As easy as 1, 2, 3.
Drop your files
Images, PDFs or HEIC photos: drop them in the zone above.
We process, you watch
Everything happens in your browser. No file is sent to a server.
Download the result
Get your optimized files in one click, ready to share.
Your files remain yours.
Unlike traditional online services, Filzy never uploads your files to a remote server. Processing happens entirely in your browser using modern technologies. Your documents stay on your device, from start to finish.
No server upload
Everything is processed locally in your browser.
No data collection
No tracking, no selling of your information.
Works offline
Once loaded, Filzy works even without Internet.
Free without sign-up
Use all tools without creating an account.
Learn in minutes.
Simple tutorials to get the most out of every tool.
Reduce the size of your JPG, PNG, and WebP files by 60–80% while preserving visual quality. Ideal for the web, emails, and storage.
Read the guideConvert your iPhone photos (HEIC/HEIF) to universally compatible JPG. No software needed, everything happens in the browser.
Read the guideCombine multiple PDFs into a single document. Rearrange pages, choose the order, and download the result in seconds.
Read the guideFilzy vs the rest.
Most online tools upload your files to their servers. Filzy does everything locally.
| Filzy | Online services | |
|---|---|---|
| File processing | Local | Remote server |
| File upload | Never | Required |
| Works offline | Yes | No |
| Registration required | No | Often |
| Size limit | None | 10-50 MB |
| Data collection | None | Tracking, cookies |
| Speed | Instant | Upload + wait |
Frequently asked questions
Yes. All processing happens directly in your browser. Your files are never sent to our servers and never leave your device.
Filzy supports JPG, PNG, WebP, AVIF, BMP, TIFF, SVG, HEIC and PDF formats. Conversions between these formats are available depending on the combination.
Yes. All tools are free. You can process up to 3 files without an account. Sign up for free to continue beyond that limit.
No. Each tool works without an account for up to 3 files. A free sign-up lets you process more.
Some browsers, especially Safari with Lockdown Mode enabled, block WebAssembly. You can add an exception or use Chrome/Firefox. See the compatibility guide
Ready to simplify your files?
Get started now, right in your browser.