Terma

Overview

Terma is a free, GPL-3.0-licensed workspace for connecting to remote machines, working in terminals, and managing files. It suits administrators and technical users who handle several kinds of remote access; its range is useful, but Web deployment calls for careful network security.

Key features

Terma brings SSH, terminal sessions, SFTP, remote desktops, port forwarding, and batch commands into one workspace. That combination can simplify work across varied systems, especially when command-line access and file operations go hand in hand.

Connections and terminals

SSH supports password, private-key, and SSH Agent authentication. An Ed25519 wizard helps generate keys and deploy public keys, while host-fingerprint confirmation and warnings about changed trusted keys add safeguards against unexpected identity changes. RDP, VNC, XDMCP, FTP/FTPS, Telnet, and serial connections broaden its reach beyond SSH. XDMCP is unencrypted, so it belongs only on a trusted LAN.

Multi-session terminal workspaces, synchronized input, command snippets, and logs support repeatable work across connections. Synchronized input can save time when applying the same command to selected sessions, but it also raises the stakes of a mistake: a command may affect multiple machines at once.

Files and forwarding

SFTP covers browsing, editing, transfers, permissions, compression, and synchronization between local and remote directories. Terma also supports local and remote SSH forwarding, plus SOCKS5 dynamic forwarding, with templates and automatic reconnection options. These tools make the workspace more useful for routine administration, though the breadth is most valuable to people who actually use several of these capabilities.

Storage and security

Connections, forwarding rules, settings, and task state are stored in SQLite, with database backup and restore. Terma supports configuration encryption and says sensitive runtime data should be protected. Web mode listens on loopback by default; for LAN access, the maker recommends setting a Web password and advises against exposing the service directly to the public Internet. Access-token or Web-password authentication and private-network options such as Tailscale, ZeroTier, or WireGuard support more controlled access, but do not remove the need to configure the deployment carefully.

Pricing

Terma costs nothing under the Terma plan. The plan is GPL-3.0 licensed and includes desktop and self-hosted Web use. There is no paid tier or free trial; the free plan is the product, rather than a capped entry point that requires an upgrade. That makes it a straightforward fit for individuals and teams able to run and secure their own environment, but it is not a hosted service with a paid support or managed-use option.

Platforms

Desktop builds are available for Windows, macOS, and Linux. Web mode is supported on Linux servers and Termux, with mobile Web access described by the maker. The macOS release has a practical caveat: v1.7.5 packages are not code-signed or notarized, and Gatekeeper may warn that Terma is damaged or cannot be opened. Mac users should be prepared to handle that obstacle before choosing it.

Who it's for

Terma is a strong fit for technically confident users who manage remote machines across protocols and want terminal, file-transfer, and forwarding tools in one place. Its open-source license and self-hosted Web option suit people who value control over where the workspace runs. It is less suitable for users seeking a managed cloud product, or for anyone who cannot take responsibility for securing network access.

Pros and cons

• Pro: SSH, remote desktops, SFTP, forwarding, and several other protocols share one workspace, reducing the need to juggle separate tools for common remote tasks.
• Pro: SFTP synchronization, file operations, terminal logs, and multi-session features support practical administration workflows.
• Pro: The free GPL-3.0 plan covers desktop and self-hosted Web use without a paid-plan cap.
• Con: Web deployment requires deliberate security configuration; the maker warns against direct public-Internet exposure.
• Con: XDMCP is unencrypted, limiting it to trusted LAN use.
• Con: Unsigned, unnotarized macOS packages may trigger Gatekeeper warnings.

Alternatives

Terma is a remote connection workspace, while the alternatives below focus on photo watermarking. For a broader set of those tools, see Photo Watermarking Software.

• Watermarkly has a free batch-processing plan that adds its logo, plus 1-Year Access for $19.95 a year, billed annually and not renewing.
• eZy Watermark offers a free plan with templates, 300+ fonts, export to other apps, and high-resolution downloads, as well as a Premium plan.
• Watermark.ws has a free tier limited to one photo at a time, 1 GB storage, slow processing, and no custom fonts, alongside a Premium plan.
• wmk is a free, MIT-licensed Python CLI for Linux, macOS, and Windows, with no paid plans listed.
• DoWatermark offers browser-based free processing for batches of three images, with text and logo watermarks, saved presets, and no uploads, plus a one-time Pro plan.
• Overlay Studio is free for Android, iOS, and Web, with a 25-image batch limit that a supporter code raises.
• PictStamp is a free option for iOS and macOS.
• Watermark Maker offers a free mobile plan with text and logo watermarks, tiling, social export presets, small batches, and ads, plus a lifetime Pro purchase.

Verdict

Choose Terma if you want a free, open-source workspace that combines remote connections, terminal work, SFTP, and forwarding across desktop and self-hosted Web deployments. Its breadth is the main reason to choose it; its security responsibilities and macOS Gatekeeper friction are the strongest reasons to look elsewhere.