Free · in your browser

Compress an image to 100KB.

Drop a JPG, PNG, WebP, or HEIC and the tool auto-searches the quality, and downscales if needed, to land just under 100KB. Perfect for ID uploads and forms that cap the file size. No upload, no signup, no watermark.

Full compressor (any size) →Resize dimensions instead →
  • 100% browser
  • Files never leave your device
  • No signup, no caps
  • GDPR & CCPA friendly
Image Compressor

Drop a photo to compress

JPG, PNG, WebP, AVIF, or HEIC. Pick a format and quality; the live preview shows the recompressed file and exact bytes saved.

What's in this tool

Hit the 100KB limit without the guesswork.

Browser-side image compression that auto-targets 100KB. Exact result size, JPEG or WebP, no upload, no watermark.

Automatic target search

The tool searches quality and downscales as needed to land just under 100KB. No trial and error.

Exact result size

See the final byte size before you download, so you know it fits the upload limit.

Built for form uploads

Made for ID portals, exam forms, and government sites that cap attachments at 100KB.

JPEG or WebP

JPEG for maximum compatibility, WebP for a slightly smaller file when allowed.

Works with HEIC

iPhone HEIC photos are decoded in the browser first, then compressed.

No upload, no signup

Everything runs in your browser. Files never leave your device. No accounts, no watermark.

FAQ

Common questions about compressing to 100KB.

How do I compress an image to 100KB?
Drop the image (JPG, PNG, WebP, or HEIC) onto the tool. It automatically searches the quality, and downscales the dimensions if needed, to land just under 100KB. You see the exact result size, then hit Download. No upload, no signup.
Will the image still be usable at 100KB?
Yes, for the common use case. The tool keeps as much quality as the target allows: a smaller target downscales and compresses a photo more, a larger target keeps more detail. It is made for ID uploads, exam forms, and portals that cap attachments at a specific size like 100KB.
Does my image upload anywhere?
No. The image is compressed entirely on your device using canvas. Nothing uploads, nothing is logged. Close the tab and the file is gone.
Which format gives the smallest file at 100KB?
JPEG hits small byte targets most reliably and is accepted by almost every form. WebP can be slightly smaller at the same quality, but pick JPEG if the upload portal does not list WebP as allowed.
What if my photo cannot reach 100KB?
Very large or detailed images may not compress to 100KB without becoming unusable. The tool will show the smallest size it could reach so you know. In that case try a slightly higher target or crop the image first.
Is it really free with no watermark?
Yes. No accounts, no daily caps, no watermark. Everything runs in your browser.
Can I compress iPhone HEIC photos to 100KB?
Yes. HEIC images are decoded in the browser first, then compressed to the target. Output is JPEG or WebP.
Related reading

Photo guides on formats and metadata.

Capture-time alternative

Need the photo to prove where and when, even after compression?

Compressing for a form strips detail and metadata. The iOS app renders the date, GPS, and address onto the visible image at the shutter, so the proof survives even heavy compression.

Download on theApp Store
iOS 15.6+ · iPhone, iPad, Mac & Vision Pro
  • Visible date, time, GPS, and address burned into the image
  • Survives compression, upload, and screenshot
  • Atomic (network-synced) timestamps
  • JPEG output ready to compress or share