
CryptoWave
Secure, 100% client-side toolset for devs & privacy seekers.
2 followers
Secure, 100% client-side toolset for devs & privacy seekers.
2 followers
Stop uploading your private data to random servers. CryptoWave is a 100% client-side toolbox for developers and privacy seekers. Using FFmpeg.wasm and WebAssembly, it processes audio, images, and encryption (AES/RSA/Hash) entirely in your browser. No server-side uploads, no tracking, and no wait times. Just fast, secure, and private tools that respect your data.







Hey Product Hunt! š
I built CryptoWave because I had a simple but unsettling realization
one day ā I was pasting sensitive API keys into a random online AES
encryptor, and I had absolutely no idea where that data was going.
So I asked myself: why can't all of this run locally in the browser?
Turns out it can. The Web Crypto API is built into every modern
browser and is incredibly powerful. Combined with FFmpeg.wasm for
audio conversion, I was able to build a tool where:
ā Zero data ever leaves your device
ā No accounts, no tracking, no ads
ā Works offline once the page loads
The hardest part was getting FFmpeg.wasm to work correctly ā
it requires special Cross-Origin Isolation headers, which took
some digging to configure properly on Vercel.
I'd love feedback from the community, especially:
- Are there any crypto tools you wish existed?
- Any audio formats I should add?
- Anything that feels confusing in the UI?