Convert & compress files.
Right in your browser.
Convert, compress, crop, and resize images to exact KB targets or pixel dimensions. PixelKit runs 100% on your device, so your files never leave your browser.
No files selected yet. Drag & drop photos, documents or click browse above.
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No uploads
Files never leave your device
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No accounts
No signup, no email
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No limits
Unlimited files, always free
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Open stack
Built on Astro + vanilla TS
Popular conversions
One-click presets for web, government forms & social media
Why PixelKit
Engineered for complete on-device privacy, precision, and speed
Private by design
Files are processed locally with Web Workers and Canvas API. Nothing is uploaded, stored, or logged anywhere.
Exact KB targets
Binary-search compression hits your target — 50KB, 100KB, 200KB — with maximum visual quality at that target size.
Crop & Aspect Studio
Interactive framing with 1:1 square, 4:5 portrait, 16:9 wide, and custom ratios. Crop photos for avatars, stories, and uploads with live preview.
Scale & Resize Engine
Scale resolution proportionally or enter exact pixel dimensions with built-in Passport ID, Web HD, and avatar presets.
No signup, no watermark
100% free forever. No accounts, no intrusive ads, and no artificial restrictions. Just fast conversions.
Works offline
Once loaded, PixelKit keeps functioning even without an internet connection — all engines are cached locally.
How it works
Fast, automated 3-step conversion running 100% in your browser
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Drop your files
Drag any photo or document into the drop zone, or browse. Zero signup required — the tool boots immediately.
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Choose target size
Select output format and optional exact KB limit. PixelKit smartly compresses files to hit your exact size target.
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Download instantly
Download processed files straight from your device memory. Since nothing leaves your browser, there is zero wait time.