How to Convert HEIC to FITS — Quick & Free
Fast, instant HEIC to FITS conversion. No signup required. Just drop your .heic file and get .fits in seconds.
Batch Settings
お手持ちのHEIC画像、特にiPhoneで撮影された美しい写真や、デザインの現場でやり取りされる視覚資産を、天文学や科学分野で広く用いられるFITS形式へと変換する際、その過程でデータの整合性を保ちつつ、専門的な要件を満たすことは時に複雑に感じられるかもしれません。当ツールは、そうした変換作業を簡潔かつ正確に行うためのものです。画質の劣化を最小限に抑え、メタデータも適切に引き継ぐことで、変換後のFITSファイルが元のHEIC画像の意図を忠実に反映するよう設計されています。煩雑な設定は不要で、直感的な操作性により、どなたでもスムーズにご利用いただけます。大切な画像データを次のステージへと橋渡しするお手伝いをいたします。
- 学会発表資料の画像準備
- 研究機関へのデータ提供
- デジタルアーカイブ構築
日本では、特に高解像度の天体画像を扱う研究機関や、科学教育の現場でFITS形式の需要が高まっています。HEICからの変換は、iPhoneの普及と相まって、より手軽なデータ収集手段として注目されています。
About HEIC to FITS Conversion
Short answer: yes, you can convert HEIC to FITS online for free, and quality is well preserved with the right settings. Just upload your .heic file to CocoConvert, pick FITS as the output, and click Convert. The whole process takes seconds.
Now for the details. HEIC (High Efficiency Image Container) is Apple's format for iPhone photos, offering twice the compression of JPEG. FITS is a widely used file format. Converting between these two formats lets you convert between formats quickly.
Your HEIC file is decoded and re-encoded as FITS. Converting HEIC to FITS 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 HEIC to FITS
- 1
1. Upload HEIC
Drop your .heic file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select FITS
Choose .fits from the output dropdown. Settings are pre-configured for best results.
- 3
3. Convert
One click. The server handles all the heavy lifting using FFmpeg and Sharp.
- 4
4. Download
Your .fits file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert HEIC to FITS
Your HEIC file is decoded and re-encoded as FITS.
Your HEIC file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in FITS format
The converted file is ready for download
Format Comparison
HEIC
.heic file
| Extension | .heic |
| MIME Type | image/heic |
| Category | Image |
FITS
.fits file
| Extension | .fits |
| MIME Type | image/fits |
| Category | Image |
Should You Convert HEIC to FITS?
When to Convert
- ✓When you need a FITS file
Frequently Asked Questions
Is HEIC to FITS conversion free?
Yes. CocoConvert offers free HEIC to FITS 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 HEIC to FITS 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 HEIC file and the converted FITS file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting HEIC to FITS lose quality?
Converting HEIC to FITS maintains high quality with CocoConvert's optimised encoder settings.
Can I convert FITS back to HEIC?
Yes, CocoConvert supports FITS to HEIC conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
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