Archonex Converter

Convert any file, any size. No limits, and nothing leaves your device.

Most free converters cap you at 100 MB and upload your files to somebody's server. This one converts on your own machine, with no size limit at all on Android or desktop — the only thing that bounds a conversion is the free space you have for it.

What it converts

Video and audio — MP4, MKV, WebM, MOV, GIF, MP3, WAV, FLAC, AAC, OGG and more, with quality presets and per-file overrides.
Images, in batches — JPG, PNG, WebP, BMP, TIFF. Thirty photos on mobile, a hundred on desktop, in one run.
PDF, both directions — photos or text into a PDF, or a PDF back out as images.

What it costs

Free Every converter, every format, every size. No monthly count, no account.

Nothing is sold and nothing is counted. A subscription was built for the Android release and then set aside: a monthly cap is only worth having if paying can lift it, and this app has nobody to take the payment. There is no purchase screen, and no conversion is withheld until you buy something.

Where it runs

Platform	Converters	Maximum file size
Android	Media, images, PDF	No practical limit
Windows	Media, images, PDF	No practical limit
Linux	PDF only	No practical limit

Linux carries no media engine, so only the PDF converter runs there — the app says so on screen rather than failing halfway. Every ceiling above is the platform's real maximum; the reasoning behind each number is in the source.

Honest limitations

Text to PDF covers Latin, Greek and Cyrillic. Chinese, Japanese and Korean are refused with a clear message rather than written out as blank boxes.
HEIC and AVIF can be read, not written. No encoder for them ships in the bundled engine.
Converting a very large file takes as long as it takes. The work happens on your device rather than on a server farm, so a feature-length video is a wait, not a progress bar that finishes early.

Get it

Every file is attached to the latest release itself — no mirror, no sign-up, and no installer that downloads a second installer.

Download the latest release

You have	Take this file	What to do with it
Windows 10/11	`…-windows-x64-setup.exe`	Double click it. Windows will say the publisher is unknown — the build is not code-signed; choose More info → Run anyway. It installs for your user only, so there is no administrator prompt. A portable `.zip` is published beside it.
Android	`…-android-arm64.apk`	Effectively every phone and tablet sold in the last decade. Allow installing from your browser when it asks. There is an `arm32` build for older devices and a universal one for everything else.
Linux x64	`…-x86_64.AppImage`	`chmod +x` it and run it. Nothing to install; GTK 3 is all the system has to provide. A `.tar.gz` is published beside it.

SHA256SUMS.txt ships with every release and covers all of them. On Android the same app is also on Google Play; the two builds are identical in what they do and what they cost, which is nothing.