Click the "Select File" button above, and choose your ICB file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.
Convert ICB to another file type
The converter easily converts your ICB file to various formats - free and online. No Molsoft ICM or or other Raster Image software needed.
ICB to JPG
ICB to PDF
ICB to PNG
ICB to GIF
ICB to BMP
ICB to TIFF
ICB to TIF
ICB to ICO
ICB to PSD
ICB to SGI
ICB to VGA
ICB to GRY
Convert a file to ICB
To convert other file formats to the "Legacy Bitmap / Scientific Data" file type, you need software like Molsoft ICM or a similar tool.
About ICB files
The .icb extension is a classic example of a filename collision, representing two completely different eras of computing. The most common modern use (approx. 38%) is as a Molsoft ICM project file, a binary format used in computational chemistry to store molecular models, protein structures, and docking simulations. These files are strictly proprietary to Molsoft ICM software and cannot be opened by standard text editors or viewers. The friction here is high: you cannot share these files with colleagues who don't have the specific scientific software installed. For archiving or sharing research, users often need to convert these visualizations into PDF documents or static PNG snapshots.
However, in the context of digital archives and graphic design, an .icb file is often a legacy Truevision Targa bitmap image (also known as TGA). Originally designed for Truevision's high-end video capture boards, this raster format provides excellent color depth but suffers from large file sizes due to lack of efficient compression (often using only basic RLE). Modern web browsers and mobile devices do not natively support Targa ICB files. To make these images usable for the web or social media, the best workflow is converting them to WebP (for performance) or JPG (for compatibility). Additionally, some .icb files may be Ironclad contract blueprints (often just renamed ZIP files) or CRI Middleware audio buffers used in game modding.
Use Convert.Guru to open and convert your ICB file.
If you want to convert ICB file to WEBP, CUR or PSB, you can use Molsoft ICM or similar software from the "Raster Graphics or Molecular Data" 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 ICB, try Molsoft ICM or another comparable tool in the "Raster Graphics or Molecular Data" category.
The ICB 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 ICB converter.