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Compression plugins

16 plugins, sourced from developer spec pages and cross-checked where needed. This is a spec-based comparison, not a set of hands-on reviews.

16 of 16 plugins Select up to 4 to compare
FabFilter Pro-C 3 plugin interface

1FabFilter Pro-C 3

FabFilter

$199

Flagship digital compressor. Fourteen compression styles, full sidechain EQ, built for precision and creative sound design alike.

digital sidechain lookahead VSTVST3AUCLAPAAX NativeAAX AudioSuite
  • Fourteen distinct compression styles, from transparent to vari-mu-style coloration, cover a huge range of jobs in one plugin
  • Full sidechain EQ section with multiple filter shapes makes ducking and de-essing setups fast without a separate plugin
  • Lookahead up to 20ms available, useful for catching fast transients cleanly
  • $199 puts it well above most single-purpose compressors, a real commitment for one plugin
  • So many compression styles and parameters on screen that dialing in one specific vintage character takes real exploring
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TDR Kotelnikov GE plugin interface

2TDR Kotelnikov GE

Tokyo Dawn Labs

$54

Proudly digital mastering compressor. Frequency-dependent ratio, equal-loudness workflow, built for transparent bus and master duty.

digital sidechain VST2VST3AUAAX
  • Frequency-dependent ratio and an equal-loudness workflow are mastering-specific features rare at this price point
  • External sidechain input plus a variable sidechain highpass filter gives fine control over what triggers gain reduction
  • 64-bit oversampled signal path aims for clean, distortion-free gain reduction rather than character or coloration
  • A serious cost for a single mastering compressor, priced closer to boutique mastering tools than typical bus compressors
  • No dedicated multiband mode, so cross-band-specific gain reduction needs a separate tool alongside it
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Waves SSL G-Master Buss Compressor plugin interface

3Waves SSL G-Master Buss Compressor

Waves

$39.99

VCA bus compressor modeled on the SSL 4000 G console center section. Glue-style gain reduction, built for mix bus duty.

VCA VSTVST3AUAAX
  • Feedback-style VCA design is purpose-built for gentle, musical mix bus glue rather than aggressive limiting
  • Mix knob enables parallel compression without a separate bus or plugin chain
  • Runs in every major format on both Windows and macOS
  • Built around one specific console sound, not a flexible general-purpose compressor for varied jobs
  • No sidechain input listed, so ducking or keyed compression needs a different tool
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OTT plugin interface

OTT

Xfer Records

Free

Free three-band upward/downward multiband compressor. Depth and time controls, built for aggressive, larger-than-life dynamics.

digital multiband VSTVST3AUAAX
  • Completely free, with a huge and disproportionate influence on modern electronic music production
  • Upward and downward compression across three bands simultaneously creates a dense, energetic sound fast
  • Simple control set (depth, time, input/output gain) makes it quick to get an aggressive result without deep technical knowledge
  • Fixed three-band crossover with documented phase cancellation at the crossover points, a real limitation for precise multiband work
  • Aggressive by design, easy to over-squash a mix or track without a light touch
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UAD 1176 Classic Limiter Collection plugin interface

UAD 1176 Classic Limiter Collection

Universal Audio

$49

FET limiter collection modeling three hardware 1176 revisions. Ultra-fast gain reduction, built for vocals, drums, and bus duty.

FET sidechain VSTVST3AUAAX
  • Models three distinct hardware revisions (Rev A, Rev E, 1176AE) in one collection, each with its own circuit character
  • Ultra-fast FET gain reduction catches transients that slower compressor types let through
  • Sidechain filter helps tame low-frequency pumping on bus and mix duty
  • List price is steep for what is fundamentally one circuit family modeled three ways
  • No multiband mode, all three models are single-band, fixed-character limiters
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Klanghelm DC1A plugin interface

Klanghelm DC1A

Klanghelm

Free

Free single-knob character compressor. Minimal controls, fast to dial in, built for adding punch without fuss.

VSTVST3AUAAX
  • Completely free, with no functional limitations compared to a paid compressor
  • Extremely small control set makes it one of the fastest compressors to dial in on a track
  • Runs in every major plugin format on both Windows and macOS
  • Minimal control set means no fine-tuned ratio, knee, or multiband shaping for detailed work
  • No sidechain input, so it can't be triggered by an external source
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LALA plugin interface

LALA

Analog Obsession

Free

LA-2A-inspired optical compressor. Sidechain filtering added to the classic opto formula, built for smooth, silky vocal and bus compression.

Opto sidechain VST3AUAAX
  • Free to download, giving access to an optical compressor style normally found on premium hardware-modeled plugins
  • Adds sidechain filtering on top of the classic opto formula, a modern touch the original hardware never had
  • Runs in VST3, AU, and AAX across both Windows and macOS, including Apple Silicon
  • Download and updates are gated behind Analog Obsession's Patreon rather than a plain direct download link
  • Slow optical-style gain reduction isn't suited to catching fast, sharp transients
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Rough Rider 3 plugin interface

Rough Rider 3

Audio Damage

Free

Free vintage-style character compressor. Sidechain highpass filtering, built for pumping rhythmic tracks over surgical precision.

sidechain CLAPVST3VST2AAXAULV2
  • Completely free across every desktop platform, with no trial limitations or nag screens
  • Sidechain highpass filter, fed internally or from an external source, shapes exactly what triggers gain reduction
  • Available in an unusually wide range of formats, including CLAP and LV2 alongside the usual VST3/AU/AAX
  • Built for pumping, aggressive character rather than transparent gain reduction, not the right tool for subtle work
  • Adds noticeable coloration and a hard clip on the output, so it's not suited to mastering-grade transparency
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Molot plugin interface

