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
IMAGE
FITS Converter
Convert FITS files with ConverterHQ using workflows tuned for image compatibility, predictable output, and practical downstream use.
Quality and compatibility profile
Core technical and historical facts used for conversion quality, compatibility decisions, and SEO uniqueness.
| Feature | Fact sheet |
|---|---|
| Category | IMAGE |
| Extensions | fits |
| MIME types | image/fits |
| Created | 1981 |
| Inventor | NASA / astronomical data community |
| Status | active |
| Compression type | lossy |
| Animation support | ❌ |
| Transparency support | ❌ |
| Supports Quality | ❌ |
| Supports Lossless | ✅ |
| Supports Metadata | ✅ |
| Supports Multiple Frames | ❌ |
| Color Depth | 24-bit |
| Container | FITS container |
| Layer support | ❌ |
| Vector scaling | ❌ |
| Reflowable text | ❌ |
| Multitrack content | ❌ |
| Camera raw data | ❌ |
| HDR content | ❌ |
| Structured data | ❌ |
| Streaming delivery | ❌ |
About this format
FITS format context
Format: FITS
Overview
FITS matters because astronomy and related scientific imaging need a format that treats images as scientific data products with headers, coordinate metadata, and analysis context rather than as ordinary pictures for display.
Scientific imaging workflows needed a standard way to exchange image arrays and associated metadata for analysis, observation, and long-term archive use.
FITS remains central in astronomy, astrophysics, and other specialist scientific-imaging domains where metadata and analysis compatibility are as important as the image itself.
FITS is closely associated with NASA / IAU FITS ecosystem.
FITS is usually selected for workflows that center on capture ingest, editing, web or print delivery.
Typical Workflows
- capture ingest
- editing
- web or print delivery
Common Software
- astronomy tools
- NASA/IAU workflows
- scientific imaging libraries
Strengths
- Strong fit for scientific metadata-rich imaging.
- Long-lived standard in astronomy and related research.
- Supports workflows where data interpretation matters more than casual viewing.
Limitations
- Not designed as a mainstream consumer image format.
- Validation needs domain-aware tools, not just generic viewers.
Related Formats
- EXR
- TIFF
- DCM
Interesting Context
FITS became a durable scientific standard because observatories, spacecraft, and analysis tools needed a stable interchange format that outlived individual instruments and software stacks.
FITS belongs to astronomy, observatories, remote sensing, scientific instrumentation, and research software that relies on metadata-rich image arrays.
It is foundational in astrophotography and scientific archives.
Status: active. Introduced: 1981. Invented by: NASA / astronomical data community. Stewarded by: NASA / IAU FITS ecosystem.
How FITS fits into workflows
Workflow role: FITS
Convert to FITS when preserving scientific image data, observation metadata, or instrument-derived captures for astronomy and research workflows.
It is the right target when measurement context matters as much as the picture itself.
History of FITS
Format history: FITS
FITS became a durable scientific standard because observatories, spacecraft, and analysis tools needed a stable interchange format that outlived individual instruments and software stacks.
Original problem: Scientific imaging workflows needed a standard way to exchange image arrays and associated metadata for analysis, observation, and long-term archive use.
Why FITS still matters
Current role: FITS
FITS matters because astronomy and related scientific imaging need a format that treats images as scientific data products with headers, coordinate metadata, and analysis context rather than as ordinary pictures for display.
Modern role: FITS remains central in astronomy, astrophysics, and other specialist scientific-imaging domains where metadata and analysis compatibility are as important as the image itself.
When to use FITS
- capture ingest
- editing
- web or print delivery
Advantages of FITS
- Strong fit for scientific metadata-rich imaging.
- Long-lived standard in astronomy and related research.
- Supports workflows where data interpretation matters more than casual viewing.
Limitations of FITS
- Not designed as a mainstream consumer image format.
- Validation needs domain-aware tools, not just generic viewers.
Formats related to FITS
FITS technical profile
| Feature | Fact sheet |
|---|---|
| Category | image |
| Extensions | .fits |
| MIME types | image/fits |
| Created year | 1981 |
| Inventor | NASA / astronomical data community |
| Status | active |
| supports_animation | False |
| supports_transparency | False |
| supports_quality | False |
| supports_lossless | True |
| supports_metadata | True |
| supports_multiple_frames | False |
| compression_type | lossy |
| color_depth | 24-bit |
| container | FITS container |
| supports_layers | False |
| supports_vector_scaling | False |
| supports_reflowable_text | False |
| supports_multitrack | False |
| camera_raw | False |
| hdr_capable | False |
| structured_data_capable | False |
| streaming_ready | False |
| sources | {'url': 'https://heasarc.gsfc.nasa.gov/docs/heasarc/fits.html', 'title': 'Flexible Image Transport System (FITS)', 'relevance': 'Official specification', 'source_type': 'official'}, {'url': 'https://fits.gsfc.nasa.gov/fits_resources.html', 'title': 'Reference Documentation', 'relevance': 'Technical reference', 'source_type': 'reference'} |
FITS quality and compatibility
Format profile: FITS
Size profile: medium. Quality profile: depends. Editability profile: moderate. Compatibility profile: broad. Archival profile: moderate. Metadata profile: moderate. Delivery profile: strong. Workflow profile: delivery. Status: active.
Software that opens FITS
- astronomy tools
- NASA/IAU workflows
- scientific imaging libraries
Conversion options
FAQs
Q: What is FITS typically used for?
A:
FITS is commonly used for capture ingest, editing, web or print delivery.
Q: What are the advantages of FITS?
A:
FITS is broadly compatible across common software.
Q: What should I watch out for when converting FITS?
A:
Check output quality and compatibility on representative sample files.
Sources
Official specification
Technical reference