What you get for a .HSF file
We don't have a dedicated viewer for this format, so we identify and inspect it instead — honestly, only what can be read from the file.
Drop your .HSF file
Choose it or drag it in. It's read right here in your browser.
We identify it
We read the magic bytes to tell what the file really is, its MIME type, and whether the name matches the contents.
See the details
Any metadata we can extract (dimensions, EXIF/GPS, document author and dates), a hex view, plus readable text and strings found inside.
What is a .HSF file?
Plain text that programs, servers and people write every day.
The .HSF extension represents a HOOPS Stream Format file, which is a data format developed by Tech Soft 3D. These files are categorized as CAD files and are used for storing 3D visualization data. They are typically opened and managed using software such as HOOPS and SolidWorks.
Programs that open .HSF files
| Full name | HOOPS Stream File |
|---|---|
| Developer | Tech Soft 3D |
| First released | late 1990s (HOOPS 3.x era, Tech Soft 3D) |
| Category | Text & Code |
| MIME type | application/octet-stream |
| Signature | 48 53 46 20 56 "HSF V" (5 bytes at offset 0) |
Related viewers
Every viewer is free to use.
Frequently asked questions
Is my .HSF file uploaded anywhere?
No. The file is read and highlighted for you.
Why do some characters look wrong (é, ł)?
That usually means the file was saved in one encoding and opened in another. We detect UTF-8, UTF-16 and the Windows-1250/1252 code pages automatically and show which one was used.
Can it handle huge log files?
Yes, up to 50 MB. Only the lines on screen are drawn, so scrolling stays smooth. Syntax colours are switched off for files over 1.5 MB to keep things fast.
How do the log level filters work?
We find levels like ERROR, WARN, INFO and DEBUG on each line. Lines without a level, such as stack traces, stay with the entry above them, so filtering to errors keeps the full trace.
Can I edit the file?
This is a viewer. To change code, download it or copy it into your editor. Converting encodings and line endings is planned.
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