Molot

VladG

Free

Free character compressor with sigma and alpha attack modes. Vintage, colored sound, built for adding grit rather than transparency.

sidechain VST2AU
  • Completely free, with a devoted following for its distinctive vintage character
  • Dual sigma and alpha attack modes give two genuinely different compression behaviors in one plugin
  • External sidechain input lets it be triggered by a different source than the track it's compressing
  • Windows gets VST2 only, and Mac is limited to VST2 and AU, no VST3 or AAX support for modern host compatibility
  • Built entirely around its own colored, characterful sound, not a fit when transparent gain reduction is the goal
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Presswerk plugin interface

Presswerk

u-he

$129

Digital compressor with switchable feed-forward, feed-back, and interactive detection. Internal sidechain ducking, built for flexible mix and creative work.

digital sidechain CLAPAUVST3AAX
  • Three switchable detection topologies (feed-forward, feed-back, interactive) cover both surgical and musical compression styles in one plugin
  • Internal sidechain ducking with bipolar delay and filtering built in, no separate ducking chain needed
  • Runs in an unusually wide format list including CLAP alongside VST3 and AAX
  • No multiband mode, all detection topologies operate on the full signal as one band
  • Three detection modes and internal sidechain routing add a learning curve next to a simpler single-mode compressor
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Shadow Hills Mastering Compressor Class A plugin interface

Shadow Hills Mastering Compressor Class A

Shadow Hills / Plugin Alliance

$165

Two-stage Class-A mastering compressor blending optical and discrete circuits. Switchable output transformers, built for high-end mastering chains.

Opto sidechain AAX AudioSuiteAAX DSPAAX NativeAUVST2VST3
  • Blends optical and discrete Class-A compression stages in one unit, a two-stage signal path most mastering compressors don't offer
  • Switchable Nickel, Iron, and Steel output transformers shape overall tone beyond just gain reduction
  • External sidechain input plus a sidechain filter gives precise control over what triggers compression
  • List price puts it firmly in premium mastering-chain territory, a serious investment for one processor
  • Two-stage Class-A design with transformer switching has a steep learning curve next to a simpler single-knob mastering compressor
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The Glue plugin interface

The Glue

Cytomic

$99

VCA bus compressor modeled on an 80s British console design. Feedback-style circuit simulation, built for smooth mix bus glue.

VCA sidechain VSTVST3AUAAX
  • Circuit-simulated feedback VCA design targets the smooth, glue-like character of classic console bus compression
  • External sidechain support plus a sidechain highpass filter gives control over what triggers gain reduction
  • One-time purchase with no subscription, runs in every major plugin format on both Windows and macOS
  • No multiband or lookahead controls, it's a fixed single-band bus compressor
  • Built specifically around one console-style glue character, not a general-purpose compressor for every job
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Waves CLA-76 plugin interface

Waves CLA-76

Waves

$39.99

FET compressor modeled on the classic mid-60s limiting amp. Fast attack, aggressive character, built for vocals and drums.

FET VSTVST3AUAAX
  • Extremely fast FET-style attack captures transients other compressor types can't grab in time
  • Signature aggressive coloration adds punch and density without extra processing
  • Runs in every major format on both Windows and macOS
  • Single-purpose character tool, not built for transparent or surgical gain reduction
  • No multiband or lookahead controls, all its personality comes from one fixed FET-style circuit
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Klanghelm MJUC plugin interface

Klanghelm MJUC

Klanghelm

$26

Variable-mu tube compressor with three switchable circuit models. Vintage 1950s-60s character, built for coloration over transparency.

Vari-Mu VSTVST3AUAAX Native
  • Three distinct vari-mu circuit models in one plugin, each with its own dedicated controls
  • Tube-style gain reduction curve adds natural-feeling density that's hard to get from a purely digital compressor
  • Affordably priced for a multi-model vari-mu emulation
  • No sidechain input or multiband mode, it's built purely around single-band tube coloration
  • Vari-mu behavior reacts slower than fast-attack compressor types, not the right tool for catching sharp transients
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UAD API 2500 Bus Compressor plugin interface

UAD API 2500 Bus Compressor

Universal Audio

$49

VCA bus compressor modeled on the API 2500 hardware. Discrete and VCA detector modes, built for punchy mix bus glue.

VCA VSTVST3AUAAX
  • Modeled on a hardware unit known specifically for punchy, aggressive bus compression rather than transparent gain control
  • Runs in every major plugin format on both Windows and macOS
  • Native or UAD-accelerated operation, so it can run on a host CPU or offload to Apollo/UAD hardware
  • No sidechain, multiband, or lookahead controls confirmed, it's a fixed single-band bus tool
  • Built around one specific console character, not a flexible everyday compressor
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Unisum plugin interface

Unisum

Tone Projects

$199

Digital mastering compressor with three-band sidechain detection. Frequency-dependent ratio and threshold, built for transparent, precise mastering.

digital sidechain VST3AAXAU
  • Splits sidechain detection across three frequency bands with parallel RMS and peak detectors, without splitting the actual audio path
  • Frequency-dependent ratio and threshold give mastering-grade tonal control most single-band compressors can't match
  • Wideband processing keeps the signal path simple even with multiband-level detection detail
  • $199 price puts it squarely in premium mastering-tool territory, a serious investment for one processor
  • Multi-band detection with frequency-dependent controls takes real study to use to its full potential
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