#Editors
200
2026-09-25
Show HN: Whiteboard (YC W26) – An open-source IDE for thoughtful software design
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Hello! We’re Sid, Alex, Ketan, and Milan. We’re building Whiteboard ( https://whiteboard.dev.fast/), an open-source desktop app where humans and agents can architect software together in a common workspace. Here’s our repo: https://github.com/devdotfast/whiteboard. We were missing the feeling of a “whiteboard session” with another dev where you leave with a deep understanding of a system, so we built this app for ourselves. Whiteboard plugs into the tools you already use - e.g. Claude Code, Codex, etc. – and gives your agent an SDK to draw on an in-app canvas to describe its work. We began with an MVP based on HTML artifacts and started rethinking the app as we ran into limitations: 1. Built on top of CodeOSS: We found that in pure HTML tools it was hard to connect a spec or diagram to code. In Whiteboard, when you click on visualizations like a sequence diagram, an entity relationship diagram, or a quote from the agent’s trace, you can jump to the underlying code directly. When navigating code, you get keybindings and LSP support from VSCode out of the box. We’ve found this is especially valuable because tradeoffs are often only discovered after a first pass at implementation (re: slop) 2. Semantic diff viewer: we wrote a semantic, AST-aware diff viewer in Rust so you can only view the code changes which are relevant to you [1]. We’ve set up some sane defaults: large added functions are summarized as pseudocode, and things like unit tests and large documentation changes are collapsed / hidden. This is all customizable with a WASM-based plugin system. 3. Decision Log: We found it difficult to reason about what set of decisions our agents made autonomously. So we built tools for agents to query and link their own traces to the Whiteboard, so you can understand how the requirements that you set were implemented, and understand what decisions your agent made autonomously. Here’s a quick demo video explaining more: https://www.youtube.com/watch?v=ChPn3ftULWE Folks at companies like Salesforce and Modal are using Whiteboard today as a review tool for architecture or spec-level changes – really any change where they want to be involved: 1. Reviewing your own coding agent’s work: because Whiteboard makes it easier to review large amounts of code, folks will typically have their AI agents create a prototype and a corresponding Whiteboard session so they can iterate on the design. 2. Reviewing other people’s changes: We’ve found that Whiteboard is particularly helpful when composed with tools like Greptile. For example, you can run an automated code reviewer on small changes and escalate to a Whiteboard session for the changes that require human judgement. Why we built this: we’re four buddies from college who quit our jobs as tech leads right before agentic coding became industry standard. As we iterated towards an MVP for a previous idea, we struggled to maintain a comprehensible codebase while reaping all the velocity benefits of agentic coding. As more PRs were merged without our understanding, we felt a ‘cognitive debt’ begin to seep in, until it became difficult for us to even contribute to the system [2]. We’re releasing our desktop app under an MIT license. Please poke through and feel free to contribute! Eventually we’ll charge companies for a hosted web version that manages whiteboard session creation alongside features like trajectory storage and multiplayer reviews. Everything will always remain self-hostable. Thanks for reading, and we hope you try it out! We would love to hear any feedback and to learn from your expertise. Here’s are the project links again: https://github.com/devdotfast/whiteboard, and you can install (for MacOS + Linux) at https://install.dev.fast [1] diffs library: https://github.com/devdotfast/diffr [2] Credit for the term ‘cognitive debt’ goes to https://www.geoffreylitt.com/2026/07/02/understanding-is-the...
2026-09-10
ishtms/glooprint
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An Unreal Engine plugin for automatic Blueprint graph formatting and clean/performant wire routing. Press F to tidy up your entire graph.
