Lumli
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Browser based image tools
Edit, enhance, and prepare images without sending them away.
Lumli brings your favorite image tools into one private, browser-native workspace
AI image upscaler
Sharper detail without sending images away.
Preview 4x UltraScale quality for portraits, product shots, and social visuals directly in your browser.
4x detail
Bring small images closer to publish-ready size.
Local workflow
Prepare and preview without an upload step.
Clean edges
Recover crisp texture for everyday assets.
4x UltraScale demo
Drag to compare the original and enhanced detail.
Work without waiting on uploads
Resize, compress, convert, and edit supported files locally. Common tasks start quickly because the browser can begin working as soon as your file is selected.
Your files stay on your device
Lumli reads selected images in the browser and processes them locally for the core editing flow. There is no account gate and no upload step before you can start.
Common formats, one workspace
Bring in HEIC, AVIF, WebP, PNG, and JPEG files, then move between cleanup, compression, resizing, conversion, palettes, QR, and PDF utilities.
Image compressor
Smaller files. Same visual punch.
Compress JPG, PNG, WebP, AVIF, and HEIC images locally for faster sharing and lighter pages.
Local compression
Your image stays in the browser.
Smart quality
Reduce weight without obvious blur.
Fast exports
Download optimized images instantly.
Compression demo
Can you spot the quality difference?
Same dimensions, much smaller file. Drag the slider to compare the original image with a locally compressed version.
AI background remover
Remove backgrounds. Export transparent PNGs.
Create clean cutouts for portraits, products, and social assets. Everything runs locally in your browser.
Private cutouts
Runs locally, without an upload step.
Transparent exports
Save PNGs ready for new backgrounds.
Detail aware
Keeps hair and soft edges usable.
Remove BG demo
Drag to reveal the cutout.
Original on the left, transparent PNG on the checkerboard.
Frequently Asked Questions
Everything you need to know about Lumli web tools
Can I use Lumli offline without an internet connection?
Yes. Once loaded, Lumli runs directly in your browser and can work offline for supported features. You can also install it on your device for easier access.
Do I need to install Lumli, or can I use it directly in my browser?
No installation is required. You can use Lumli directly in your browser on both desktop and mobile. If you want quicker access, you can also install it like a web app, but it is optional.
Are my images uploaded to a server or stored anywhere?
No. Lumli processes everything locally in your browser. Your images are never uploaded, stored, or shared anywhere.
Can I upload and process Apple HEIC images?
Yes. Lumli supports Apple's HEIC format as an input across all toolsets. You can upload HEIC images straight from your iPhone or Mac and convert them into JPG, PNG, WebP, AVIF, or vector SVG layouts where supported.
Is there a file size limit for uploading images?
There is no strict file size limit. Since Lumli processes everything locally using your device's hardware, you can handle large, high resolution images. The performance depends entirely on your device.
What image formats are supported?
Lumli supports PNG, JPG, JPEG, WebP, AVIF, Apple HEIC inputs, and SVG layouts.
Why is Lumli completely free to use?
Most processing happens in the browser, which keeps server costs low. That makes it easier to keep the everyday tools free. If you like it, you can support us by buying a coffee.
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