Last Updated May 28, 2026
If you’ve researched Rife frequencies online, you’ve probably come across Frex16 — a free piece of software that turns your PC into a Rife frequency generator. This review explains what Frex16 is, how it works, what it does well, where it falls short, and what to consider before downloading it.
Frex16 (sometimes written “FreX”) is free Windows software that generates Rife frequencies through your computer’s sound card. Instead of buying a hardware Rife machine, you install Frex16 and play frequencies through your speakers, headphones, or attached output device.
Its main draw is a built-in frequency database: a large library of pre-set Rife frequency sequences organized by condition, which you can search alphabetically or by keyword. You can also enter your own custom frequency sets.
The software was originally developed in the Windows XP era and positions itself as an educational entry point into frequency experimentation.
Frex16 works on the same core principle as every Rife tool. The theory, dating to Royal Raymond Rife’s research in the 1920s–30s, is that specific frequencies can resonate with specific organisms. (For background, see What is a Rife machine and how does it work?.)
In practice, using Frex16 looks like this:
Because it runs through a standard sound card, Frex16 operates in the audio range (up to roughly 20 kHz). That’s the same range used by audio-based approaches generally — see our guide to Rife frequencies on headphones and speakers.
Being honest about the downsides matters as much as the features:
This is the most common question, and it’s a fair one. The software itself is a frequency generator — but Frex16 is primarily distributed through third-party download-aggregator sites, not an official, well-maintained storefront. Those sites are known for bundling extra installers and adware, and they’re a common vector for malware.
If you do download Frex16, scan the installer, decline any bundled “offers,” and prefer the most reputable source you can find. The safer route for many people is a hosted alternative that requires no download at all.
⚠️ As with any frequency tool, Frex16 is not a medical device and makes no validated medical claims. Treat it as an experimental wellness tool, not a treatment.
Frex16 walked so modern Rife software could run. The category has moved on in three big ways:
| Frex16 | Modern software (e.g. RifePlayer) | |
|---|---|---|
| Platform | Windows only | Web, iOS, Android, Mac, Windows |
| Install | Download from third-party mirror | Nothing to install |
| Playback | One frequency at a time | All frequencies at once |
| Maintenance | Largely abandoned | Actively updated |
| Database | Built-in, static | Continuously expanded |
If Frex16’s concept appeals to you but its limitations don’t, a maintained, cross-platform platform delivers the same idea without the friction. See the full comparison: Frex16 vs RifePlayer.
Frex16 is a capable free tool for Windows users who don’t mind a dated interface and sequential playback, and who are comfortable sourcing the download safely. But it’s Windows-locked, unmaintained, and slower to run full programs than modern options. If those limitations matter to you, it’s worth looking at the best Frex16 alternatives.
This article is for educational purposes only and is not medical advice. RifePlayer is a wellness tool, not a treatment for any disease. Consult a qualified healthcare provider for any medical concerns.
Experience the power of rife frequency therapy with RifePlayer - the easiest way to use rife frequencies for your wellness.