2026-09-28
Show HN: Building a Markdown editor for Mac, iOS and web
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I've spent the last 10 months building Beauty: a local, powerful greco-roman Markdown editor where the page looks finished while you type. It runs on the Mac, iPhone and in the browser, and the browser version opens without an account: https://app.markdown.beauty I was frustrated with writing apps, and like most I used Apple Notes. After 2+ years immersed in Cursor, Codex and CC, I wished some interactions existed in a text editor. The Markdown renders in place as you write it, including tables (which you can drag and resize without lining up pipes), KaTeX math and Mermaid diagrams. A lot of thought went into typography and the writing experience. Your notes on the Mac are plain .md files in a folder with images next to them, so they open in anything else too. Each note keeps 200 versions. If you share a note with a link it syncs peer to peer over WebRTC while someone has it open, and the server that connects you only ever sees a random room id. Most of the ~1,000 commits went into the editor itself. It's a contenteditable, and I don't let the browser restructure the document at all, which was a lot more work than I expected. Building this to be performant and cross-platform required some novel approaches, which I'll later open source. The editor is free with no account or ads, and there's an optional subscription for sync through your own iCloud. https://www.markdown.beauty
2026-10-21
indexable-inc/ra-jit
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Rust compiler daemon on rust-analyzer: fast incremental cargo builds and live edits to running programs. Try: nix run github:indexable-inc/ra-jit
2026-10-10
0xdeadf1sh/AssemblyForNeovim
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Small lua script that shows inline assembly in neovim (x64, aarch64) for C, C++, and Rust.
2026-09-24
blackhat-7/vellum.nvim
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Live, beautiful GitHub-markdown preview beside your buffer in Neovim — mermaid diagrams as real images, in the terminal.
2026-10-29
simone20a/Nook
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Nook is a terminal markdown note editor written in Go with the concept of Focus Line: the line you are typing always stays in the middle of the screen as raw markdown, while the rest of the document scrolls around it already rendered.
2026-11-03
SafEight/pachislop
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Make flashy pachislot title art in your browser. A mix of Photoshop and After Effects, with Element 3D and Eye Candy built in.
2026-09-16
slorber/gpu-lexer-textarea
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Demo of using gpu-lexer with the new OpaqueRange web API (Chrome 152+) to create a universal syntax highlighter within an editable textarea
2026-09-12
Show HN: Toast, a by default in-terminal IDE
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https://paradise-runner.github.io/toast/
2026-09-10
0xleonvibe/dst-character-studio
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A local art workbench for Don't Starve Together characters: layered drawing, binding calibration, native animation review and build export.
2026-10-21
igsova/SimpleCAD
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Direct modeling for FreeCAD, in the spirit of SketchUp: draw, push/pull and edit faces directly, and turn STL meshes into editable CAD.
2026-10-17
CluvexStudio/Strata
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An open-source file manager for Android: two panes, archives, APK and DEX editing, a code editor, network storages and an encrypted vault. No ads, no accounts, no tracking.
2026-10-11
Atoll92/agent-standup
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Your Claude Code session as a live, animated team call (VS Code extension, stand alone node server, locally, no additional token usage)
2026-09-24
FoxDevCommunity/FoxDevStudio
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A modern IDE and 64-bit runtime for Visual FoxPro 9 applications.
2026-10-16
storytold/AniCraft
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AniCraft: An open-source 2D animation editor written from scratch in pure Rust.
2026-11-03
storytold/materialcraft
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MaterialCraft: An open-source, node-based material designer written from scratch in pure Rust
2026-10-25
openOMSI-org/openMapper
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A simple map editor for openOMSI: draw roads, place objects, shape the ground, drive the map in openOMSI (requires the original OMSI 2)
2026-10-08
storytold/wordcraft
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An open-source, clean-room reimplementation of Microsoft Word in pure Rust
2026-10-05
wieslawsoltes/SharpForge
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C# subset compiler written in JavaScript with ECMA-335 IL/PE output, a managed runtime, debugger and browser IDE (SharpForge Studio).
2026-09-26
Xuanwo/cida
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Cida: translate and polish text anywhere on your Mac using the LLM of your choice. Translate and polish text anywhere on your Mac.
2026-09-22
IanHeinrich/stellaris-galaxy-forge
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Galaxy map editor for Stellaris saves and static galaxy scenarios: move systems, draw and cut hyperlanes, shape nebulae, place initializers and spawn points. Byte-level edits, backups, undo.
2026-09-19
AnaLauraCorrea/ShellDelphi
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Terminal PowerShell dentro do RAD Studio, via ConPTY. Roda Claude Code, vim e qualquer TUI.
