Software for resellers and music stores to sell used guitars at scale

Turn used guitars into revenue. Whether you are a music store or an independent reseller, TWICE streamlines your daily workflows from intaking products to selling them across multiple channels.

Process supply faster

Streamline trade-ins, buybacks, consignments, and auction pickups with fast, structured intake built for guitars and related gear.

Grade items accurately

Capture specs, condition, mods, and media consistently using dynamic attributes and item-level photos, audio, and documents.

List items at scale

Turn detailed intake data into clean, trustworthy product pages that serious players and collectors can buy with confidence.

Sell everywhere

Sync inventory across your shop, warehouse, web store, and marketplaces so every one-off guitar is always correctly listed and available.

From sourcing to selling in one continuous flow

Sourcing

Register resale inventory with structure

Whether you rely on customer trade-ins, buybacks, consignments, or collections from estates and stores, TWICE keeps used guitar intake structured and fast. Your team can add instruments on the spot, capture the right details in minutes, and keep margins clear from day one.
Unique IDs
Give every guitar and bass a serialized identity tied to its brand, model, year, and serial number the moment it enters inventory.
Register new items quickly
Quickly add new entries and fill in all the necessary product data consistently. You can also bulk create items by uploading a CSV.
Intake templates
Create reusable templates to streamline item intake and registration for used guitars, tailored to your workflows.
Flexible intake models
TWICE supports intake across sourcing models, from individual purchases to consignment, trade-ins, and bulk acquisition.
Inspecting & grading

Inspect and grade consistently

Define inspection criteria for used guitars, document condition and required records per unit, and assign review steps across your team for consistent grading.
Dynamic attributes
Log fret wear, neck straightness, hardware condition, electronics status, and cosmetic defects with purpose-built dynamic fields.
Item-level media
Add photos and documents to each item to support inspection, grading, and trust.
Attribute presets
Create reusable attribute presets that standardize grading and reduce manual work.
Task management
Route inspection and grading tasks through clear, repeatable workflows across your team.
Listing

List fast

Create listings in seconds using structured data, flexible variants, and attribute-based pricing rules.
Listing templates
Convert structured product data into customer-ready listings across channels with minimal effort.
Tags & collections
Use tags and collections to organize listings, promote your offerings, and power rule-based campaigns and more.
Variants
Use variants to group similar items under one listing and let shoppers choose the option that fits them best.
Conditional pricing
Set prices dynamically using rules tied to condition, grade, or other product attributes.
Selling

Sell across every channel

Whether you move inventory through your brick-and-mortar store, your own web shop, specialist marketplaces, or auctions, TWICE keeps every channel synced in real time. Cross-list one-off guitars without double-selling or manual reconciliation.
Cross-listing
Publish guitars to multiple sales channels — retail POS, online store, and marketplaces — in a few clicks.
Built-in online store
Sell directly through a ready-made ecommerce storefront designed for secondhand and one-of-a-kind items.
Integrated payments
Offer secure checkout with integrated payments and lower fees than typical marketplace commissions.
Unified order management
View all orders, returns, and payouts from every channel in one organized dashboard.

Selling used guitars is good business. Doing it with TWICE is even better.

From solo flippers to multi-location music retailers and brands running trade-in programs, TWICE powers any operation selling used guitars at volume with tools that respect the nuances of instruments, gear, and collectors.

Independent resellers

Replace spreadsheets and scattered tools with one easy-to-use system that helps you organize used guitars and spare part inventory and cross-list items quickly across the music resale channels that matter.

Local music stores

Streamline intake, pricing, and listing work while expanding from a physical store to online channels, and stand out by offering a more transparent and reliable buying experience.

Brands and retailers

Launch and own a certified guitar resale or trade-in program that extends asset lifecycles, strengthens customer relationships, and creates new revenue from pre-owned inventory.

Reselling guitars, simplified

Remove the most common resale bottlenecks and run your operations smoothly, whether you are just getting started or scaling a complex resale business.

Frequently asked questions

How does TWICE handle unique, one-of-a-kind guitars?

Every guitar in TWICE is tracked as an individual item with its own data: brand, model, serial number, specs, condition, mods, intake source, cost basis, and sales history. You can see exactly where each instrument is, what state it’s in, and which channels it’s listed on — without juggling spreadsheets or manual notes.

Can TWICE support trade-ins, buybacks, and consignment at the same time?

Yes. TWICE is built to handle multiple intake models in a single system. You can track trade-in values, cash offers, and in-store credit; manage consignor agreements, splits, and settlement cycles; and record outright purchases and refurbishment costs. All these flows roll up into clear inventory, margin, and payout reporting.

Can TWICE connect my in-store used guitar inventory to my online channels?

Yes. TWICE centralizes your inventory across physical stores, warehouses, pop-up events, and online sales channels. When a one-off guitar sells in-store or online, stock updates instantly everywhere else, reducing the risk of double-selling and keeping your team aligned on what’s actually available.

How does TWICE help with grading and pricing used guitars accurately?

TWICE lets you define standardized grading criteria for different instrument types, so your team records the same condition details every time. You can configure pricing rules by brand, model, year, condition, and demand, while still allowing manual overrides for rare or unusual pieces. This keeps valuations consistent, defendable, and fast to execute at the counter.

We already have a website — can we still use TWICE for our used guitars?

Absolutely. You can keep your existing website and use TWICE as the resale engine behind it. Connect via integrations, use embedded components, or link to a dedicated secondhand store powered by TWICE. The platform manages inventory, orders, and lifecycle tracking for your used guitars, while your current site remains the front end of your brand.