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View a GSP file online, free

Open and read .GSP files online. View source, logs and text with syntax highlighting, search and line numbers, free.

Drop your .GSP file here

Opens your .GSP file right here.

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Up to 50 MB · 160+ text and code extensions
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What you get for a .GSP 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.

01

Drop your .GSP file

Choose it or drag it in. It's read right here in your browser.

02

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.

03

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 .GSP file?

Plain text that programs, servers and people write every day.

A .GSP file is an IMail Error Message File developed by Ipswitch. These data files are categorized as web files and are used to store error information within the IMail Server environment. The IMail Server software is the primary program used to open and process these files.

Programs that open .GSP files

Windows
The Geometer's Sketchpad 5
macOS
The Geometer's Sketchpad 5
.GSP format details
Full nameThe Geometer's Sketchpad Document
DeveloperKey Curriculum Press (later McGraw-Hill Education)
First released1991 (The Geometer's Sketchpad v1 for Macintosh)
CategoryText & Code
MIME typeapplication/octet-stream

Related viewers

Every viewer is free to use.

Frequently asked questions

Is my .GSP 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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