Alternatives
Products that do what Hardware-backed end-to-end message encryption, in the browser does
When I first discovered WebAuthn in 2019 I imagined it being used for something like this, but never imagined something like the prf extension enabling true E2EE like this. Everything happens in the browser; there's no server used in any of this because to me that defeated the purpose. I also challenged myself to make a decent UX on top of this because what good is strong encryption if it's not usable? For best results make sure you're using Chrome 116 and a recent FIDO2 security key.
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Hey HN! I made a service to share passwords easy and secure but never promoted it. It's called instapass.io I noticed that people besides my friends and clients actually started to use, so maybe it will be helpful for you too! You share one-time self-destruct message using one time links and I won't even be able to see what you wrote. How does it work? When you generate a message the client-side makes a random password and use that to encrypt the message. The password is appended as an anchor tag which all modern browsers never send to the server. This way, I don't even know what you shared.…
2019
- 7PZ
Hi everyone! So a couple of weeks ago I was building a chrome extension for crawling data and uploading it somewhere online for further exploration. I found myself struggling a lot with this as I found every solution I tried hard to implement (Firebase, Mongo Atlas, EC2). I mean I only needed a simple endpoint in which I was able to set and get JSON data with some key. In the end I made a small CRUD using Mongo, Sinatra, Puma, and Nginx. Then Chrome complained that my endpoint (raw IP) was not HTTPS so I bought a cheap domain and configured an SSL certificate into my server. I found this to…
2020
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Hello. I made this project as an experiment in using key cryptography for user identity in a client server model, and for some future peer to peer projects that I am working on. I am looking for feedback, please let me know what you think. Also, Merry Christmas to HN! :-)
2022 · github.com
- 10AF
Recently I've been playing with an idea of a file server on my Android phone, with a web browser access. I wanted to replace: - AirDroid - sending files to my own PC or laptop. - ShareIt - sending big files over the local network to my family devices. - Dropbox - sharing select files with other people over the Internet. Requirements I had in mind: - end-to-end encryption, no sign ups, no accounts, no passwords - local connection if devices are on the same network - asynchronous access, server should work seamlessly in the background This week I finally managed to stitch the pieces together…
2020
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2016 · encrypt-and-destroy.herokuapp.com
- 12ET
So, you want to avoid mass surveillance and don't trust big tech companies either? But you're tied to your existing network of contacts like everyone else? Well now you can send encrypted messages to your contacts over the Twitter direct messaging channel. It's a serverless SPA called Seecret, a Twitter client hosted at https://www.seecret.io Seecret is open source and freely distributable. You can host it anywhere even from your own localhost server. The app is just plain html and javascript, with no server-side processing at all, no tracking, no logging. Steps: 1-Grant Seecret.io…
2016
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Hi HN! Keen to get your thoughts on an encrypted messaging app I've made: throwaway is an in-browser messaging app. It's specifically for single-use, one-to-one, e2e encrypted messaging. This means your messages are encrypted in your browser, and they are only decrypted when they reach your recipients browser. The messages disappear permanently once both browser windows have closed. You can never recover a throwaway chat; once the window is closed, it's gone forever. throwaway uses the SubtleCrypto Web API to create a public/private key pair every time it is opened/refreshed (ECDH…
2022 · throwaway.sh
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2015 · gethttpsforfree.com
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Hey HN! I'm Linas, and here's my take on XKCD 949. I've created a file sending/sharing website (think WeTransfer) which I believe is unique in several ways: * End-to-end encrypted * Recipients can start their download anytime, i.e. it's not P2P WebRTC-based thing like FilePizza * (Effectively) no limit on the size of the uploaded data, i.e. it will encrypt/decrypt 100 GB just fine * (Effectively) no limit the number of files that get sent * Real-time transfers, i.e. recipients can start downloading their files even before you finish uploading them * Resumable uploads/downloads…
Dec 2025 · aero.zip
- 16PE
Hi HN, I’ve been working for the past 10 months on p2party, a TypeScript/C/WASM library which you can find at https://github.com/p2party/p2party-js and demo at https://p2party.com , that lets you spin up an encrypted peer-to-peer mesh with nothing more than a shared URL. Why I built it: I wanted something between https://file.pizza and “ephemeral Signal chat”, but with my custom cryptographic idea (I know I know... WebRTC is already encrypted and it is easy to go wrong etc.). The project started as a toy for sharing large DAW files with my…
2025 · github.com
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I built SecureShare to solve a common problem I faced: securely sharing files between devices without size limits or intermediary servers. What it does: - Direct P2P file/text/folder sharing using WebRTC - No file size limits (only constrained by local disk space) - No registration required - All data stays on your devices (no server storage) - Supports multiple simultaneous receivers - Custom retrieval IDs and QR codes for easy sharing - Works across platforms, mobile-optimized Technical details: - Built with Next.js + Tailwind + shadcn/ui - Backend: Node.js + Redis (minimal,…
2024 · securityshare.xyz
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Put this together because I was tired of setting up anything when testing / prototyping projects that need a simple queue. Feedback / PRs / issues welcome. Feel free to use in production if you dare (or run your own server).
2023 · github.com
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Capsule started as a basic HTTP server to teach myself Rust. Then I kept going, and it turned into the first full-stack thing I've fully shipped: a Rust/Axum server, a Rust CLI, an Android app (my first, same story as the Rust one), and a fully featured web UI. It quickly grew as I realized I could solve my file transfer problem by turning a basic webserver into an actual daily use tool. Entire project is open source, code can be found at: https://github.com/withcapsule/ Would love to hear anyone's thoughts on this.
Jul 2026 · withcapsule.dev
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2016 · github.com
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I've had issues saving bookmarks on my computer since my girlfriend always uses it. I'm talking about engagement ring related bookmarks, birthday plans related bookmarks, etc. My buddy and I built an extension called Hush that allows you to save them behind a password of your choosing. They're encrypted using SHA-256/AES, and you can export/import them to your liking (in case someone accidentally uninstalls the extension). It only operates in private browsing for security reasons. Check it out and let us know what you think! Chrome link:…
2013
- 22HS
Hi HN! I built hidetext.sh — a way to share text, code, and files through links the server can't read. How it works: your browser generates a random key and encrypts everything locally (NaCl secretbox, XSalsa20-Poly1305). Only ciphertext is uploaded. The key goes into the URL fragment — the part after # — which browsers never send to servers. The link carries the key, my server stores the locked box, and the two only meet in a browser. A design detail I'm fairly happy with: burn-after-read doesn't destroy the paste on the first HTTP request. The naive version means a Slack or iMessage link…
Jul 2026 · hidetext.sh
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We develop file transfer service which use end to end encryption. It inspired by Firefox Send but it’s resolved the issue of used for malware. This is still beta stage and you can use premium feature by using Stripe test card detail. https://stripe.com/docs/testing There are minor changes on our web app. Any feedback is appreciated!
2023 · beta.postspace.jp
- 24WP
Magic Wormhole is great but requires a CLI or app. I put a full wormhole-rs client in the browser via WebAssembly so you can send E2E encrypted files to anyone — interoperable with all standard wormhole CLIs. Drop a file, get a code, other person opens the link or types wormhole-rs receive . SPAKE2 + NaCl encryption happens client-side, the server only bridges WebSocket transit. Built this as an experiment with Claude Code + gstack. All code written by Claude. Single Rust binary, vanilla JS, no framework. https://wormhole.page…
Mar 2026 · wormhole.page
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