File type / text
.conf
Human-readable text or code. Easy to inspect and version-control.
Best for: Source code, configuration files, logs, and documentation that should stay transparent to collaborators.
Type family
text
Subtype
plain
Default handling
Inline-capable
Handling verdict
Modern browsers can usually display this media type without downloading it first.
The media type is text-like, but this record does not declare a charset.
HTTP content encoding can usually reduce this format further.
Text files rarely carry threats, but scripts can execute commands. Review before running.
HTTP response headers
Content-Type: text/plain
Content-Disposition: inline; filename="example.conf"
X-Content-Type-Options: nosniffThe MIME type describes the payload, Content-Disposition controls whether the browser previews or saves it, and nosniff prevents the browser from silently substituting a guessed type.
HTML file input
accept=".conf,.txt,.text,.def,.list,.log,.in,.ini,text/plain"Use this value on <input type="file"> to steer the picker toward .conf, its known aliases, and files reporting text/plain. It improves selection, but it is not validation—check the bytes again after upload.
Registry ledger
declared valuesMIME type
text/plain
Registry source
iana
Character set
Not declared
Compressible
Yes
Known aliases
.txt, .text, .def, .list, .log, .in, .ini
Same MIME type
.ini, .log, .txt
How to work with .conf
operational notesOpen it with the format-aware tool first
Start with VS Code, Sublime Text, Any plain-text viewer. Normalize line endings and explicit UTF encodings when sharing across operating systems. If the file came from someone else, keep the original untouched and work on a copy so a failed conversion cannot destroy the only source.
Safety note
Text files rarely carry threats, but scripts can execute commands. Review before running.