Atomic Editor – Obsidian-style live preview for CodeMirror 6

In plain words

Atomic Editor is a CodeMirror 6-based text editor that provides live preview functionality similar to Obsidian. It allows users to see rendered content alongside their code as they type. The editor is designed for developers and writers who want real-time visual feedback while working with markdown or other formatted text. It integrates with the CodeMirror 6 framework to deliver responsive editing capabilities.

written from the facts on this page · September 2026

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  Atom v1.02015 · github.blog · ▲423

  The modern & hackable text editor from GitHub

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  Atomic2015 · atomic.io · ▲444

  The fastest way to design beautiful interactions

• AB
  Applesoft BASIC editor with example programs2024 · paleotronic.com · ▲61

  This is an Applesoft BASIC editor that extracts and updates code into a live Apple II VM. You can load examples through the dropdowns at the top-right of the screen. The CodeMirror-based editor separates out 'stacked' BASIC lines to make them easier to read.

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  Atomic.io 2.02016 · atomic.io · ▲328

  Ultra fast, scalable and fully collaborative prototyping

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  OpenKnowledge – open source AI-first alternative to Obsidian/NotionJun 2026 · github.com · ▲381

  Hi HN, Nick here. We’re launching OpenKnowledge (https://openknowledge.ai/), a “what you see is what you get” markdown editor that has direct integrations with Claude, Codex, and other agents. Available as MacOS app or Web UI+CLI. Fully free/local and OSS. We built this because we wanted a Notion-like experience for writing and sharing markdown files across our team. Obsidian is the best alternative we tried, but found it doesn’t have a true WYSWIG UI and it didn’t integrate well with Claude/Codex outside of community plugins. So we built OpenKnowledge. It takes…

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  Ferrite – Markdown editor in Rust with native Mermaid diagram renderingJan 2026 · github.com · ▲241

  Ferrite: Fast Markdown/Text/Code editor in Rust with native Mermaid diagrams Built a Markdown editor using Rust + egui. v0.2.1 just dropped with major Mermaid improvements: → Native Mermaid diagrams - Flowcharts, sequence, state, ER, git graphs - pure Rust, no JS → Split view - Raw + rendered side-by-side with sync scrolling → Syntax highlighting - 40+ languages with large file optimization → JSON/YAML/TOML tree viewer - Structured editing with expand/collapse → Git integration - File tree shows modified/staged/untracked status Also: minimap, zen mode,…

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  SimCity, but with Permits▲927

  A free city-building game in your browser. You are the mayor. You know what the city needs. Now get it past the zoning board, the neighbors, the appeals court and the next election.

  Life & fun · 2d ago · permit.petercai.com

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  I've been paying for a rural Tanzanian's education for 10 years▲778

  Life & fun · 14d ago · tanzaniaeducationproject.org

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  Bigwords.page – Turn any screen into a sign. The URL is the app▲728

  Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.

  Life & fun · 15d ago · bigwords.page

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  Guitoro, a virtual guitar you strum with your keyboard▲573

  Play a free virtual guitar online with your keyboard or by touch. Slow songs down and see every chord, string and strum. Acoustic, classic, electric and bass.

  Life & fun · 9d ago · guitoro.com

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  See *almost* any carriers phone settings▲432

  Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.

  Life & fun · 13d ago · carrierexplode.com

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  The whole Solar System and every tracked satellite, live in the browser▲407

  Life & fun · 23d ago · space.bl2.net

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  Brew ▲900

  Like Claude design for email marketing

  AI · May 2026 · brew.new

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  Kilo Code for VS Code▲896

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  Dev tools · May 2026 · kilo.ai

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  StoreClaw▲806

  Grow your store profits with agents that know how to sell

  AI · May 2026 · storeclaw.ai

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  PollyReach▲795

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

  AI · May 2026 · pollyreach.ai

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  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

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

  🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md

  Dev tools · May 2026 · github.com