ACORN Converter

Convert ACORN files online for free


Drop or upload your .ACORN file
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How to convert your ACORN file

  1. Click the "Select File" button above, and choose your ACORN file.
  2. You'll see a preview.
  3. Click the "Convert file to..." button to save your file in the format you want.

Convert ACORN to another file type

The converter easily converts your ACORN file to various formats - free and online. No Photoshop or extra software needed.

  • ACORN to JPG
  • ACORN to PDF
  • ACORN to PNG
  • ACORN to GIF
  • ACORN to BMP
  • ACORN to TIFF
  • ACORN to TIF
  • ACORN to ICO
  • ACORN to PSD

Convert a file to ACORN

The converter also works in reverse, so you can convert other Raster Image formats to ACORN with high quality output.


About ACORN files

The .acorn file extension represents a proprietary image project created by Acorn, a popular image editor for macOS developed by Flying Meat. Functionally similar to a PSD file from Adobe Photoshop, an .acorn file stores the complete state of an editing session, including multiple raster and vector layers, editable text, layer masks, non-destructive filters, and blend modes.

While Acorn files are excellent for preserving editing capabilities on a Mac, they present significant compatibility challenges for cross-platform sharing. The format is exclusive to macOS, meaning users on Windows, Linux, or Android cannot natively open or view these files. A unique technical quirk of the format is that modern .acorn files are actually SQLite databases disguised as image files, used to store layer data and metadata efficiently. However, this internal structure is not readable by standard image viewers. To share these designs with clients or non-Mac users, it is essential to convert them into universally compatible formats like JPG or PNG for viewing, or PSD and PDF to retain some editing structure and vector data.

Use Convert.Guru to open and convert your ACORN file.

Users also converted QTIF, QFI and JP2 files.


FAQ

If you want to convert ACORN file to WEBP, CUR or PSB, you can use Acorn or similar software from the "Image Editor Project" category. In the File menu, look for Save As… or Export….

To convert RAW, PNG, AI, NEF, PSB, DNG, SVG, GIF, EPS, JPG, ARW or PDF files to ACORN, try Acorn or another comparable tool in the "Image Editor Project" category.



The ACORN Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our ACORN converter.