Five plugins for soft-clipping drums without losing the snap
Soft clipping on drums closes the gap between a kit that sounds fine and one that hits like a record. Here's which plugin works for kick channels, snares, and full drum buses.

Soft clipping on drums is the trick that closes the gap between a kit that sounds fine and a kit that hits like a record. The job is small and specific: shave the last few dB off the loudest transients so the bus sits higher, the snare reads denser, and the limiter downstream stops pumping on every kick. Done well, you barely hear the processor working. Done badly, the snap of the kick disappears and the cymbals turn metallic.
Five plugins cover most of what a drum bus or individual drum channel actually needs. Here's when to reach for each.
Kazrog KClip 3

KClip 3 is the maximalist option, and the one that turns up most often in mix-engineer plugin lists. Eight clipping modes (Smooth, Crisp, Tube, Tape, Germanium, Silicon, Broken Speaker, Guitar Amp), four-band multiband operation, mid/side processing, and up to 32x oversampling, all in one window. The Crisp mode is the one most people reach for on drums; Smooth is the gentler everyday setting.
The multiband side is what makes it worth the slot on a drum bus specifically. You can split the bus into kick sub, lower mids, snare body, and cymbal range, then drive each band into its own clip ceiling. That stops the kick's low-frequency content from generating the odd harmonics that mask the snare and turn the bottom of the kit tubby, which is the single most common failure of full-band drum-bus clipping.
Priced at $99 perpetual, no iLok, free trial available. Verify current pricing at the source.
Kazrog KClip Zero

The free entry point. KClip Zero ships the Smooth algorithm from KClip 3, with the Soften control sweeping from pure hard clipping at 0% to fully soft at 100%, 2x oversampling in real-time and 16x offline, and a clipping visualiser. No multiband, no mid/side, no other modes.
For an individual drum channel (a kick, a snare, a parallel room mic), that's almost all you need. Set the ceiling at -2 to -3 dBFS, drive in until you see 1 to 2 dB of clipping on the loudest peaks, and dial Soften to taste. It costs nothing and gets you the same core sound as the paid version's Smooth mode, which is enough to decide whether the full KClip 3 is worth the upgrade.
SIR Audio Tools StandardCLIP
StandardCLIP has been a mainstay in electronic-music mastering chains for years, and producer Far Too Loud has named it as part of his own chain in a Charlie Darker AMA. It does one thing extremely well: clip cleanly, with a huge amount of headroom for aliasing suppression. Three modes (Soft Clip Classic, Soft Clip Pro, Hard Clip), an adjustable clip fader so the ceiling isn't fixed at 0 dBFS, oversampling up to 256x, and selectable linear-phase or minimum-phase filtering on the oversampler.

The 256x figure is more useful as an offline-render option than something you'd run live. At sensible real-time rates it still suppresses aliasing better than most competing clippers, which matters when you're driving hi-hats and cymbals hard. Soft Clip Pro adds a graduated compression curve below the clip threshold, which is the mode to reach for if a pure clip feels too abrupt on a busy drum bus.
Interface is sparse and looks its age, but at €25/$25 it's the cheapest serious tool here.
Newfangled Audio Saturate

Saturate is the Spectral Clipper algorithm pulled out of the Elevate mastering limiter and sold on its own. The defining feature, per Newfangled, is that "the sine waves at different frequencies are treated independently, meaning that the large low frequencies don't crowd out the finer detail frequencies." That translates to a simple practical difference: you can push the drive far harder than a full-band clipper without the kick's low end smearing the snare and hi-hats.
That makes it the right pick for the situation where every other clipper falls down. Heavy drum-bus drive, lots of low-end energy, and you want the cymbals to still read. SHAPE sweeps from soft saturation to hard clipping, version 1.10 added a Symmetry control for even-order harmonics if you want warmer character, and an efficient anti-aliasing mode for real-time use. Up to 24 dB of overdrive is available before the tonal balance shifts noticeably.
The spectral processing does add latency, so it's not the one to print on a live monitoring path. $49 standalone, included in the Elevate Mastering Bundle, 30-day demo. iLok account required (no dongle).
FabFilter Pro-L 2 (Bus and Aggressive algorithms)

Pro-L 2 is a limiter, but two of its algorithms get close enough to clip behaviour to count, and it's already on most people's drum buses. FabFilter's own manual describes Bus as "especially nice for (drum) bus processing and individual tracks... not meant to be transparent, rather the opposite. Think glue, pump or squash," and Aggressive as a "near-clipping style of limiting" aimed at rock and EDM material.
Put Bus on a drum subgroup with a short lookahead and a few dB of gain reduction, and you get the kind of squashed, glued character that sits between a limiter and a clipper. Aggressive pushes further toward true clip behaviour. Neither will produce the obvious harmonic colour of KClip's Crisp mode or the spectral discipline of Saturate, so this is the tool when you want bus glue with clip-style peak control from a plugin you already own, not when you want audible clip distortion. 32x linear-phase oversampling, true peak limiting, and full EBU R128 metering come along for the ride.
$199 USD, 30-day free trial.
Which plugin fits which situation
For one plugin on one channel, KClip Zero. Free, the Smooth algorithm covers individual kicks and snares cleanly, and the Soften knob gives you the full range from hard to gentle.
For a full drum bus where the kick is doing a lot of low-frequency work, Saturate. The spectral algorithm is the only one here that won't let the sub muddy the mids when you drive it hard.
For everything else (mode-by-mode character, multiband control on a complex bus, mid/side on a stereo room), KClip 3 earns the $99. Set the ceiling, drive into it gently, oversample at 2x for tracking and 4x for the bounce, and check the kick's attack in solo before you commit.