Open-source alternatives to TeamViewer

4 alternatives, ranked by a published maintenance score computed from live GitHub signals (fetched 2026-09-04). We flag unmaintained projects on both sides — including TeamViewer itself when the data says so.

About TeamViewer: Proprietary; free tier aggressively flags suspected commercial use. It is closed-source, so the same public maintenance signals do not exist for it — we score only the alternatives below.

The alternatives

RustDesk

90 /100 actively maintained

Remote desktop with self-hostable relay servers; TeamViewer-style UX.

122,577 stars · last commit 2026-09-04 · latest release nightly (2026-09-04) · 138 open issues/PRs · AGPL-3.0 · fetched 2026-09-04

How this 90/100 was computed

Last commit	today	40/40
Latest release	today	25/25
Community size	GitHub stars	15/15
Open-issue trend	not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile	10/20
Total		90/100

MeshCentral

87 /100 actively maintained

Web-based remote management for fleets of machines.

7,165 stars · last commit 2026-09-03 · latest release 1.2.5 (2026-08-12) · 150 open issues/PRs · Apache-2.0 · fetched 2026-09-04

How this 87/100 was computed

Last commit	yesterday	40/40
Latest release	23 days ago	25/25
Community size	GitHub stars	12/15
Open-issue trend	not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile	10/20
Total		87/100

Apache Guacamole

64 /100 maintained

Clientless remote desktop gateway in the browser (RDP/VNC/SSH).

3,979 stars · last commit 2026-08-28 · latest release 1.6.0 (2025-06-23) · 67 open issues/PRs · Apache-2.0 · fetched 2026-09-04

How this 64/100 was computed

Last commit	7 days ago	40/40
Latest release	14 months ago	5/25
Community size	GitHub stars	9/15
Open-issue trend	not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile	10/20
Total		64/100

Remotely

26 /100 stagnant

Self-hosted remote support and unattended access.

Looks unmaintained since 2024-12-17 — Remotely: no commits for over a year. Computed from its GitHub repository, not our opinion.

5,073 stars · last commit 2024-12-17 · latest release v2024.08.07.0819 (2024-08-12) · 251 open issues/PRs · GPL-3.0 · fetched 2026-09-04

How this 26/100 was computed

Last commit	20 months ago	4/40
Latest release	2.1 years ago	0/25
Community size	GitHub stars	12/15
Open-issue trend	not enough history yet — needs snapshots 21+ days apart; neutral 10/20 awarded meanwhile	10/20
Total		26/100