VERT — The Complete Guide: Convert Files in the Browser Without Uploading Them
VERT is an open-source file converter that opens like an ordinary website, but converts images, audio and documents on the computer itself using WebAssembly. Files are not sent to a server, there are no ads and no account is needed.
VERT
VERT-sh (open-source project)
Open-source in-browser file converter: images, audio and documents are converted on your own computer without uploading them.
Get it from the vendorWhat you get
- Local conversion — images, audio and documents never leave your machine.
- Phone photos — quick conversion from HEIC or WebP to JPG or PNG.
- No quotas — the service sets no limit on file count or size.
- Several files at once — and all results downloaded as a ZIP.
- No installation — handy on an office computer where you cannot install software.
What happens to your files
Images, audio and documents are converted in the browser and are not uploaded anywhere. Video is the exception: it is sent to the project’s server and deleted after you download it, or after one hour at the latest. The site uses anonymous, cookie-free analytics that can be switched off in the settings. If you want video to stay in-house too, you can host VERT on your own server. The licence is AGPL-3.0, free for any use.
Related tools
For an internal conversion service installed in the office with Docker — ConvertX. For conversion from the Windows right-click menu, offline — File Converter. For fully local video conversion — HandBrake.
ConvertX
C4illin (open-source project)
A file converter you host yourself with Docker, with a browser interface and support for over a thousand formats.
Get it from the vendor
File Converter
Adrien Allard
Convert and compress images, video and audio straight from the Windows right-click menu, without opening an app.
Get it from the vendor
HandBrake
HandBrake team
Compress and convert large video files — screen recordings and site videos down to a shareable size.
Get it from the vendor
CloudConvert
Lunaweb GmbH
German online conversion service for 200+ formats, with 10 free credits a day and file deletion within 24 hours.
Get it from the vendorThe bottom line
The most private alternative to the well-known conversion websites: as convenient as a website, yet most files stay on your computer. For sensitive video, use a local tool.