ToolSink

Image Compressor

Reduce image file size while keeping visual quality. Works on JPG, PNG, WebP.

What is the Image Compressor?

The Image Compressor reduces the file size of your JPG, PNG and WebP images while preserving as much visual quality as possible. Under the hood it re-encodes the image with smarter settings, strips unused metadata and, when helpful, resamples the dimensions to fit modern screen resolutions.

Every photo you take on a modern phone is 4–12 MB. That is far larger than websites, chat apps or job portals expect. Compressing images makes them faster to upload, quicker to load and cheaper to store — without a noticeable drop in quality.

ToolSink’s compressor works entirely in your browser, so your photos never leave your device. That makes it a safe pick for personal photos, ID scans and confidential product shots.

How to use the Image Compressor

  1. 1Drag your images onto the upload area (JPG, PNG or WebP).
  2. 2Adjust the quality slider — 70–85% is a good default for photos.
  3. 3Optionally set a maximum width to resize huge images at the same time.
  4. 4Click "Compress" and watch the reduced file size appear next to the original.
  5. 5Download the compressed files individually or as a ZIP archive.

Key features

  • Supports JPG, PNG and WebP
  • Adjustable quality slider (10–100%)
  • Optional dimension resizing
  • Batch compression
  • Metadata stripping to save extra bytes
  • Side-by-side before/after size comparison
  • Purely in-browser processing

Examples

Blog hero image

A 6 MB DSLR photo shrinks to 380 KB at 80% quality, cutting page load time on mobile.

Email attachment

A trip’s 20 photos totalling 200 MB compress to 15 MB, fitting inside a single Gmail message.

Portfolio thumbnails

A photographer batch-compresses 300 gallery thumbnails for a snappier portfolio site.

Why use this tool

  • Dramatically smaller files with minimal quality loss
  • Faster site load times boost SEO and conversion
  • Cheaper cloud storage and bandwidth bills
  • Runs offline once loaded
  • Batch handling saves hours of manual re-exports

Common use cases

  • Optimising images for a personal blog or WordPress site
  • Reducing upload size for job or scholarship applications
  • Sending high-quality photos on chat apps
  • Speeding up mobile page loads for e-commerce
  • Archiving trip photos without buying more storage
  • Compressing screenshots for tickets and documentation

Frequently asked questions

What is the best quality setting?

For photos, 80% is nearly indistinguishable from the original. For screenshots keep 90–95% to preserve text clarity.

Does compression lose colour accuracy?

Slightly at very low qualities. At 70%+ the shift is imperceptible on typical screens.

Can I compress the same file twice?

You can, but doubling up on lossy compression amplifies artefacts. Compress once from the original.

Do you keep EXIF data?

By default no — metadata is stripped to save bytes. Some tool versions expose a toggle to keep it.

Is there a file-count limit?

No hard limit — the practical ceiling is your device’s memory.