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Compress Image to 15KB

Reduce image file size to exactly 15KB

All Image Tools

How do I compress an image to 15KB?

15KB is the range most government and exam forms ask for. The tool re-encodes on a canvas and steps quality down until the file fits, reducing dimensions only if it must — a head-and-shoulders portrait typically settles near 340x260 pixels and still looks clean. Processing is local; nothing leaves the browser.

  • Sized for form and portal limits around 15KB
  • A portrait holds up at roughly 340x260 pixels
  • Detailed scenes suffer more than faces
  • Original file untouched — you download a copy

What is

Compress Image to 15KB

A browser-based compressor that re-encodes an image until it falls under 15KB, a budget that holds roughly 340x260 pixels of photographic detail.

Image Tools

Related terms

compress image15KB image limitreduce file sizeJPEG quality

Frequently Asked Questions

Yes, comfortably.

Form photographs are small and face-centred, which compresses well. At 15KB you have room for about 340x260 pixels — more than most portals display.

Yes.

Skin and hair compress efficiently. What degrades first is fine background texture, which no form checker looks at.

Resize first.

Crop and resize to the required pixel size before compressing, otherwise the tool spends the byte budget on pixels the form will discard.

No.

Compression runs on your own device using the Canvas API. There is no upload step and no server involved.

Detailed Explanation

How It Works

What Compress Image to 15KB does

Compress Image to 15KB serves the range most exam and government portals specify. It is tight enough to need care and generous enough that a portrait survives it well, usually at about 340x260 pixels.

  • About 340x260 pixels at 15KB
Technical Details

How it works

The image is decoded, drawn to an offscreen canvas and re-encoded. Quality is stepped down and measured against the 15KB ceiling on each pass; dimensions are reduced as well, because quality alone cannot reach this target on photographic content.

  • Canvas re-encoding
  • Iterates to the 15KB ceiling
Use Cases

Use cases

Application and examination forms, which commonly cap photographs near 15KB. Always take the exact figure from the official notification — portals differ and change between cycles.

  • Portraits survive; detailed scenes do not
Limitations

Limitations

Reaching 15KB means discarding roughly 273x the data in a typical 4MB phone photograph, and nothing restores it. At this budget text within an image becomes hard to read and fine texture disappears; compress from the highest-quality original you have, never from an already-compressed copy.

  • About 273x reduction from a 4MB source
Privacy & Security

Privacy

The image is decoded and re-encoded by your own browser using the Canvas API. There is no upload endpoint, so the file cannot reach a server; closing the tab discards everything.

  • 100% local
  • No upload endpoint exists