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DEV TRENDS / DAILY DISCOVERIES

Sep 28, 2026 · What developers are building

Daily discoveries from developer communities, independent makers, and open source.

Fuwa: A macOS Window Pinning Tool

Fuwa is a macOS window pinning tool: bring a window forward and press ⌥⌘P to keep its live view on top while clicks pass through to the app below. Pin several windows at once, freeze a frame, or jump back to the source window.

LanguageSwiftDTDesktop productivityDTDesktop appOriginalalways-on-top
67

OpenShorts: Open-Source AI Clipper for Vertical Shorts

OpenShorts is an MIT AI clipper turning long podcasts/streams/interviews into 9:16 shorts. Uses faster-whisper, LLM highlights, face-tracking reframing, subtitles, two-speaker split-screen. By mutonby/openshorts, not jnMetaCode/openshorts.

LanguagePythonDTContent creationDTAgent extensionOriginalagent-skills
5.8K

kdpbook.io: Chat-to-Book AI Studio for Amazon KDP

AI book studio for Amazon KDP: describe a book in chat; it plans, writes, illustrates with consistent characters, lays out pages, and exports KDP-ready interior PDF, cover, EPUB and metadata. 36 book types, 40 styles, 34 languages.

DTContent creationDTVertical agentDTWeb app
—

QDuo: AI-Powered Ring-Style Text Selection App

QDuo: lightweight native SwiftUI text-selection app with three styles (ring, capsule). Offers grouped actions and 30+ built-in/custom AI actions: translation, polishing, search, read-aloud, text processing, LLM queries.

LanguageSwiftDTDesktop productivityDTDesktop appDTmacOS
87

AgentHop: Direct Agent-to-Agent Communication

AgentHop lets two agents talk directly via pairing codes: no public IP, E2E encrypted, relay forwards only ciphertext. MCP server for Claude Code, Codex, Cursor, Gemini CLI, grok. Invite by name; self-hosted relay; single file, no Node.js.

LanguageTypeScriptDTSoftware developmentDTAgent extensionOriginala2a
1

tlgr: Telegram CLI for Scripts and AI Agents

CLI to control your Telegram account via MTProto (not Bot API) for scripts and AI agents. Send, search and manage chats, groups, contacts, media, polls, Stories. Uniform JSON, stable exit codes. Agent Skill for Codex, Cursor, Claude Code.

LanguagePythonDTSoftware developmentDTAgent extensionOriginalagent-skills
184

seiso: Markdown linter for AI-written project docs

Rust-based Markdown convention and linter for project docs: each doc declares a type (howto, reference, adr), facts have one owning page, no chat residue or fast-changing values, plus link checks. Diagnostics give location and fix hints;

LanguageRustDTSoftware developmentDTAgent extensionOriginalai
126

FCaptcha: Self-Hostable Open-Source CAPTCHA

MIT-licensed self-hosted CAPTCHA with checkbox and invisible modes, using browser signals, behavior, and proof-of-work instead of image/audio puzzles. Provides Go, Node.js, and Python server SDKs plus Docker images.

LanguageJavaScriptDTSecurity & testingDTLibrary / SDKOriginalai-bot-detection
218

WebDecoy: A Locally Run WordPress Bot Detection Plugin

GPLv2+ WordPress plugin running core bot detection locally with no account or API key: honeypots, request analysis, browser signals and proof-of-work guard login, comments, registration and WooCommerce checkout, with logs and admin panel.

LanguagePHPDTSecurity & testingDTSkill / pluginOriginalanti-spam
1

Umem-cache: Strongly Consistent Key-Value Cache

Umem-cache: strongly consistent KV cache with anti-stampede, compact fragment-free memory, strict memory control, lock-free multithreading, mTLS and Raft clustering. Claims 10% higher hit rate, 50% higher hit throughput vs Memcached/Redis.

LanguageCDTData & operationsOriginalcacheOriginalkey-value
4

armorpaint

ArmorPaint is a 3D PBR texture painting tool: drag in a model to edit with real-time preview, use node and UV editors, and import OBJ, FBX, Blend, and glTF on Windows, Linux, and macOS.

LanguageCDTContent creationDTDesktop appOriginal3d
5.3K

iPhoneMirror

A Windows local screen mirroring tool for iPhone/iPad, streaming video and audio over USB or AirPlay, with multi-device support, separate windows, screenshots, OBS, and Bluetooth mouse/keyboard control.

LanguageC#DTLifestyle & entertainmentDTContent creationOriginalairplay
901

QuickLook

QuickLook is a Windows file preview utility that lets users press the spacebar to quickly preview files, similar to macOS Quick Look. It supports over 100 formats, including images, videos, documents, code, archives, and 3D models.

LanguageC#DTDesktop productivityDTDesktop appOriginalquicklook
25K

RHI

A Windows game graphics enhancement tool that auto-scans games and one-click installs ReShade and matching HDR mods, with DLSS version switching, system HDR toggling, frame rate limiting, and NVIDIA driver config management.

