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LAB / 06 · Live tool

URL Concat Tool

Turn Excel or CSV rows into parameterized URLs from a reusable template. Files stay entirely inside the browser.

Open tool
Bulk URL generator interface
06 / UTILITIES

01 / CONTEXT

The problem

Building hundreds of campaign, catalog or personalized URLs by hand is slow and error-prone. URL Concat treats spreadsheet columns as variables in a reusable URL template.

02 / CAPABILITIES

What it does

  1. 01

    Read the first sheet of Excel or CSV files.

  2. 02

    Automatically match template variables with column headers.

  3. 03

    Preview, copy and export generated URLs as CSV.

  4. 04

    Optionally encode spaces, accents and special characters.

03 / SYSTEM

Privacy & architecture

A single static HTML application using SheetJS. Files are processed locally in the browser and are never uploaded.

Built with

  • HTML
  • CSS
  • JavaScript
  • SheetJS

04 / HONEST NOTES

Known limits

  • Only the first spreadsheet sheet is processed.
  • Changing the template resets manual column mappings.
  • Duplicate or empty headers can produce ambiguous mappings.