Shrink Image File Sizes Without Losing Quality — Batch Compress in Your Browser

Large images slow down websites, bounce off email attachment limits, and eat mobile data. Choppy solves this: drop your images, set a compression level, and get noticeably smaller files that still look great — all without sending a single pixel to a server.

Why Image Size Matters

An uncompressed photo from a modern smartphone can be 8–15 MB. Multiply that by a gallery of 20 images on a website and you have 200 MB of data that every visitor has to download — including people on slow connections and mobile data plans.

Properly compressed images routinely come in at 70–90% smaller with no visible quality difference at normal viewing sizes. That means faster page loads, lower hosting costs, and better scores on performance audits like Google's Core Web Vitals.

The sweet spot: For most web images, a quality setting around 80–85% produces files roughly 60–75% smaller than the original, with differences that are invisible unless you zoom in and look carefully.

How It Works

Drop your images and use the compression strength slider to set how aggressively Choppy should compress. At higher quality settings the file reduction is modest but the output is virtually indistinguishable from the original. At lower settings you get maximum size reduction — useful for thumbnails and previews where every kilobyte counts.

Choppy shows you before and after file sizes for each image so you can see exactly how much space you are saving. Supported input formats include JPEG, PNG, WebP, AVIF, GIF, and BMP.

Use Cases

  • Websites and blogs — Compress portfolio images, blog post photos, and hero banners before uploading. Faster sites rank better and keep visitors longer.
  • Email attachments — Most email providers cap attachments at 10–25 MB. Compress a batch of photos before sending to stay under the limit.
  • Social media — Platforms re-compress uploads, often with ugly artifacts. Pre-compressing at a controlled quality gives you a better result than letting the platform choose.
  • WordPress and CMS — Compress images before uploading to keep your media library lean and your pages fast without relying on slow server-side plugins.
  • Client deliveries — Send proofs and previews as compressed files, reserving the full originals for the final handoff.

How to Compress Images — Step by Step

  1. Open pixl.pet/compressor/.
  2. Drag and drop your image files onto the upload zone. You can drop a single file or dozens at once.
  3. Adjust the compression strength slider — higher quality means a larger file, lower quality means more aggressive compression.
  4. Click Compress to process all files.
  5. Review the before and after file sizes for each image. Adjust and re-compress if needed.
  6. Download files individually or click Download All (ZIP) to grab everything at once.

Your Images Stay on Your Device

Everything happens in your browser. No files are uploaded, no image data is sent to a server, and nothing is logged. Choppy works offline after the first visit — compress images on a train, in a meeting, or anywhere without a reliable connection.

This also means there are no file size restrictions imposed by upload bandwidth. Drop as many large images as you like — your device's memory is the only limit.

What's Coming Next

  • Target file size mode — tell Choppy how big you want the output file and it will find the right quality setting automatically.
  • Resize and compress together — set target dimensions and compression in one step.
  • One-click WebP conversion — convert and compress to WebP simultaneously for the best web results.

Combine Choppy with Morpho for a two-step workflow: convert to WebP first, then compress to hit your target size. Also check out Snip to crop images before compressing, and Axol to remove backgrounds before optimizing product shots.

compress Try Image Compressor →