reverb

Sped Up Maker

TikTok Slowed Clip

Vaporwave Maker

Volume Booster