Lumli
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Multi-Threaded Hardware Speed
Experience professional-grade image processing powered by browser-native WebAssembly. Lumli unlocks multi-threading to leverage your device's full CPU cores, delivering lightning-fast resizing, compression, and AI background removal instantly.
100% Secure Client-Side
Your privacy is our utmost priority. Unlike traditional online converters, Lumli runs entirely sandbox-secured inside your local browser storage. Your media files are processed locally and never touch an external server or cloud database.
Convert Formats Seamlessly
Easily switch extensions between WebP, PNG, JPEG, and SVG layouts without losing original pixel density. Our precise engine preserves transparent alpha channels, rendering perfectly crisp assets optimized for modern web architectures.
Frequently Asked Questions
Everything you need to know about Lumli web tools.
How does the browser-based background remover work?
Lumli uses advanced browser-side intelligence to isolate main subjects and remove backgrounds instantly. Since it runs completely inside your web browser via WebAssembly, it is fast, free, and guarantees absolute privacy.
Will my photos lose clarity during compression?
No. Our modern image compression algorithms intelligently balance file size reduction with high-resolution clarity, giving you perfect web-optimized results without visible pixel degradation.
Is there a file size limit for uploading images?
No, there is no strict file size limit imposed by a server. Since Lumli processes everything locally using your device's hardware, you can handle large, high-resolution images. The performance depends entirely on your device's CPU.
What image formats are supported?
We support all modern web extensions including WebP, PNG, JPEG, and SVG layouts. You can seamlessly convert between these formats while fully preserving transparent alpha channels and original pixel density.
Why is Lumli completely free to use?
Since all image processing happens directly inside your local browser via WebAssembly, we don't operate expensive cloud computing servers. This allows us to keep the tools 100% free and private forever.