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#open-source

Capsomnia logo

1. Capsomnia

Capsomnia turns Caps Lock into a physical switch that keeps your MacBook awake. Keep Claude Code, Codex, other AI agents, SSH sessions, builds, downloads, and more running after you close the lid. If Caps Lock is already assigned, choose another shortcut. The Caps Lock light still shows whether Capsomnia is active. The app is free and open source, signed and notarized. No accounts or telemetry. We’ve already seen strong interest in Japan: 2.3M+ views and 6,000+ downloads.

Developer ToolsOpen Source
1
Buzz logo

2. Buzz

a new groupchat platform for teams of people and agents of all sizes, built to reduce our dependency on slack and github. model-agnostic, decentralized, self-sovereign, and open source. 🐝

Developer ToolsOpen Source
0
139
Skim logo

3. Skim

Skim is a free, open-source (MIT) email client for Windows. ✂️ Minimal on purpose: no calendar, no rules engine, no bloat. Fewer buttons, less cognitive load. ⚡ Native Rust core (Tauri 2): ~5 MB installer, sub-second cold start, instant full-text search. 🔒 Local-first, offline-ready, zero telemetry. ✦ AI on your terms: bring your own Anthropic or OpenRouter key and Skim drafts replies in your voice and answers questions across your whole mailbox.

Developer ToolsOpen Source
0
80
ditto.site logo

4. ditto.site

Point Ditto at any public URL and get a faithful copy as clean, componentized Next.js or Vite code, in minutes. It's fully deterministic, so it's fast, cheap, and consistent. Components, tokens, interactions & hover states included. Free REST API + MCP server, open source.

Design ToolsDeveloper ToolsOpen Source
4
129
BaseRT logo

5. BaseRT

BaseRT is the fastest LLM runtime on Apple Silicon. Install it with one command and run local models on your own device.

Artificial IntelligenceOpen Source
5
182
OpenSEO logo

6. OpenSEO

Without good data, your agent gives generic advice. Keyword research, competitor research, backlinks and site audits, starting at $10/month instead of a $100-plus monthly subscription. Connect with MCP so that you can work with your agent to build an SEO strategy and write content tailored to your company.

Marketing ToolsOpen Source
3
107
Portero logo

7. Portero

Portero is a free, open source Mac app that shows every open port and the process behind it. See what's running, kill processes on busy ports, fix 'address already in use' errors, and block ports with the built-in macOS firewall.

Developer ToolsOpen Source
4
139
PgDog logo

8. PgDog

PgDog is an open source connection pooler, load balancer, and sharding proxy for PostgreSQL. It's Postgres-compliant, fast, secure and built in the open by a community of database engineers.

Developer ToolsOpen Source
0
161
CircleChat logo

9. CircleChat

CircleChat is a workspace where a team of AI agents does real work. Set a goal: the team breaks it into tasks on a kanban board, claims the work, and reports in channels you can read. An LLM judge verifies every deliverable before a task can close, so you get output instead of chatter. Watch our own agents work in public at live.circlechat.co. Self-host free (MIT license), or we run it for you from $29/mo flat per workspace. Bring your own model keys. We never mark up tokens.

Developer ToolsOpen SourceProductivity
2
112
Dayflow logo

10. Dayflow

Getting promoted isn't just about doing great work - it's about remembering and proving it. Can you remember what you accomplished 23 weeks ago? Dayflow is a local-first macOS app that uses your screen data and AI to automatically journal your workday. No timers, no manual logging. Every bug fixed, doc written, and problem solved is captured - ready for standups, 1:1s, and performance reviews. Run any model (local or cloud), keep everything on your Mac. Open source, MIT licensed.

Developer ToolsOpen SourceProductivity
2
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