Color Solutions International (CSI)

Color Toolbox

Offline utilities for evaluating, organizing, and converting digital color data.

Available Tools

All files are processed locally in your browser.

ΔE

Color Evaluation

Evaluate standards and batches from QTX files under multiple illuminants.

  • CMC color differences and pass/fail
  • Spectral curves and color plots
  • PDF, CSV, Excel, and QTX exports
Open Color Evaluation
QTX

QTX File Manager

Split, rename, and combine QTX color-standard files.

  • Split standards into individual files
  • Rename from Excel or CSV mappings
  • Combine selected QTX files in order
Open QTX File Manager
ACO

Adobe Swatch Maker

Convert spectral standards in a QTX file into Adobe swatch palettes.

  • Adobe ASE and ACO output
  • CIE D50, D55, D65, or D75
  • Standard names retained
Open Swatch Maker
XLS

Color Data Exporter

Create a customized Excel report from QTX spectral color standards.

  • Select one or more illuminants
  • sRGB, XYZ, Lab, Hex, and CMYK
  • Calculation notes included
Open Data Exporter
Offline use: Keep the toolbox folder together and open index.html in Microsoft Edge, Google Chrome, or another modern browser. Normal Datacolor QTX files are supported; encrypted QTX2 files are not.