Why convert TMP to JPG?
Photo editors and camera apps often write images to a .tmp file during saving and rename it on completion; a crash or interrupted save leaves the .tmp behind. The .tmp naming convention carries no format information - the file is entirely whatever the creating program wrote. If the first bytes match the JPEG signature, the file is already a .jpg and only needs renaming.
How to convert TMP to JPG
Notepad++ FREE
Open the .tmp in Notepad++ and check whether the first characters or hex pane shows FF D8 FF; if so, copy the file, rename the copy's extension to .jpg, and open it in any image viewer.
GIMP FREE
If the renamed .jpg opens as a truncated or partial image after an interrupted save, GIMP can often display and save the portion of the image that was written.
About these formats
.TMP
Temporary File
A TMP file is a temporary scratch file a program or the operating system creates to hold working data, such as autosave snapshots, installer payloads, or partial downloads. There is no…
Open .TMP details →
.JPG
JPEG Image
A JPG (also .jpeg) is a compressed photo or image in the JPEG format, standardized in 1992. Every operating system opens it natively - double-click and Windows Photos, macOS Preview, or…
Open .JPG details →Quality & what to watch
- JPEG files always start with bytes
FF D8 FF; a file lacking this signature is not a JPEG and cannot become one by renaming. - Renaming preserves the exact bytes - nothing is re-encoded and image quality is identical to the original.
- If the save was interrupted mid-write, the renamed
.jpgmay be truncated; GIMP and IrfanView can sometimes display the portion that was written.
Frequently asked questions
Is there a dedicated TMP-to-JPG converter?
What if the first bytes are not `FF D8 FF`?
89 50 4E 47 for PNG, %PDF for PDF) to identify the actual content and rename accordingly.
