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How to Convert FITS to MNG — Quick & Free

Fast, instant FITS to MNG conversion. No signup required. Just drop your .fits file and get .mng in seconds.

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About FITS to MNG Conversion

Short answer: yes, you can convert FITS to MNG online for free, and quality is well preserved with the right settings. Just upload your .fits file to CocoConvert, pick MNG as the output, and click Convert. The whole process takes seconds.

Now for the details. FITS is a widely used file format. MNG is a widely used file format. Converting between these two formats lets you convert between formats quickly.

Your FITS file is decoded and re-encoded as MNG. Converting FITS to MNG maintains high quality with CocoConvert's optimised encoder settings.

CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.

Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.

How to Convert FITS to MNG

  1. 1

    1. Upload FITS

    Drop your .fits file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.

  2. 2

    2. Select MNG

    Choose .mng from the output dropdown. Settings are pre-configured for best results.

  3. 3

    3. Convert

    One click. The server handles all the heavy lifting using FFmpeg and Sharp.

  4. 4

    4. Download

    Your .mng file is ready. Download it directly or get all files as a zip archive.

What Happens When You Convert FITS to MNG

Your FITS file is decoded and re-encoded as MNG.

1

Your FITS file is uploaded and validated

2

The file is decoded (parsed into its raw data)

3

The data is re-encoded in MNG format

4

The converted file is ready for download

Format Comparison

.fits

FITS

.fits file

Extension.fits
MIME Typeimage/fits
CategoryImage
.mng

MNG

.mng file

Extension.mng
MIME Typevideo/x-mng
CategoryImage

Should You Convert FITS to MNG?

When to Convert

  • When you need a MNG file

Frequently Asked Questions

Is FITS to MNG conversion free?

Yes. CocoConvert offers free FITS to MNG conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.

How fast is FITS to MNG conversion?

Most files convert in 2–10 seconds depending on size. Large image files may take 30 seconds. Batch jobs process in parallel for maximum speed.

What happens to my files after conversion?

Your uploaded FITS file and the converted MNG file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.

Does converting FITS to MNG lose quality?

Converting FITS to MNG maintains high quality with CocoConvert's optimised encoder settings.

Can I convert MNG back to FITS?

Yes, CocoConvert supports MNG to FITS conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.

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ImageMagick 7.1 (locked policy.xml)libheif 1.xlibjxl-tools 0.11.xLibRaw / dcraw_emu 0.21.xSharp 0.34.x (Node)

Versions are pinned in our worker Dockerfile and re-built via CI on every change.