Image Compressor
Reduce image file sizes instantly — free, private, and right in your browser.
Drop your image here
Supports JPEG, PNG, WebP, AVIF, GIF, HEIC, and more
Why Our Image Compressor Stands Out
Serious compression with zero compromises — built for creators, developers, and teams who ship images every day.
Lightning-Fast Compression
WebAssembly ImageMagick compresses even large photos in milliseconds. No server round-trip, no progress bars — just results.
100% Private — Never Uploaded
Every file stays in your browser. We don't see, log, or store your images. Safe for sensitive, NDA, or client work.
Lossless & Lossy Control
Fine-tune the quality slider from visually identical down to maximum savings. Instant live preview before you commit.
Every Major Format
JPEG, PNG, WebP, AVIF, GIF, and HEIC in — any of them out. Convert and compress in one pass.
Side-by-Side Preview
See the compressed result next to the original before you download. Zoom, pan, and verify every pixel.
No File Size Limits
Drop files of any size — no paywall, no watermark, no cap. Your device's memory is the only limit.
Who Uses Our Image Compressor
From personal blogs to SaaS dashboards — anywhere images weigh down the experience, compression wins.
Web & Blog Performance
Shrink hero images, thumbnails, and gallery assets to improve Core Web Vitals and keep visitors from bouncing.
- Cut Largest Contentful Paint by 2–4×
- Shrink responsive srcset sizes in bulk
- Boost Lighthouse performance scores
Email & Messaging
Keep attachments under the 25 MB caps of Gmail, Outlook, and other providers without manually cropping or downsizing.
- Fit inside Gmail 25 MB attachment limits
- Speed up Slack and Teams uploads
- Compress receipts and scans on the fly
Storage & Archiving
Reclaim gigabytes on phones, laptops, and cloud drives by compressing old photos without losing noticeable detail.
- Shrink phone camera rolls at AVIF quality
- Cut Dropbox and Drive storage bills
- Prepare photo archives for long-term backup
How to Compress an Image in 3 Steps
Upload your image by dragging and dropping it onto the tool, or click to select a file from your device.
Adjust the quality slider and choose an output format — JPEG, PNG, WebP, AVIF, GIF, or keep the original.
Download your compressed image with a single click. No account needed, no files stored.
Explore More Tools
Discover other free tools that work great alongside this one
Image Resizer
Resize images to exact dimensions
Background Remover
Remove backgrounds with AI precision
Image Converter
Convert between 30+ image formats
PNG to WebP
Smaller files, same quality for web
JPG to PNG
Convert JPG to lossless PNG format
HEIC to JPG
Convert iPhone photos to universal JPG
Frequently Asked Questions
Answers to the most common questions about compressing images in the browser.
Does compressing images reduce their quality?
It depends on the format and the quality level you choose. JPEG and WebP use lossy compression, which reduces file size by discarding some image data. At quality 75–85, the difference is barely visible. PNG uses lossless compression so quality is always preserved.
Are my images uploaded to a server?
No. All compression happens entirely in your browser using WebAssembly-powered ImageMagick. Your files never leave your device, making this tool completely private and secure.
Which output format gives the smallest file size?
AVIF and WebP typically achieve the best compression for photographs and graphics. For broad compatibility, WebP is a solid choice. JPEG works well for photos when legacy support is needed. For images with transparency or sharp edges (logos, screenshots), PNG is preferred.
Is there a file size limit?
There is no hard limit imposed by the tool. However, very large images (above 20 MB) may take a moment to process depending on your device. Your browser handles everything locally, so performance varies by device.