Micro — Free Download
FabFilter Micro is a compact filter plugin with a single analog-style filter, envelope follower, and input/output gain controls for shaping tone and adding saturation.

Purpose and Core Filtering
FabFilter Micro is a single filter plugin that recreates the smooth, analog-sounding filter from FabFilter One. It provides low-pass and high-pass modes for basic frequency shaping, allowing you to cut or boost selected ranges with a creamy character. The filter can transition from subtle warmth to raw, self-oscillating resonance, making it suitable for both corrective EQ tasks and creative sound design.
The interface centers on a large interactive filter display, showing the response curve and control points clearly. This design helps you adjust cutoff and resonance intuitively. The built-in envelope follower tracks input dynamics and modulates the cutoff frequency, adding automatic movement to the sound. This is useful for rhythmic filtering that reacts to the audio’s own amplitude, creating a dynamic, evolving texture without manual automation.
Saturation and Drive Control
A key strength of FabFilter Micro is its precise saturation control. Separate Input Gain and Output Gain parameters let you drive the filter circuit hard or keep it clean. Increasing input gain adds harmonic richness and analog-style distortion, while output gain matches levels to avoid clipping. This turns the plugin into a versatile saturator, not just a filter.
You can fine-tune the amount of saturation to suit different sources, from gentle tape-like warmth to aggressive fuzz. The filter’s self-oscillation can be pushed into screaming feedback, offering experimental possibilities. This precise drive control makes it ideal for adding character to synth leads, drums, or vocals, blending filter movement with distortion in a single module.
Workflow and Interface
FabFilter Micro’s workflow is streamlined for quick, tactile adjustments. The large filter display responds to drag gestures, letting you set cutoff and resonance visually and quickly. The input and output gain knobs are positioned clearly, promoting an efficient signal-flow mental model. Basic factory presets provide starting points for common filter and saturation settings.
The plugin uses a modern, straightforward interface that avoids clutter, suitable for both beginners and experienced producers. It works as a simple insert effect on any track. The envelope follower is always active, but you can adjust its amount via the cutoff control, meaning no extra routing is required. This simplicity reduces setup time, letting you focus on sound rather than menu diving.
Practical Applications
With its dual role as filter and saturator, FabFilter Micro suits many mixing and sound-design tasks. It can add motion to pad sounds by modulating the cutoff with the envelope follower, or create classic filter sweeps on synth lines. The saturation stages are useful for warming up digital recordings, adding grit to drum loops, or shaping bass tones.
In sound design, the self-oscillation feature enables experimental sounds like sirens, tones, or noise bursts. For producers, it offers a one-stop tool for dynamic EQ-style filtering and drive, reducing the need for multiple plugins. Its compact nature makes it ideal for parallel processing or as a creative insert on bus channels.
Key features
- Classic analog-sounding filter from FabFilter One
- Low-pass and high-pass filter modes
- Built-in envelope follower for cutoff modulation
- Input and output gain controls for saturation
- Large interactive filter display
- Basic factory presets included
- Pro Tools compatibility on Windows and macOS
Best for
Producers and sound designers seeking a simple but expressive filter with built-in saturation. It excels at adding warmth, drive, and dynamic movement to synth lines, drums, and vocals, and offers creative self-oscillation for experimental effects.