Guitar Effects Builder

fyrefx

In-app purchases

About this app

Guitar Effects Builder is a practical tool for DIY pedal makers, boutique builders, and gear enthusiasts who want to manage guitar pedal design, parts, manufacturing, stock, and costs in one place. Whether you’re building for personal use or producing pedals professionally, the app helps you stay organised and in control from first design through to finished sales.

Free and Premium Access

Guitar Effects Builder is free to install and use with limits on the number of parts and pedals that can be created.
A single optional one-time in-app purchase unlocks unlimited parts, pedals, and full functionality.

No subscription
No time-limited trial

Parts Management

Create and manage detailed parts lists for pedal builds
Update stock quantities as components are received
Automatically calculate average part cost based on purchase price and quantity
Track current stock levels and identify parts that need reordering
View part cost history and total inventory value
Set low-stock thresholds and warnings

Pedal Design & Configuration

Configure complete guitar pedals using your parts inventory
Assign parts to pedals to calculate accurate build costs
Save images with pedals (layouts, schematics, reference photos)
Add text and image notes for documentation and build tracking
View a complete pedal overview including cost, notes, images, and history
Track pedal cost history with trend graphs
See cost-per-build updates instantly when part prices or stock levels change

Manufacturing & Production

Track pedals that are built, sold, promotional, or in stock
Record sale price, sold-to
Full Manufactured Pedals Dashboard showing:
Revenue tracking, Stock by pedal model
Recent builds
Available stock by location
Promotional pedals overview
Advanced sorting and grouping by:
Build date
Sale date
Pedal model
Location
Status

Production Dashboard including:

Priority purchase list for parts
Build capacity based on available parts
Inventory value of parts on hand

Serial Numbers
Built-in automatic serial number generator
Configurable prefixes and padding
Optional per-pedal serial formats
Serial locking rules to prevent accidental edits
Designed for real-world manufacturing workflows

Built-in Tools

Capacitor value converter
Resistor colour code decoder
Voltage divider calculator
Series / parallel resistor and capacitor calculator
LED resistor calculator

Reports and PDF Exports

Generate detailed PDF reports including:
Stock counts
Parts lists
Pedal build costs
Sales summaries

Help & Getting Started

Built-in help system to guide new users through:
Initial setup
Pedal design workflows
Manufacturing and inventory management

What’s new

New BJT/JFET Biasing Tools
Shopping List feature
Increased free limit
SMD resistor support
Added Dropbox support for cloud file access
New to-do list feature for tracking tasks
Low stock warnings to help manage inventory
Added sample part and pedal for new users
Improved Part Details screen with simpler editing
Added category creation from Add Part screen
Added low stock threshold setup for categories
Fixed duplicate category crashes and UI issues