Clampit

Mastering Limiter

"A clean, loud, streaming-ready ceiling for your master bus — with three knee characters, LUFS metering, and program-dependent auto release."

Clampit is a lookahead true-peak limiter built to sit last on your master or bus. Set a ceiling your audio can't cross, dial in the release and knee character you want, and check your work with delta monitoring and built-in loudness metering. Signed and notarized on macOS, code-signed on Windows. AU, VST3, CLAP, AAX and Standalone on macOS; VST3, CLAP and Standalone on Windows — it installs cleanly and gets out of your way.

Clampit — Mastering Limiter — plugin interface for Mac and Windows
Download Free All Plugins Read the Guide Try Clampit Raw (Free)
AU VST3 CLAP AAX Standalone macOS Windows

FEATURES

Three Knee Characters

◆KNOCK (hard knee) — transparent and surgical for clean limiting
◆GLUE (6 dB soft knee) — smooth quadratic curve for musical limiting
◆CLOBBER (hard + tanh saturation) — aggressive character for heavy limiting with harmonic color
◆~20ms anti-pop crossfade on knee mode changes — no clicks during live transitions

Core Limiter

◆Input gain 0–24 dB, ceiling −6.0 to 0.0 dB, release 1–1000ms with skewed range
◆Lookahead 0–5ms with automatic DAW latency compensation
◆Stereo link 0–100% blend between independent L/R and fully linked stereo limiting
◆4x polyphase IIR oversampling for true peak inter-sample peak detection

LUFS Metering & Analysis

◆Full BS.1770 K-weighted LUFS-M (400ms), LUFS-S (3s), and LUFS-I (integrated, gated) metering
◆Crest factor readout (color-coded: green 6–8 dB, yellow 4–6 dB, red <4 dB)
◆GR waveform trace: 256-sample scrolling history with peak hold line
◆Clip counter, mono check, TPDF dithering (16-bit and 24-bit modes)

Workflow

◆Dual-stage program-dependent auto release adapts to crest factor and GR depth
◆Constant Loudness (LINK) — applies inverse of input gain for bias-free A/B comparison
◆Delta monitor — isolate exactly what the limiter removes, with 5 Hz DC blocker
◆Loudness-matched bypass, A/B comparison, and 15 factory presets

FACTORY PRESETS

Init
Main Stage Master
Sub-Deep Transparency
Clobber Bus
Forensic Mono Guard
Transparent Master
Loud Master
Aggressive
Gentle Glue
Streaming Safe
Broadcast
Bus Limiter
Fast Transient
Dual Mono
Remi Blaze Limit

SYSTEM REQUIREMENTS

  • OS macOS 15.0 (Sequoia) or later · Windows 10 or 11 (64-bit)
  • Architecture Apple Silicon + Intel (Universal Binary) · x64 on Windows
  • Formats macOS: AU, VST3, CLAP, AAX, Standalone. Windows: VST3, CLAP, Standalone
  • DAW Any AU, VST3, CLAP or AAX compatible host
  • Access Free — no account required

DOWNLOAD FREE

Clampit is free — no account, no wallet, no strings. Download the installer and drop it in your DAW.

Download Free All Plugins

Licensed under the Freeware License.

FREQUENTLY ASKED QUESTIONS

Is Clampit free?

Yes. Clampit is completely free, with no account, no subscription and no trial period. Clampit Raw is the one-knob version if you want something even simpler.

Does Clampit run on Apple Silicon and Windows?

Yes. Clampit is a Universal Binary that runs natively on Apple Silicon (M1/M2/M3/M4) and Intel Macs, and it also ships as a 64-bit build for Windows 10 and 11.

Which formats and systems does Clampit support?

AU, VST3, CLAP, AAX and a Standalone app on macOS 15.0 or later, as a Universal Binary for Apple Silicon and Intel Macs. VST3, CLAP and a Standalone app on Windows 10 and 11, 64-bit. AAX ships on macOS only.

How do I install Clampit?

On macOS, double-click the .pkg installer and follow the prompts; it installs every format at once. On Windows, run the .exe installer. The macOS build is code-signed and notarized by Apple and the Windows build is Authenticode signed, so neither needs a security override. No dongle and no extra account.

How is Clampit different from Clampit Raw?

Clampit Raw is the one-knob version: the same engine behind a single macro, with the detailed controls hidden. Clampit gives you the full control set.