Image Compressor — Reduce File Size, Keep Quality
Compress JPG, PNG, and WEBP images directly in your browser with an adjustable quality slider. No uploads, no size limits imposed by a server.
Built for developers and creators.
PNG • JPG • WEBP • HEIC • SVG • PDF
Fast in-browser image conversion · No uploads. No tracking.
Popular conversions
Convert / Compress Images
Drag & drop or choose files. Everything runs locally in your browser.
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Upload images
Tip: you can paste screenshots with Ctrl/Cmd + V.
Supports PNG, JPG, WEBP, HEIC
Pixmizer's image compressor shrinks photos and screenshots for faster websites, smaller email attachments, and quicker uploads elsewhere — all while keeping the conversion entirely on your device. Drag in a batch of JPG, PNG, or WEBP files, dial in the quality you need, and export instantly.
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Why Pixmizer?
🔒 Private processing in-browser
⚡ Instant conversion and export
⚡ Works entirely in your browser
🖼 Works with major image formats
💻 No software installation
FAQ
Do you upload my files?
No. All processing happens locally in your browser. Files are never uploaded to any server.
Which formats are supported?
Image compression supports JPG, PNG, and WEBP. HEIC conversion lets you turn HEIC photos into JPG or PNG. PDF compression works with standard PDF files rendered locally in your browser.
Is it free?
Yes. Pixmizer is free to use. Optional donations help keep the service online and independent.
Privacy
Files are processed locally in your browser. Temporary object URLs are revoked when you remove items or leave the page.