AVX-CS-009 · E-commerce · Shopify App
Collentix: Smart Collection Manager for Shopify
A Shopify app that imports and exports Custom and Smart Collections using simple Excel files, turning hours of manual work into a single upload.

Shopify app
A working Shopify app merchants install to manage collections through Excel rather than the admin UI.
import & export
Custom and Smart Collections move in and out through simple Excel files, with insert/update/skip results per row.
hundreds at once
Import or export hundreds of collections in a single upload, with offline editing and re-import.
Executive Summary
What we built, and why it matters.
Avrixo built Collentix, a Shopify app that streamlines how merchants manage store collections. It lets them import and export both Custom and Smart Collections through simple Excel (.xlsx) files instead of editing collections one at a time.
Merchants can bring in hundreds of collections at once, edit offline in Excel and re-import changes, export everything for backups or store migrations, and optionally update existing collections by handle.
The Core Problem
The bottleneck beneath the business goal.
Managing collections in Shopify's admin is slow and manual. Bulk changes, backups, and moving collections between stores all mean repetitive, error-prone work.
Merchants needed a way to work with collections the way they already work with data, in a spreadsheet, and push changes back reliably.
The Technical Solution
Engineered for accuracy, scale, and trust.
Avrixo developed Collentix on Shopify's Remix-based app framework with a Node.js backend, building an import/export pipeline that maps Excel rows to Custom and Smart Collections and reports per-row insert, update, and skip results.
An optional handle-based update mode lets merchants safely update existing collections rather than duplicating them, with export used for backups and store-to-store migration.
Architecture Notes
System decisions that made the product viable.
Bulk import/export of Custom and Smart Collections via .xlsx.
Per-row insert / update / skip reporting on every run.
Handle-based update mode for existing collections.
Export for backups and store-to-store migration.
Tech Stack Matrix
Infrastructure behind the outcome.
Shopify App
Shopify · Remix · App Framework
Backend
Node.js · Excel (.xlsx) Pipeline
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