2026-10-03
p3rception/Quick-Font-Size
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VS Code extension: Cmd/Ctrl +/- changes the font size of the focused area (editor, chat, terminal, debug console, Markdown preview) instead of zooming the whole window.
2026-08-25
MoTheMansour/canvas-retro-engine
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NES & PS1 retro emulation engine running inside native Obsidian Canvas nodes at 60 FPS.
2026-10-30
dufu1991/foldgit
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A native, lightweight Git client for macOS. Manage repositories and worktrees, review diffs, and commit changes in one window.
2026-10-08
storytold/cadcraft
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CADCraft: computer-aided design and drafting — an open-source, clean-room AutoCAD-style app in pure Rust
2026-10-08
storytold/gridcraft
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GridCraft: an open-source, clean-room spreadsheet (Microsoft Excel-style) in pure Rust. By ArtCraft.
2026-09-27
ZacharyZhang-NY/OmaPhoto
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Layered image editor for Linux and Omarchy, a port of Compositor
2026-10-17
yangsir2077/pixel-loom
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Pixel Loom 像素织机: an open-source pixel art and animation editor that supports AI creation via MCP. For the Windows portable version, click the link below and use it after fully extracting.
2026-10-23
bwuxqdmgyeub/pdf-annotate
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Edit PDFs in-browser: add text, highlights, stamps, freehand ink; fill forms, merge pages, export annotated PDFs.
2026-10-08
pjwang2022/trace-by-hand-whiteboard
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A digital whiteboard for tracing algorithm problems by hand (LeetCode), 7 languages. Live: https://draw.prod-stack.com
2026-10-04
PeterWarrington/XP-Code
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A VS Code-style editor in under 200kb and compatible with Windows XP.
2026-08-31
jooray/nsite-clay
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A self-editable nsite. One HTML file that edits and republishes itself, hosted on Nostr.
2026-10-01
onliner10/fluent-midi-editor
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Finally, a MIDI editor for REAPER that feels good. Multi-track piano roll, installable via ReaPack.
2026-10-23
Liter4553/korkana-ime
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A Windows global IME that outputs Japanese when you type Hangul pronunciations. 하지메마시떼 → はじめまして, convert to kanji with Space.
2026-10-22
XeraFang-Solutions/TF2-HUD-Studio
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A CrossPlatform Studio for TF2 HUD development, Perfect for everyone
2026-09-28
Djain912/depcart
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VS Code extension: search npm, PyPI, Go, crates.io, Maven, NuGet, RubyGems, Packagist, pub.dev and Hex from one sidebar, pick exact versions, and get the right install command for your project.
2026-09-22
fstandhartinger/chat-seek-vscode
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Local VS Code search across Claude Code, Codex, and OpenCode chats with Laya reranking
2026-10-16
tohsakarat/manga-relab
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A former fan-translation veteran packed all his scanned-image retouching skills into this WebUI node editor!
2026-10-09
floorianmb/prism-viz
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Prism: sandboxed, themed, interactive visualizations in Obsidian notes
2026-10-04
StarWink0712/Jianmo-resume
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A local-first resume editor with LaTeX typesetting and free PDF export. Jianmo: edit locally, enter content, and get professional LaTeX-based typesetting automatically, bringing resumes back to content.
2026-09-07
data-goblin/fileblade
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Customizable IDE-like sidebars for managing files and referencing information in Omarchy.
2026-09-02
tapresle/pebble-watchface-builder
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Browser-based drag-and-drop watchface builder for the Pebble Time 2, Core 2 Duo and Pebble Round 2 that emits Pebble C SDK code for CloudPebble.
2026-11-04
Roland0511/dsh-marktext
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MarkText (muya) WYSIWYG Markdown editor for the DeepSeek Harness right sidebar
2026-10-16
SaveEditors/LightbarEditor
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Desktop editor for PS5 shutdown-screen lightbar colors, particle palettes and ramp textures, with verified FTP transfers.
2026-10-02
Amazing-Birds/tex-revision-cursor-extension
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Accept, reject, and navigate TeX revision markup in Cursor and VS Code.
