Convert FITS to MIFF
Turn FITS files into MIFF in your browser. Drop your images below, choose your quality settings, and download the converted files — no registration, no watermark, no software to install.
- Powered by IMAGICK
- No sign-up
- Up to 32 MB per file
Image conversion tool
Why convert FITS to MIFF?
- MIFF supports transparency, so background-free areas of your FITS images survive the conversion.
- Conversion happens on demand and the result is deleted automatically, so nothing lingers.
How to convert FITS to MIFF
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1
Upload your FITS files
Drag up to 10 files onto the drop zone, or click to browse. The format is verified from the file content.
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2
Confirm the target format
MIFF is already preselected. Adjust quality with the slider, and set a maximum width or height if the files are too large.
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3
Start the conversion
Press Convert now. Each file is processed on the server and appears in the result list with its new size and dimensions.
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4
Download the results
Save files one by one, or use Download all to grab the whole batch. Links stay valid for a limited time.
FITS vs MIFF at a glance
| Feature | FITS | MIFF |
|---|---|---|
| Extension | .fits | .miff |
| MIME type | image/x-fits | image/x-miff |
| Type | Raster images | Raster images |
| Transparency | No | Yes |
| Animation | No | No |
Questions about converting FITS to MIFF
Is converting FITS to MIFF free?
Yes, completely free and without sign-up. There is a per-file size cap for server stability, but no daily quota.
How long does FITS to MIFF conversion take?
Typically under a second per image. Large photos, RAW files and multi-page documents take longer because they must be fully decoded first.
Which engine handles FITS to MIFF?
This pair is processed by IMAGEMAGICK. If you explicitly pick the other engine and it cannot handle the pair, the converter automatically falls back to the one that can.
Does the MIFF output keep transparency?
Transparency support in MIFF: Yes. When it is not available, transparent areas are composited onto the background colour you choose, white by default.
Does converting FITS to MIFF keep animation?
MIFF animation support: No. When frames cannot be preserved, only the first frame is written.
Are my FITS files deleted?
Yes. Both the upload and the converted output are deleted automatically after 60 minutes, and you can rely on the fact that access requires an unguessable random token.
About this conversion
FITS and MIFF are both well-established image formats, but they were designed for different jobs. Knowing which one wins in which situation saves you both storage and headaches.
On this server the pair is handled by IMAGICK, which decodes the source fully before writing the target. That matters for two reasons: colour profiles are applied consistently, and metadata such as EXIF orientation is baked into the pixels so the result is upright everywhere.
If you need to go back the other way, the reverse conversion is available on its own page — and if you are unsure which format suits your use case, the format guides explain the trade-offs in plain language.