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
您是否曾遇到这样的情况：手机里珍藏的HEIC照片，想要分享给朋友，或者用专业软件处理时却发现打不开？又或者，您是天文爱好者，需要将这些珍贵图像转换为FITS格式，以便进行更深层次的科学分析与数据处理？别担心，我们理解您的需求。HEIC格式因其高效存储在苹果设备上广受欢迎，但其兼容性在非苹果生态系统中常受限制。而FITS作为天文学界通用的图像数据标准，承载着星辰大海的奥秘。现在，我们为您提供一个流畅、可靠的解决方案，让HEIC与FITS之间的转换不再是难题，轻松打通您的数字图像工作流，让每一份精彩都能被准确解读与分享。
- 微信分享不失真
- 天文图像深度处理
- 游戏素材跨平台导入
在大中华区，由于微信等社交应用的普及，HEIC格式在分享时常遇到兼容性问题，转换为FITS虽不常见，但在特定科研领域（如天文社群）需求日益增长。
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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