100% browser-based • No account required

How to Compress Images Online

Compress multiple JPG, PNG, and WebP images online. See exactly how much space you save, then download each image or a single ZIP file containing all compressed images.

What image compression does
Image compression reduces file size by optimising colour data, removing unnecessary metadata, and applying efficient encoding. This helps images load faster, use less storage, and share more easily — while keeping them visually indistinguishable in most cases.

Upload & compress

Step 1 – Choose images
No images selected yet.
  • Ideal for web, email, and performance-first websites.
  • We keep image quality high while significantly reducing file size.
  • Use this online image compressor as often as you like — it’s free.

Results & downloads

Step 2 – Save your images
Total original size
0 KB
Total compressed size
0 KB
0% smaller
Images compressed
0 / 0
Who should use an online image compressor?
Use cases
For best results, resize images first using the Image Resizer, then compress for maximum savings.

What is an online image compressor?

An online image compressor reduces the file size of your JPG, PNG or WebP images while keeping visual quality as close to the original as possible. It works by optimising colours, removing unnecessary metadata, and applying modern compression techniques. The result is a smaller file that loads faster, takes up less storage, and is easier to share or upload — without making your photos look blurry or pixelated.

Why compress your images?

Large images slow down websites, increase bounce rates, and make emails heavier than they need to be. If you publish content online, send images to clients, or manage a portfolio, compression is one of the easiest ways to improve performance. With this tool you can compress multiple images at once, preview the results, and download them instantly — all without installing software.

How to compress images online

This tool makes compression simple and transparent. Everything runs in your browser, so your files never leave your device. Whether you need a smaller JPG for a blog post or lighter PNG assets for a UI project, the process is always the same:

  1. Upload one or more images (JPG, PNG or WebP).
  2. Click Start compression and wait for the optimisation to complete.
  3. Review the original and compressed sizes, including percentage saved.
  4. Download individual files or export everything as a ZIP.

The compressor automatically finds the best balance between size and clarity, ensuring your images look clean and professional even at significantly smaller file weights.

What file types can be compressed?

The tool currently supports three commonly used web and design formats:

You can mix file types in a single session — the compressor handles each format appropriately.

Is online image compression safe?

Yes. This compressor is fully browser-based, meaning your images are processed locally on your device. They are never uploaded to a server, never stored, and never transmitted over the internet. This makes it suitable for confidential documents, client work, product photos, social media assets and internal company material.

Tips for getting the best results

Related image tools:

Who is this image compressor for?

This tool is built for simplicity and speed, making it useful for designers, developers, marketers, photographers, students, freelancers and anyone who works with digital images. Because it’s free and requires no login, it’s also handy for quick, one-off tasks when you just need to shrink a file before sending it to someone.

Frequently asked questions

Does compression reduce image quality?

A small reduction is normal, but the algorithm aims to keep images visually identical unless you zoom in very closely. You get the maximum possible space savings while maintaining clarity.

Can I compress images on mobile?

Yes — the compressor works on iPhone, iPad and Android. Because everything runs client-side, mobile compression is fast and secure.

Is there a file size limit?

You can upload multiple images up to approximately 10MB each. This keeps performance smooth while still allowing high-resolution photos.

Can I use the compressed images commercially?

Absolutely. You own all images you process here, and no watermarks or usage restrictions are added.