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Life & fun · alternatives · 2026

24 alternatives to A new protocol for packet radio including ECDSA and compression

📡 An AX.25 packet radio chat protocol with support for digital signatures and binary compression. Like IRC over radio waves. - brannondorsey/chattervox

A packet radio protocol that incorporates ECDSA encryption and data compression. Designed for amateur radio enthusiasts and developers working with wireless communication systems, this open-source project provides a… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. A new protocol for packet radio including ECDSA and compression launched in 2018; newer entries below may have overtaken it.

  1. 1

    TerminalPhone is a single, self-contained Bash script that provides anonymous, end-to-end encrypted voice and text communication between two parties over the Tor network. It operates as a walkie-talkie: you record a voice message, and it is compressed, encrypted, and transmitted to the remote party as a single unit. You can also send encrypted text messages during a call. No server infrastructure, no accounts, no phone numbers. Your Tor hidden service .onion address is your identity.

    Feb 2026 · gitlab.com · its alternatives →

  2. 2LH

    WebRTC For The Curious # Introduction # WebRTC For The Curious is an open-source book created by WebRTC implementers to share their hard-earned knowledge with the world. It’s written for those who are always looking for more and don’t settle for abstraction. Key features # Focus on protocols and API

    2020 · webrtcforthecurious.com · its alternatives →

  3. 3

    Hi everyone, I recently published a small open-source project. It’s a minimal network packet analyzer written in Go — designed more like a learning toy than a replacement for Wireshark. It currently supports parsing basic protocols like TLS, DNS, and HTTP, and includes a tiny fuzzing engine to test payload responses. You can inspect raw packet content directly from the terminal. The output is colored for readability, and the code structure is kept simple and clear. The entire program is very small — just about 400 lines of Go code. I know it’s not anywhere near Wireshark’s level, and I still…

    2025 · github.com · its alternatives →

  4. 4

    This is a project I made to learn more about crypto. I've also written a [post](https://vaktibabat.github.io/posts/ecurvechat/) that explains all the crypto concepts and algorithms used in the project, and how I implemented them. I'd be very glad for any feedback about both the code and the post :)

    2024 · github.com · its alternatives →

  5. 5

    Free and open source encrypted chat for iOS.

    2017 · chatsecure.org · its alternatives →

  6. 6

    Full network stack over sound -- lwIP driver for libquiet - quiet/quiet-lwip

    2016 · github.com · its alternatives →

  7. 7

    PandwaRF: RF analysis tool with a sub-1 GHz wireless transceiver controlled by a smartphone or - Home · ComThings/PandwaRF Wiki

    2016 · github.com · its alternatives →

  8. 8

    Signal protocol implementation for Node.js. Contribute to ForstaLabs/libsignal-node development by creating an account on GitHub.

    2017 · github.com · its alternatives →

  9. 9

    Chatter Net is a modern decentralized semantic web built atop self-sovereign identity. This is a very early prototype. Help, comments, criticisms are all needed to help the project move forward.

    2022 · github.com · its alternatives →

  10. 10

    A UDP to TCP proxy server for sending HTTP requests with zero roundtrips - TimeToogo/ff-proxy

    2020 · github.com · its alternatives →

  11. 11

    Secure Anonymous SMS in the cloud (and a phone number)

    2018 · crypton.sh · its alternatives →

  12. 12

    Hi HN, I’m a recent CS graduate. During the past few months I wrote BinaryRPC, an open-source RPC framework in modern C++20 focused on low-latency, binary WebSocket messaging. Why I built it * Wanted first-class session support, pluggable QoS levels and a simple middleware chain (global, specific, multi handler) without extra JSON/XML parsing. * Easy developer experience A quick feature list * Binary WebSocket frames – minimal overhead * Built-in session layer (login / reconnect / heartbeat) * QoS1 / QoS2 with automatic ACK & retry * Plugin system – rooms, msgpack, etc.…

    2025 · github.com · its alternatives →

  13. 13

    Decentralized anonymous blockchain messenger. Crypto In-Chat

    2020 · adamant.im · its alternatives →

  14. 14

    A real-time, e2e encrypted ephemeral communication tool

    2023 · its alternatives →

  15. 15

    Instant encrypted web chat

    2017 · its alternatives →

  16. 16
    CallBox▲88

    Anonymous P2P messenger on blockchain technology

    2017 · callbox.xyz · its alternatives →

  17. 17

    A fun weekend project: https://www.modembin.com It's a pastebin, except text/files are encoded into .wav files using real FSK modem audio. Image sharing is supported via Slow-Scan Television (SSTV), a method of transmitting images as FM audio originally used by ham radio operators. Everything runs in the browser with zero audio libraries and the encoding is vanilla TypeScript sine wave math: phase-continuous FSK with proper 8-N-1 framing, fractional bit accumulation for non-integer sample rates, and a quadrature FM discriminator on the decode side (no FFT windowing or…

    Mar 2026 · modembin.com · its alternatives →

  18. 18

    In-browser encrypted chat (open source)

    2014 · its alternatives →

  19. 19
    04-x▲91

    End-to-end encrypted chat UI for LLMs

    2023 · 04-x.com · its alternatives →

  20. 20

    Chat for small teams — encrypted and decentralized

    2019 · blockslack.io · its alternatives →

  21. 21

    A tool for secure and private conversations.

    2014 · tunnelx.com · its alternatives →

  22. 22
  23. 23

    THIS CODEBASE IS OBSOLETE, use PJON instead! ASK/FSK multimaster radio communication protocol for Arduino and IOT - gioblu/PJON_ASK

    2015 · github.com · its alternatives →

  24. 24

    A fully encrypted Slack-like communications tool

    2017 · keybase.io · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →