# uTox/uTox

µTox the lightest and fluffiest Tox client

Repository: https://github.com/uTox/uTox
Canonical: https://ross.abutalabs.com/products/utox
Language: C
License: NOASSERTION
License Family: other
Topics: tox, osx, linux, android, security, text, messenger, video, voice, windows, lightweight, secure, private, encrypted, str8c, c, fast, light, macos
Last push: 2026-08-12T18:15:32+00:00

## Health v2 (maintenance only)
Score: 66/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 8, longevity 100
- inputs: {"age_days": 4032, "days_push": 21, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1071, forks 201 (observed 2026-08-28T04:03:28.174269+00:00)

## What it is
µTox is a lightweight cross-platform client for the Tox peer-to-peer, end-to-end encrypted instant messaging protocol. It supports text chat, audio and video calls, file transfers, and group chats, written in C.

## Use cases
- send encrypted messages without a central server
- make private voice and video calls
- transfer files securely peer-to-peer
- chat in encrypted group chats
- run a lightweight Tox client on Linux or Windows
- share my screen or webcam privately

## When to choose
- you want a minimal, fast Tox client with a small footprint
- you need encrypted messaging with no central servers
- you use Windows or Linux and want native performance
- you want audio/video calls over a P2P network

## When to avoid
- you need a polished, stable messenger - it is alpha software
- you are on macOS - support is unmaintained
- you are on Android - aTox is recommended instead
- you need feature-rich clients with bots, integrations, or sync across devices

## Facets
- artifact type: application
- maturity: experimental
- function: chat-interface, audio-processing, video-processing, file-upload, cryptography, gui
- domain: privacy, messaging-platforms, cross-platform, security
- platform: windows, cross-platform, c
- tags: tox, p2p, instant-messaging, end-to-end-encryption, messenger, voice-calls, video-calls, lightweight, linux, macos, android

## Member repositories
- uTox/uTox (main) score 66

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:28.174269+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:53:53.678384+00:00, confidence not recorded.
  - readme: https://github.com/uTox/uTox (fetched 2026-08-28T04:03:28.174269+00:00, sha 9e0c941f9d7c)
- Data as of 2026-08-30T08:39:29.467469+00:00.