CodeCollab vs Coterm

CodeCollab is a browser-based shared workspace for pair programming, technical interviews, teaching, and team brainstorming. Rooms provide real-time multi-cursor editing with shared cursors, selections, and keystrokes. The editor offers syntax highlighting, bracket matching, and language-aware indentation for 15 languages. A shared canvas can sit beside the code for architecture sketches, flows, and other ideas. Users can share secrets protected at rest with AES-256-GCM, expiry timers, and instant revocation. Connections use HTTPS and negotiate TLS 1.3 with compatible browsers, but secrets are not end-to-end encrypted because CodeCollab holds the key. Code is not compiled or executed on the service. Unclaimed rooms are deleted after seven days; claimed rooms remain until deletion or account closure. The Free plan costs nothing, while Pro costs $49 a month. CodeCollab is operated by Zeppl Studios in Lisbon.

Coterm is a native macOS workspace for two developers sharing a terminal, browser, and coding-agent session in real time. A live room lets both people join, follow terminal activity, see participants, and share previews. The shared workflow lists Claude Code, Codex, OpenCode, Gemini CLI, Aider, Amp, Cursor Agent, and other CLI agents. Coterm uses a Ghostty-based terminal with vertical tabs, a notification panel, and a socket control API. A CLI and Unix socket expose programmatic commands, while integration hooks can be configured for Claude Code, Amp, Cursor, Gemini, and Kiro CLI. The Mac app runs locally without a Coterm-hosted account service. Collaboration components can run in the user's Cloudflare account. Installation is available through DMG or Homebrew on macOS 14.0 or later, for Apple Silicon and Intel. An iOS companion is in beta. Coterm is free under GPL-3.0-or-later.