Interactive Filter Designer
Filter & Bode Plot Playground
Select a template, tweak component values, and watch the Bode magnitude, phase, and step responses update in real time. Share designs via URL, export data, and iterate toward the perfect filter.
RC / RL / Sallen-KeyPole-Zero ReadyExportable Plots & CSV
Interactive Design
Pole-Zero Canvas
Drag poles and zeros directly to sculpt your response. Changes sync with the transfer function and charts in real-time.
Zeros
×
PolesStable region (Re < 0)
Frequency Response
Bode Magnitude & Phase
Estimated cutoff near 10.0 Hz (-76.0 dB)
p1 = -6.283 k + j0
Time Domain
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- Selected template
- RC Low-Pass (1st Order)
Simple resistor-capacitor network with -20 dB/dec roll-off. - Current specs
- Cutoff: 1.000 kHzGain: 1.00 V/VQ: 0.500
Component Values
Bill of Materials
| Component | Value | Range | Step |
|---|---|---|---|
| R (Ω) | 1.000 k Ω | 1.000 – 1.000 M | 1.000 |
| C (F) | 100.000 n F | 1.000 p – 10.000 m | 100.000 n |