Convert anything, at global scale.
200+ formats and automation APIs that feels instant.
CONVERT
From
To
Drop files or choose a source
Upload multiple files at once, mix formats, and fine-tune every conversion with format-aware settings.
Max 2GB per file · Drag & drop ready · Mixed file types welcome
ICO at a glance
ICO
ICO grew with the Windows desktop experience, where applications needed icons that scaled across shell views, toolbars, shortcuts, and later higher-DPI environments.
FITS at a glance
FITS
FITS became a durable scientific standard because observatories, spacecraft, and analysis tools needed a stable interchange format that outlived individual instruments and software stacks.
Format comparison
| Feature | ICO | FITS |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 1985 | 1981 |
| Inventor | Microsoft | NASA / astronomical data community |
| Status | active | active |
| Transparency | Not supported | Not supported |
| Animation | Not supported | Not supported |
| Primary use cases |
|
|
| Layer support | Not supported | Not supported |
| Vector scaling | Not supported | Not supported |
| Camera raw data | Not supported | Not supported |
| HDR support | Not supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use ICO
- Your source file is already in ICO.
- Preserve source expectations before exporting to FITS.
- ICO is commonly used in image workflows.
When to use FITS
- Your target workflow expects FITS.
- Improve delivery compatibility with FITS.
- FITS is commonly used in image workflows.
FAQs
Why convert ICO to FITS?
Convert to FITS when preserving scientific image data, observation metadata, or instrument-derived captures for astronomy and research workflows.
It is the right target when measurement context matters as much as the picture itself.
What changes when converting ICO to FITS?
This conversion changes how the format behaves in downstream tools and delivery environments.
What should I review after converting ICO to FITS?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.