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
EXR at a glance
EXR
OpenEXR came from film-production needs at ILM and then evolved into an open industry format that spread across rendering, compositing, and broader high-end image pipelines.
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.
Format comparison
| Feature | EXR | ICO |
|---|---|---|
| File type | Image | Image |
| Extensions |
|
|
| MIME type |
|
|
| Created year | 2003 | 1985 |
| Inventor | Industrial Light & Magic | Microsoft |
| 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 | Supported | Not supported |
| Streaming ready | Not supported | Not supported |
When to use each format
When to use EXR
- Your source file is already in EXR.
- Preserve source expectations before exporting to ICO.
- EXR is commonly used in image workflows.
When to use ICO
- Your target workflow expects ICO.
- Improve delivery compatibility with ICO.
- ICO is commonly used in image workflows.
FAQs
Why convert EXR to ICO?
Convert to ICO when preparing Windows application icons, installer assets, or other desktop-interface graphics that require native icon packaging.
It is useful when multiple icon sizes must travel in a single platform-friendly file.
What changes when converting EXR to ICO?
This conversion changes how the format behaves in downstream tools and delivery environments.
Moving to ICO removes HDR content.
What should I review after converting EXR to ICO?
Validate output quality on representative files and confirm the target format behaves correctly in the destination workflow.