NULL JSFX — Audio Without Noise

These plugins are designed exclusively for Cockos Reaper

EEL2 Scripting • Native Sliders • Zero Dependencies • CPU Efficient • Free & Open Source

Download

v1.0 • Updated: 25/07/26

Release Notes v1.0

July 25, 2026

INITIAL RELEASE

Added 24 JSFX units for recording, mixing and mastering — useful for professionals and amateur audio engineers and musicians

PLUGINS

5-BAND PARAMETRIC EQ — Flexible multi-filter EQ with 8 filter types per band
CHANNEL UTILITY — All-in-one channel tool with phase, DC block, mono check
STEREO WIDTH — Mid/Side imaging with frequency crossover
FILTER — TPT State-Variable Lowpass with resonance
TAPE SATURATION — Vintage warmth and glue
HARMONIC DRIVE — Even-order exciter
DISTORTION — Aggressive dual-stage overdrive
BIT CRUSH — Lo-fi quantization and downsampling
CHORUS — Stereo thickening and detune
FLANGER — Jet sweep with feedback
PHASER — Moving notch sweep with 1-8 stages
VIBRATO — Pitch modulation wobble
TREMOLO — Rhythmic amplitude modulation
AUTO PAN — Stereo movement with tempo sync
RING MOD — Metallic carrier modulation
GATE — Noise and vocal gate with sidechain HPF
DYNAMICS — Compressor and expander
LIMITER — Limiter, clipper, and brickwall modes
DELAY — Echo and pre-delay
CLICK REPAIR — Audio restoration
DEESSER — Sibilance reduction
PITCH SHIFTER — Real-time pitch shift with octave/semitone/cents
REVERB — Space and ambience
TRANSIENT SHAPER — Attack and sustain control

PROPERTIES

Pure EEL2 scripting — zero external dependencies
Native Reaper sliders for maximum stability
Carbon (#232323) visual theme across all plugins
CPU-efficient design for real-time processing
Free and open source

Individual Plugins

HOW TO

Install Effects

After downloading, extract the null-jsfx folder to your Reaper Effects directory:

Windows: C:/Users/[Username]/AppData/Roaming/REAPER/Effects/
macOS: ~/Library/Application Support/REAPER/Effects/
Linux: ~/.config/REAPER/Effects/

Restart Reaper or re-scan your plugins folders. NULL JSFX will be available under the JS category in the FX browser.

Load Plugins

Click the FX button on any track
Open the FX Browser (if not visible)
Navigate to the JS category
Find plugins under JS: NULL JSFX folder
Select any plugin to load it

FX Chains (Optional)

Copy .RfxChain files to your FXChains folder:

Windows: C:/Users/[Username]/AppData/Roaming/REAPER/FXChains/
macOS: ~/Library/Application Support/REAPER/FXChains/
In Reaper's FX Window, go to FX Chains category
Double-click any chain to load all plugins automatically

⚠ Important: Plugins must be installed in Effects/null-jsfx/ subfolder for chains to work properly.

💡 Tip: To see all plugins organized in the FX explorer, filter by searching "NULL" or create a Smart Folder: Menu "View" → FX Browser → right-click on "Folders" → "Add folder" → "Smart folder" → Filter contains "NULL". They will auto-categorize!

🎤 Shortcut: Press / to quickly focus the plugin search bar. ESC closes all modals.

5-BAND EQ

Flexible Multi-Filter EQ

CHANNEL UTILITY

All-in-One Channel Tool

STEREO WIDTH

Mid/Side Stereo Imaging

FILTER

TPT State-Variable Lowpass

TAPE SATURATION

Vintage Warmth & Glue

HARMONIC DRIVE

Even-Order Exciter

DISTORTION

Aggressive Dual-Stage Overdrive

BIT CRUSH

Lo-Fi Quantization & Downsampling

CHORUS

Stereo Thickening & Detune

FLANGER

Jet Sweep with Feedback

PHASER

Moving Notch Sweep

VIBRATO

Pitch Modulation Wobble

TREMOLO

Rhythmic Amplitude Modulation

AUTO PAN

Stereo Movement & Width

RING MOD

Metallic Carrier Modulation

GATE

Noise & Vocal Gate

DYNAMICS

Compressor & Expander

LIMITER

Limiter, Clipper & Brickwall

DELAY

Echo & Pre-Delay

CLICK REPAIR

Audio Restoration

DEESSER

Sibilance Reduction

PITCH SHIFTER

Real-Time Pitch Shift

REVERB

Space & Ambience

TRANSIENT SHAPER

Attack & Sustain Control

Coming Soon

More tools in development