2026-09-23
DumpAnalysis/CategoryTheoryStudio
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Visual Category Theory Studio — draw commutative diagrams, 2-cells, adjunctions and 3D cubes in the browser; export SVG, PNG and tikz-cd. Concept by Dmitry Vostokov, DumpAnalysis.org
2026-10-11
rbartoli/obsidian-tela-theme
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An easy-to-read, easy-to-scan Obsidian theme, inspired by the Tela app. Every text colour passes WCAG AA in dark and light.
2026-10-06
wieslawsoltes/VB6
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VB6 Studio Web — a browser-native classic Visual Basic IDE, form designer, source runtime and controls library in HTML, CSS and JavaScript, with a debugger, WebGPU drawing and single-file HTML app export.
2026-09-19
gentpan/LiteMD
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A lightweight Markdown editor built for macOS: live preview, 20 color themes, built-in format conversion, and files always stay as your own .md
2026-09-14
fwfuuu-design/vibe-writing-open-source
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A local-first AI writing workbench with Markdown editing, reviewed AI changes, research, memory and text skills. Apache-2.0.
2026-10-14
Mrdifferent2022/paged-doc-editor
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Paginated document editor (Tiptap v3 + Vue 3): multi-section layout, WYSIWYG soft pagination, headers/footers with odd/even variants, template params, staged signatures, and a server-side finalized PDF rendering pipeline
2026-10-08
storytold/soundcraft
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An open-source, clean-room reimplementation of Avid Pro Tools in pure Rust
2026-10-02
Show HN: Rhun, an open-source code editor written in assembly
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I found that I'm not using even 1/3 of vim/vscode features anymore. That's wht I'm building rhun - a small code editor for Linux, Windows and Apple silicon Macs. It obviously has Vim mode, a terminal, Git diffs and a panel for Claude Code or Codex sessions. The editor and pixel renderer share an x86-64 assembly core. For Apple silicon, a build-time translator converts that core to AArch64, with separate platform adapters around it. The latest release can draft commit messages using a local Ollama model or an existing Claude Code or Codex subscription. It's a solo project, MIT licensed and still early.
2026-09-12
topninja/venue-studio
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Professional browser-based venue seating map editor with built-in arena layouts
2026-08-29
mohammedkmo/OpenTable
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A clean, fast SQL editor for the desktop. PostgreSQL, MySQL/MariaDB and SQLite — locally or through an SSH tunnel.
2026-11-02
kiukfungeon/mdr
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a very light rust based markdown reader with support of mermaid (web, native, TUI). vibe coded
2026-09-16
TheGreatSimon/AnvilCSG
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Anvil CSG Beta 2: a free legacy preview of brush-based level design inside Unity. Hammer-inspired workflow, Built-in and URP.
2026-09-11
tonywjs/html-doc
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A standalone HTML document edited and saved directly in the browser. Agent Skill and HTML conversion tools for Claude Code and Codex.
2026-10-15
nhatkhangcs/overleaf_comments
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A package that helps visualize the comments while writing LaTeX
2026-09-28
Altimor/flo-state
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A minimalist, native macOS markdown editor. Swift + TextKit 2. GPL-3.0.
2026-09-28
mannders00/OrbitalNote
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Your notes. Your calendar. Your files. Free, open-source Org editor for desktop and mobile, with optional end-to-end encrypted Sync. Native preview available now.
2026-08-28
rhevorn/confetti
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Confetti — one VS Code extension for toml, yaml, ini, nginx, dotenv, gitignore, hosts, and 16+ config files. Local, fast, no telemetry.
2026-10-26
hyoban/peek
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A native git diff viewer for macOS, with Codex-written commits and code reviews, built in Go with MyGo
2026-10-16
DrKJeff16/triforce.nvim
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(FORMERLY gisketch/triforce.nvim) Hey, listen! Gamified stat tracker with XP, levels, achievements, and activity heatmaps for your coding sessions with lualine integration
2026-11-09
ox0pine/mojian
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A quiet text editor for plain files: native tabs, split panes, terminals, Git, and SSH projects. Built with MyGo for macOS and Linux.
