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Compress iPhone HEIC Photo to 100KB

Convert an iPhone HEIC photo to a JPG under 100KB, all in your browser.

📁 Step 1 – Select Images (JPG, PNG, WebP, HEIC)

Step 2 – What do you want?

Compress (make smaller)Increase (make bigger)

Type the size in KB:

Advanced (optional): exact pixels or minimum KB

Many forms ask for pixels as well as KB. Leave empty if yours does not. Examples are common sizes only – always use the size your form states.

Width (px)×Height (px)

When the shape differs:Minimum KB (for ranges like 10–20 KB, Compress mode):

✅ Done! Your images are ready

By Yasir, Lahore · Last reviewed October 26, 2026

HEIC: the iPhone default

Recent iPhones save photos as HEIC, a compact format that most websites and forms cannot read. A form may simply say “invalid file”. This page converts HEIC to JPG first, then fits the JPG under 100KB, so you do it in one step without installing an app.

Example. A 2.1 MB HEIC photo from an iPhone becomes a JPG of a few MB when converted, then drops to under 100KB after compression. The first load may take a few seconds because the converter library is downloaded.

Compress HEIC to JPG without a size limit

If your form states no KB limit and you only want a smaller JPG, use the main image compressor instead. It converts HEIC to JPG and applies the quality percentage you pick, and 92% keeps the most detail. Stay on this page when the form names a limit such as 100KB.

iPhone tips

Choose the photo from the Photos app picker. If you choose Files, the iPhone sometimes converts it to JPG automatically for you.
Live Photos use the still image only.
For many pictures, read how to bulk compress photos on iPhone and the HEIC to JPG guide.

Mistakes

Sharing the photo by chat before uploading. That may change its size and format.
Using Burst or Portrait mode copies with depth data; these still convert, but may be larger before compression.

Questions about: Compress iPhone HEIC Photo to 100KB

Is my iPhone photo uploaded to convert it?

No. Conversion runs in your browser. The converter script is downloaded once, but your photo is not sent anywhere.

Why does it take a moment the first time?

The HEIC converter is loaded when you select a HEIC file.

Can I change the iPhone to take JPGs instead?

Yes: Settings, Camera, Formats, Most Compatible. New photos then save as JPG.

About the Compress iPhone HEIC Photo to 100KB tool

This page converts an iPhone HEIC photo into a JPG of 100KB or less. HEIC is the format many iPhones use, and many upload forms do not accept it. The tool converts the file and then compresses it so it fits your limit.

How to use the Compress iPhone HEIC Photo to 100KB tool

Tap “Select Images” and choose your JPG, PNG, WebP or HEIC file.
The size box is already set to 100. Change it only if your form states a different limit.
Wait a few seconds the first time. The converter loads once, and then later photos go faster.
Press the green button, check the Before and After sizes, then download the file (or the ZIP if you added several).

Related sizes and tools

100 KB Compress Image to 100KB How to Convert HEIC to JPG on Any Device How to Bulk Compress Photos on iPhone Without Any App Image Resizer to KB

Every ready-made size is listed on the Image Resizer to KB page. Prefer a percentage instead of a KB size? Use the quality-based image compressor, or read our image guides.