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View a CDM file online, free

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

Drop your .CDM file here

Opens your .CDM file right here.

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Up to 50 MB · 160+ text and code extensions
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100% free. No limits on use

What you get for a .CDM 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 .CDM 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 .CDM file?

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

A .CDM file is a disk image created by NTI software. It contains a complete copy of the data from a CD or DVD, stored in a format developed by NTI. These files are typically opened and managed using NTI Media Maker or CD-Maker.

Programs that open .CDM files

Windows
NTI Media Maker 9, NTI Media Maker Express
.CDM format details
Full nameNTI CD-Maker Disc Image
DeveloperNTI Corporation
First releasedcirca late 1990s (NTI CD-Maker era)
CategoryText & Code
MIME typeapplication/octet-stream
Signature0E 4E 54 49 5F 43 44 4C 41 59 4F 55 54 56 NTI_CDLAYOUTV (preceded by a 0x0E byte at offset 0)

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Frequently asked questions

Is my .CDM 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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