LanguageC#DTLifestyle & entertainmentDTDesktop appDTWindows
1.8K

flameshot

Open-source cross-platform screenshot tool built with C++ and Qt. It adds arrows, text, shapes and mosaics to captures, with delayed capture, clipboard copy and Imgur upload on Windows, macOS and Linux.

LanguageC++DTDesktop productivityDTDesktop appOriginalcapture
31K

bilirec

bilirec is a low-resource Bilibili live recording tool with minimal memory use. It has a built-in web admin UI and supports auto-record on stream start, auto-segmentation, stream-drop reconnection, and automatic MP4 conversion.

LanguageGoDTContent creationDTWeb appOriginalandroid
55

hey

Small HTTP load-testing CLI in Go. Sends a set number of requests or runs for a chosen duration at a given concurrency, then reports throughput, latency distribution and status codes. Supports HTTP/2, custom methods and headers.

LanguageGoDTSoftware developmentDTSecurity & testingDTCLI
20.4K

kserve

Kubernetes-based AI model inference platform supporting vLLM backend and OpenAI-compatible API, deployment of TensorFlow, PyTorch, scikit-learn, ONNX models, with autoscaling, canary rollout, and model monitoring.

LanguageGoDTData & operationsOriginalartificial-intelligenceOriginalcncf
6K

PMail

PMail is a Go-based personal mail server for quickly hosting domain email. It needs one server and domain, provides mail send/receive, a web admin UI, SMTP/POP3/IMAP, multi-domain/user support, and auto-renewing HTTPS certificates.

LanguageGoDTData & operationsDTWeb appDTWeb
2.1K

ccstatusline

Claude Code statusline customizer showing model, Git branch, token usage, context %, weekly quota and session duration in real time. It has an interactive config UI, custom items, multi-line bars and config export.

LanguageTypeScriptDTSoftware developmentDTAgent observabilityOriginalai-tools
13.1K

claude-opus-5-5-demo

A of Claude Opus 5.5 code generation: three 3D web games—pelican biking, shooting, and racing—each from a single prompt; the model autonomously developed, tested, and deployed them with no manual code edits.

LanguageJavaScriptDTSoftware developmentDTWeb appDTWeb
885

edgeever

AI-native personal notes app, Evernote-style three-column layout, free on Cloudflare. REST API, MCP and CLI let agents like Claude Code read and organize notes; multi-device sync, Mermaid diagrams, version history, Markdown and rich text.

LanguageTypeScriptDTResearch & learningDTAgent extensionOriginalai-agent
1.7K

microlighter

Microlighter is a zero-dependency web code highlighter using the CSS Highlight API. It avoids per-token span tags for cleaner DOM, weighs ~2KB minified, offers 10 themes, 30+ languages, editable code blocks, and auto-highlighting.

LanguageJavaScriptDTSoftware developmentDTLibrary / SDKOriginalcss
969

openmouse

Browser-based gaming mouse control panel requiring no driver install. Connects via WebHID to view device info and adjust DPI, polling rate and other settings, supporting Logitech, Razer, Corsair, HyperX, VGN and ATK mice.

LanguageTypeScriptDTLifestyle & entertainmentDTWeb appOriginalJavaScript
2.1K

figures4papers

A collection of Python scripts and AI Skills for creating academic paper figures, supporting comparison bar charts, composition breakdown diagrams, trend charts, and other scholarly chart types.

LanguagePythonDTResearch & learningDTAgent extensionOriginalacl
7.7K

flet

Flet: Python cross-platform app framework via Flutter. Build web, desktop, and mobile apps for iOS, Android, Windows, macOS, Linux, browser with Python. Material/Cupertino widgets, NumPy/pandas on mobile, App Store/Google Play packaging.

LanguagePythonDTSoftware developmentDTLibrary / SDKOriginalcross-platform
17.2K

kr8s

kr8s is a kubectl-inspired Kubernetes Python client library with sync and async APIs for fetching resources, scaling, creating Pods, and port forwarding.

LanguagePythonDTData & operationsDTLibrary / SDKOriginalasyncio
982

linkding-cn

A self-hosted bookmark and read-later tool forked from linkding with a Simplified Chinese UI. Offers web snapshots, article extraction, highlight annotations, pinyin tag search, a data dashboard and easy out-of-the-box deployment.

LanguagePythonDTResearch & learningDTWeb appDTWeb
388

pywebview

A lightweight Python WebView wrapper for building native desktop apps with web technologies. It enables two-way frontend-Python communication, reuses system web components for small builds, and supports Windows, macOS, Linux, and Android.

LanguagePythonDTSoftware developmentDTLibrary / SDKOriginalcef
6.1K

broot

Rust terminal directory browser and tree/ls alternative. Shows large folders as a concise tree, ignores .gitignore, supports fuzzy/regex/content search, quick jump, multi-panel file ops, previews, batch commands, and custom shortcuts.

