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ACO ASE
File conversion

Convert ACO to ASE

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Is it possible to convert ACO to ASE?
Yes - ACO converts to ASE.

Photoshop can export swatches as ASE (File → Export → Color Lookup → or via Swatches panel → Save Swatches for Exchange as ASE). ASE is the modern cross-app format (Illustrator, InDesign, After Effects).

2 programs
Also to ASE: ACB · ASEPRITE

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Tested on macOS, Windows & Linux
Last verified Nov 2026

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How to convert ACO to ASE

Converting a .ACO file to .ASE lets you open the content in software that prefers the .ASE format, though some details may change compared with the original. The programs listed below open .ACO files and can save or export them to .ASE (or a closely related format). One of them is Adobe Photoshop: Adobe Photoshop is a program which enables to create and edit raster, vector and 3D graphic. It is often utilised by professional photographers, designers,….

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

Programs that convert ACO

Adobe Photoshop
Adobe Photoshop for Mac

About these formats

.ACO Adobe Photoshop Color Swatch File

An ACO file is an Adobe Photoshop Color Swatch file - a binary palette storing colors in spaces such as RGB, CMYK, Lab, and Pantone. Open it in Photoshop via the Swatches panel menu (Load…

Open .ACO details →
.ASE Adobe Swatch Exchange

An ASE file is an Adobe Swatch Exchange palette - a small file holding named colors (RGB, CMYK, or LAB) that you load into Photoshop, Illustrator, or InDesign through each app's Swatches…

Open .ASE details →