Costarium

What it does

Costarium reimagines bookmarking as a living digital universe. Instead of static folders and endless tabs, links become stars organized inside customizable systems that visually evolve over time. Forgotten resources naturally collapse, while frequently visited ones stay alive, helping users focus on what truly matters. Costarium turns personal knowledge management into a cinematic experience rather than a traditional bookmark manager.

• AB
  A bookmarking tool designed to help synthesize your web research2020 · klobie.com · ▲217
• 
  Bookmarkjar ®Nov 2025 · ▲320

  AI-powered bookmark manager for everything you save

• 
  Bookmarkx2024 · ▲169

  Save and organize your X.com bookmarks

• 
  Chaos2021 · ▲107

  Organize your mess of links, images and documents

• 
  Basket2016 · ▲103

  Organized bookmarking with Notes, Labels and read later

• KY
  Keep your bookmarks clean and up-to-date2022 · github.com · ▲83

• 
  Clipto MCP▲640

  Let agents source clips from terabytes of your local video

  Work · 19d ago · clipto.com

• 
  HyNote for Mac▲383

  Free local transcription that is 100% Private

  Work · 18d ago · hynote.ai

• 
  VoiceOS App Store▲330

  The app store for voice native apps that lives in your notch

  Work · 29d ago · voiceos.com

• 
  Scrimba Explain▲325

  Ask any question, get a video back instantly

  Work · 25d ago · scrimba.com

• 
  Brew ▲905

  Like Claude design for email marketing

  AI · May 2026 · brew.new

• 
  Kilo Code for VS Code▲897

  Parallel agents, diff reviewer, and multi-model comparisons

  Dev tools · May 2026 · kilo.ai

• 
  StoreClaw▲805

  Grow your store profits with agents that know how to sell

  AI · May 2026 · storeclaw.ai

• 
  PollyReach▲796

  Give your agent a real number and voice to make calls.

  AI · May 2026 · pollyreach.ai

• NW
  Needle: We Distilled Gemini Tool Calling into a 26M Model▲776

  Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…

  Life & fun · May 2026 · github.com

• FM
  Files.md – Open-source alternative to Obsidian▲730

  Dev tools · May 2026 · github.com