2026-10-13
mjm-12/kicad-tokyo-night-schematic
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Tokyo Night color theme for the KiCad schematic editor
2026-09-29
johnzhaors-bit/pixelcrabs
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Open-source Visual AI IDE built on OpenCode. Preview, point-select, box-select and multi-select UI elements, trace them back to source code, and let AI modify your app precisely. Local-first, extensible, built for visual AI development.
2026-09-28
omgkai/KeepSake
C
A native macOS Pokémon save editor and personal journal, powered by PKHeX.
2026-08-29
daaaayuuuu/verlay
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映证 Verlay — an AI visual editor for real web apps, supporting element selection, natural-language edits, code agent collaboration, and real-time source updates
2026-10-16
dwmkerr/whatsapp.nvim
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WhatsApp in Neovim. Less than 200 bytes of entirely hand-written code.
2026-10-14
zsviczian/obsidian-excalidraw-cli
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A library to support Obsidian Excalidraw CLI development
2026-08-24
lxw112190/lw.MD
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A clean and reliable local Markdown editor for Windows, built with React, Vditor, C++17 and WebView2, distributed as a single portable EXE. A clean and reliable local Markdown editor for Windows, built with React, Vditor, C++17 and WebView2, distributed as a single portable EXE.
2026-10-23
SoFluffyOS/raccoon_simulator
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Run your Flutter app on Raccoon from the editor you already use, and see it in a simulator window. macOS and Linux. Alpha.
2026-10-23
TheLastOxygen/mafdet
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You type. It already knows. Local LLMs that read and think while you type.
2026-10-15
robzilla1738/muse-desktop
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Unofficial macOS, Windows, and Linux desktop companion for Muse Code by Robert Courson. Real CLI sessions, voice input, and five themes. Not affiliated with Meta.
2026-08-31
RexaDB/RexaDB
C
Multi-database desktop client for PostgreSQL, MySQL, MongoDB, SQLite, ClickHouse, Redis, and SQL Server.
2026-08-29
stubbb/c-shop
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2D layer based graphic editor supporting agentic workflows and MCP integrations
2026-10-06
oil-oil/oil-git
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A read-only Git visualization desktop app for AI project developers, supporting macOS and Windows.
2026-09-15
btj93/fireworks.nvim
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Fireworks in your buffer every time you save. A joke UI plugin for Neovim.
2026-10-12
wm0104/RepoPocket
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An AI-assisted written and compiled iOS GitHub file management tool, supporting browsing, editing, uploading, deleting files, and managing multiple accounts.
2026-10-08
yi-yezhiqiu/dsh-prompt-market
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DeepSeek Harness prompt marketplace plugin: browse, search, and favorite prompts in the chat box with one click, and insert the selected one into the input field. Zero backend, no build, data stored only locally. | A prompt marketplace for DSH: browse, search and insert prompts straight into the composer.
2026-09-23
ningbainb/Dcode
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Open-source AI coding desktop with DeepSeek Harness and private GitHub backups of uncommitted code.
2026-10-04
NahumLitvin/prismantis
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Colorful, themeable Claude Code replies: tables, code, diagrams, charts and tool rows in 15 themes, with copy buttons. A Claude Code mod.
2026-09-01
Show HN: Markdown Viewer and Editor
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I built an online viewer and editor for .md files where the file stays on your machine. Free to use and code is available under MIT License here: https://github.com/hattray/markdown-editor You can also install it as a Chrome/Edge app so that it works for files on your desktop by double-clicking. Supports standard .md files with formatting, syntax-highlighting for code, table of contents, Mermaid diagrams, LaTeX via KaTex. Also supports exporting to .html, .pdf and .png. Please give it a try and share your feedback for improvements.
2026-10-05
Mix4o445/antigravity-gemini-theme
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Gemini-inspired dark theme for Antigravity, with a reversible Windows installer.
2026-09-27
BkashJEE/hermes-newsroom-plugin
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Opens Hermes Newsroom inside the Hermes Desktop app: sidebar page, status-bar launcher, theme bridge. One file, no backend.
