Free Online Image Compressor

Reduce image file size for sharing and uploads. Compress JPG, PNG, WebP, GIF, SVG and BMP images, or choose a KB target for a specific upload limit.

upload icon

or, drag and drop images here

Your files remain private and will be processed locally in your browser.

Fast Compression
Batch-Compress
Browser-Based
100% Secure

How to Compress images in 3 steps

Compress images online for website pages, email attachments and uploads that need smaller files. HiCompress brings photo and graphics compression into your browser, with quality choices for balancing image detail and file size. You can work on one picture or a whole collection, then download the finished images individually or together. Single-image and batch compression are free, with no desktop software to install.

Select Images

1Select Images

Click “Select Images” or drag your photos and graphics into the upload area. You can add several images at once.

Start compression

2Start compression

Under Image Quality, choose High to keep more detail, Medium to balance quality and file size, or Low for stronger compression. For finer control, select Customize and adjust the quality slider. Then click “Start Compression”.

Download your images

3Download your images

Save each compressed picture, or download the completed batch as a ZIP.

Image Compression Before and After

See how the same harbor scene looks before and after JPG compression. Drag the slider across the roof tiles, stone walls, and water to compare the details.

Original JPG of a Mediterranean harbor with terracotta rooftops and blue waterOriginal (431.2 KB)
The same harbor scene after JPG compression with the Medium presetCompressed (101.3 KB)

76.5% smaller with the Medium preset

HiCompress reduced this JPG from 431.2 KB to 101.3 KB while keeping it at 1024 × 576 pixels. The space you save depends on the source image and the quality setting.

Image compression for photos, graphics and animations

A smaller image is easier to send, upload and include on a web page. HiCompress brings format-specific compression and custom file-size targets together, so a photograph, transparent logo or GIF can follow the route that suits it.

Different images, different compression needs

Different images, different compression needs

A JPEG photo, a PNG screenshot and an SVG icon do not store their detail in the same way. Dedicated format tools make room for those differences, from photo quality to transparent graphics and vector artwork.

A whole set of pictures, ready to share

A whole set of pictures, ready to share

A product listing or photo collection rarely stops at one image. Batch compression handles several pictures together, with individual downloads or a ZIP to bring the finished files into the next part of your project.

Smaller uploads with a specific KB limit

Smaller uploads with a specific KB limit

Some upload fields give a maximum file size instead of a quality preference. The custom KB compressor accepts JPG, JPEG, PNG and WebP, with preset pages for common limits and a custom target for other allowances.

Quality choices for different priorities

Quality choices for different priorities

Lossy compression can trade some image information for a smaller file. Lossless options preserve decoded pixels where supported. Those choices serve different needs: a compact attachment and artwork that needs its original pixels.

Image compression: common questions

Which image formats can I compress?
JPG, JPEG, PNG, WebP, GIF and BMP have image-compression tools. SVG has a separate vector optimizer. The custom KB compressor accepts JPG, JPEG, PNG and WebP.
Can I choose a maximum image file size?
Yes. Use the custom KB compressor for a target size. The result can be below the target; this is not a file-padding tool for producing an exact byte count.
Will every image become smaller without losing quality?
No. Savings depend on the source and compression method. Lossy processing can change detail, and an already optimized file may have little left to reduce.
How can I reduce the size of a video?
Hicompress is designed for images. If you also need to shrink a video, try the video compressor. It can help you make MP4, MOV, WebM, AVI, MKV, and M4V files smaller for sharing or storage.
Can I batch compress images for free?
Yes. Single-image and batch processing are free, as are individual and ZIP downloads. Images are processed locally in your browser.

Tools shape HiCompress Image compression Features

Photo and graphic workflows

Format-specific tools address photographs, screenshots, vector artwork and animations.

A target when one is required

KB tools suit upload fields with an explicit per-image file-size allowance.

Useful for image collections

Batch downloads keep product views, photos or graphics together.

Quality with a purpose

Image detail and file size have different priorities in different projects.

Free from start to download

Compression and access to the resulting files do not require payment.

Images stay on your device

Compression takes place in the browser without uploading images for processing.

Rate this tool
4.9 / 5,330

You need to use at least 1 file to provide feedback