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Image Compressor

Large photos slow websites and bounce off email limits. This compressor shrinks images locally with a quality control and a target maximum size in megabytes—useful before you attach, upload, or publish.

Last reviewed July 30, 2026.

Drop an image to compress

Processed in your browser

When to use this

  • Fitting photos under email or portal size caps
  • Preparing images for a webpage without a heavy media library
  • Shrinking iPhone photos after converting HEIC to JPG

Practical target

For many email attachments, aiming near 1 MB per photo is a workable starting point. Lower quality or a smaller max size if the first pass is still too large.

Common mistakes

  • Crushing quality so hard that text in screenshots becomes unreadable
  • Compressing a tiny icon that was already only a few kilobytes
  • Uploading originals to a third party when local compression would do

How it works

Compression runs in your browser (including optional HEIC conversion first). You set an initial quality and a max size in MB; the library iteratively aims under that ceiling when possible.

How to use

  1. Drop an image.
  2. Set quality and target max size in MB.
  3. Download the compressed file and compare the reported sizes.

Related on this site

  • Image Resizer — Resize images to exact pixels or presets for social and listings.
  • Compress PDF — Reduce PDF size for email by stripping excess data — processed locally.

FAQ

Is my photo uploaded?

No. Compression runs in your browser.

Does PNG stay lossless?

Output depends on the compression path and settings; for maximum control over photos, JPG is usually the practical choice.

What about HEIC?

Modern browsers can convert HEIC first, then compress. If conversion fails, export JPG from Photos and retry.

Can I batch dozens of images?

This UI focuses on one image at a time for clarity and memory safety on phones.

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Resize Image

Resize images to exact pixels or presets for social and listings.

Convert Image

Convert between JPG, PNG, and WebP — including HEIC from iPhone when supported.

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