2026-09-15
CheshiAI/Cheshi
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Cheshi is a desktop workspace for AI-assisted development. Work with Codex, explore your codebase with CodeGraph, and manage code, terminals, and Git in one place.
2026-09-02
Quincunx33/GitLab
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PushFlow is a modern, fully-featured GitHub and GitLab web client. Manage repositories, edit code in real-time, stage commits, and track history seamlessly.
2026-10-29
Vancete/gitcraft
C
A visual git client, simple to use yet powerful. Light, fast and debloated.
2026-10-07
VenLac/kaguya-code
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Kaguya Code — AI coding workspace (unofficial fork of zai-org/ZCode, Apache-2.0)
2026-09-24
Show HN: QBasic 1.1 in the Browser
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I built an independent reimplementation of the QBasic 1.1 compiler, virtual machine, and IDE that runs entirely in the browser. TypeScript with a Svelte 5 frontend.
2026-09-10
AstudioLLC/astudio-wysiwyg-html-editor
C
Free forever base version of Astudio WYSIWYG Rich HTML Editor for websites and CMS platforms. Optional paid updates and support by Astudio LLC.
2026-10-16
danvega/kiln-theme
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A warm dark and light theme for JetBrains IDEs: charcoal and cream surfaces, a clay accent, and calm syntax colors.
2026-09-14
mstrYoda/codesaber
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Minimalist agentic IDE built for devx. It's like a lightsaber, but for developers.
2026-08-27
sofintel/sofintel
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Sofintel - Software Intelligence all-in-1 lightweight rust zed-derived IDE where everything is in one environment. Build, test, and ship without switching apps.
2026-10-29
YZH2006517/SpektraLab-Windows-NANATATA
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SpektraLab film simulation for Windows · installer in Releases
2026-09-06
juejijianghuaa/CoDock-Release
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Local Coding Agent desktop workbench and terminal integration hub
2026-10-14
emacs-taf/emacs-taf
D
Workspace orchestration, development policy and integration checkpoints for the ETAF ecosystem
2026-09-25
ZCodium-project/ZCodium
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ZCodium, Independent audit fork of ZCode (ZCode → ZCodium). All monitoring and telemetry removed; upstream commits reviewed one by one.
2026-09-23
Zcode-CE/Zcode-CE
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The open-source community edition of ZCode: telemetry removed, official service benefits retained, open-source docs and desktop automation capabilities provided
2026-09-22
7836246/kcode
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Open-source AI coding workbench, including desktop, Web, and terminal. Based on ZCode (Apache-2.0), with no official affiliation with Z.ai / Zhipu.
2026-08-30
nol00p/Shoin
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*Shoin* (書院) is the study alcove of a traditional Japanese house: a writing desk built into a bay by the window, and nothing else in the room.
2026-10-09
mainanamisa/compositor-cn
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Compositor Simplified Chinese localization — free open-source macOS image editor (upstream: robbietilton/Compositor, MIT)
2026-09-20
kilolonion/cursor-cpa-plugin
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Enhanced Cursor plugin for CLIProxyAPI with reasoning content streaming, system constraint injection, and official brand logo (AI-assisted development)
2026-08-24
harshrajsachan/omni.nvim
D
The last Neovim colorscheme you'll ever need. 7 carefully crafted flavours, one unified theme.
2026-10-05
j-patterson18/XYplorer-updated
D
A tool XYplorer: builds a nice nested menu of your favorites
2026-10-23
Dreamloboutique/planet-zoo-2-save-editor
D
Planet Zoo 2 Save Editor 2026 — Edit money, conservation points, research, and unlock all animals. Free offline save editor.
2026-11-05
ChannelDivinerCast/VSCode-Extension-Helper
D
Lightweight desktop tool for Visual Studio Code users. Smart extension management, performance optimization, recommendation system and productivity helpers. Clean interface, regularly updated
2026-11-09
TankSharkSymbolize/php-storm
D
Php Storm 2026 automated deployment pipeline for enterprise desktop software catalog, ensuring seamless pre-configured environment setup.