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Pricing Blog

ITHMB to JPG

Trying to open a ITHMB as JPG? Here's the honest answer — and how to get a real image.

We can't convert ITHMB to JPG — an ITHMB file can't be opened by any converter. Here's why, and what actually works.

Why ITHMB to JPG isn't possible

1

ITHMB can't be decoded

ITHMB is Apple's private iPod/iPhone thumbnail-cache format. It isn't a standard image file — it's an internal database of many tiny preview images packed together with no public specification, so no image library or converter can decode it.

2

There's no picture to convert

Because nothing can read the ITHMB container, there's no image data a converter can extract and re-save as JPG. Any tool that claims to do it would just fail.

3

Get the original photos instead

The real photos an ITHMB cache was built from live in your photo library or a backup. Export those (they'll be JPG or HEIC), then convert them — that's a conversion that works.

What you can do instead

Convert ITHMB to PNG

Lossless with transparency — perfect for graphics, logos and screenshots.

ITHMB → PNG

Convert ITHMB to TIFF

Lossless and uncompressed — ideal for editing, archiving and print.

ITHMB → TIFF
Private — never stored Fast & secure Unlimited & free

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Format details

JPG (JPEG) is a lossy raster format that compresses photographs into small files by discarding detail the eye barely notices — the most widely used photo format on the web and in cameras.

Full nameJoint Photographic Experts Group
Developed byJPEG Group
Released1992
Extension.jpg
MIME typeimage/jpeg
TransparencyNo

JPG opens in every browser, image viewer and editor with no special software.

Frequently asked questions

No. ITHMB is a proprietary thumbnail-cache blob that no image library can decode, so there's nothing to convert. Export the original photos and convert those instead.

ITHMB files aren't meant to be opened directly. Recover the original images from your device's photo library or an iTunes/Finder backup, then work with those.

Once you have the real photos (JPG or HEIC), they convert cleanly to PNG or TIFF — free, no sign-up, no watermark.

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