Everyday tools that never upload your files
Compress hundreds of images, convert formats and generate QR codes right on your computer or phone. Faster than uploading, and your files never leave your device.
Tools
Everything runs locally with WebAssembly. No sign-up, no watermark.
Image optimizer
Compress and convert JPG, PNG, WebP and HEIC in bulk.
OpenQR code generator
QR codes for links, WhatsApp, Wi-Fi and email, with logo.
OpenUTM builder
Build consistent UTM links for your campaigns.
OpenWhatsApp link
Create a wa.me link with a pre-filled message and QR code.
OpenPDF tools
Merge, split and rotate PDFs or turn images into a PDF.
OpenSpreadsheet converter
Convert between Excel (XLSX), CSV and JSON.
OpenBackground remover
soonWhy it's different
Zero upload
Processing uses your device's CPU and memory. No file is ever sent to a server.
Big batches
Drop dozens or hundreds of images. The queue adapts to your device's power.
No artificial limits
No “5MB max” or “20 images at a time”. Your hardware is the only limit.
Installs as an app
Works offline after first use and opens like a native app on Windows, Mac, Android and iPhone.
Your files never leave your device
Most online tools receive your files on a server. Here it's the opposite: the tool comes to you and runs inside your browser.
Read the privacy policyNothing is uploaded
Images, PDFs and spreadsheets are processed on your device. They never reach our servers.
Nothing is stored
We have no copy of your files. Close the tab and they're gone from browser memory.
No account
No sign-up, email or login is needed to use any tool.
No ads
We show no ads. We use Google Analytics only to measure visits: it never receives your files or what you type into the tools.
Want proof? Open a tool, turn off your internet and keep working. It still runs.
How it works
- 1
Open a tool
The compression engines load once and stay in your browser cache.
- 2
Drop your files
We detect your device and pick the fastest engine available.
- 3
Download
File by file, or everything at once as a ZIP.
Put it on your desktop
Install DeskToolsFlow as an app and use it even without internet.
Guides and shortcuts
Frequently asked questions
Do you keep my files?
No. Files never reach our servers, so there is no copy to keep. When you close the tab, they are gone from browser memory.
Are my files uploaded to a server?
No. All compression and generation happens in your browser. You can even go offline after opening a tool.
Is there a size or count limit?
We don't impose any. On low-memory phones we process fewer images at once so nothing freezes.
Is it free?
Yes. We run no ads and sell no data: donations are the only way to keep the project going.
Does it work with iPhone photos (HEIC)?
Yes. HEIC is converted to JPG, WebP or PNG locally.