LanguageRustDTSoftware developmentDTCLIOriginalbalanced-bfs-descent
13K

numbat

Numbat is a scientific calculator with programming-language capabilities, designed for calculations with physical units. It supports unit conversion, custom units, constants, and functions, usable via CLI or browser.

LanguageRustDTResearch & learningDTCLIOriginalcalculator
2.7K

window-switcher

A portable Windows window switcher that lets you press Alt+` to cycle between multiple windows of the same app, with Alt+Tab app switching, custom hotkeys, conflict blacklist, and current-virtual-desktop-only modes.

LanguageRustDTDesktop productivityDTDesktop appOriginalwindows-rs
1.1K

handraw-style

Codex skill for hand-drawn AI image gen. 278 styles, 120 layouts, 30 palettes; creates bilingual prompts from IDs/themes, recommends styles/colors, supports social cards, infographics, comics, image/text modes, GPT Image/Midjourney/SD.

LanguageHTMLDTContent creationDTAgent extensionOriginalRust
3.6K

skills-manager

Cross-platform tool centralizing AI agent skills in a local and syncing them to Claude Code, Codex, and Cursor. Installs from Git, folders, archives, and skills.sh, with per-project management, update checks, and tag filtering.

LanguageRustDTSoftware developmentDTAgent orchestrationDTDesktop app
5.2K

srt-whiteboard-animation

An AI skill that turns SRT subtitles into whiteboard hand-drawn videos. It parses subtitles, splits scenes, generates storyboards and line art, animates elements in sync with captions, draws and colors progressively, then exports MP4.

LanguagePythonDTContent creationDTAgent extensionOriginalai-skill
3.7K

threejs-architecture-effects

AI skill for Codex, Claude Code and Cursor that builds Three.js 3D Chinese ancient architecture sites layer by layer (brick wall, timber frame, dougong, eaves) with code-generated materials, timeline replay, view rotate/zoom and eave close…

LanguageTypeScriptDTContent creationDTAgent extensionOriginalRust
396

birth

Free, open-source macOS startup manager for viewing and managing login items, daemons, and background programs. Search by name, path, or PID and disable or remove them in one click.

LanguageSwiftDTDesktop productivityDTDesktop appDTmacOS
527

Thaw

Thaw is a free, open-source macOS menu bar manager that shows or hides icons on demand and brings them back via hover or hotkey. It switches layouts by display or Focus mode and auto-shows icons based on battery, Wi-Fi, and more.

LanguageSwiftDTDesktop productivityDTDesktop appOriginalmacos-app
11.6K

tinycast

A minimal macOS launcher written in Swift with under 100MB memory use. Features file search, clipboard history, currency conversion, code snippets, window management and AI chat, plus Raycast extension compatibility.

LanguageSwiftDTDesktop productivityDTDesktop appDTmacOS
7.7K

vphone-cli

Virtual iPhone tool for Apple Silicon Macs: creates and manages VMs via Apple's virtualization framework, run through a graphical launcher or CLI, with file browsing, screenshots/recording and clipboard sync.

LanguageSwiftDTSoftware developmentDTCLIDTDesktop app
14.7K

byoungd / up

An advanced personal-growth guide covering life advancement, AI learning, and English learning, intended to help readers improve themselves.

LanguageJavaScriptDTResearch & learningDTContent / resourceOriginalchinese
64.9K

iDvel / rime-ice

Rime configuration for the Wusong Pinyin scheme and a long-term maintained Simplified Chinese lexicon.

LanguageLuaDTDesktop productivityDTContent / resourceOriginalrime
19.5K

hugo2046 / QuantsPlaybook

A quantitative research project that reproduces broker quantitative (financial engineering) research reports, collecting the strategies and implementations for quantitative investment research.

LanguageJupyter NotebookDTResearch & learningDTContent / resourceOriginalquant
6.3K

lizhipay / acg-faka

PHP-based source code for a personal card-issuing system aimed at ACG/anime digital goods, letting users set up an online store for automated card sales and delivery.

LanguagePHPDTBusiness & growthDTWeb appDTWeb
5.7K

jeecgboot / JeecgBoot

Enterprise AI low-code platform that generates frontend and backend code, even a whole system, from one sentence. AI Skills build flows, forms, reports and dashboards;

LanguageJavaDTSoftware developmentDTAgent extensionOriginalactiviti
48K

jaywcjlove / linux-command

A Linux command reference and search tool offering a searchable collection of Linux command manuals, detailed explanations and learning material.

LanguageMarkdownDTResearch & learningDTWeb appOriginalbash
37K

AstrBotDevs / AstrBot

AI Agent Assistant & development framework that integrates lots of IM platforms, LLMs, plugins and AI feature, and can be your openclaw alternative. ✨

LanguagePythonDTSoftware developmentDTAgent runtimeOriginalagent
41.2K

Semporia / TikTok-Unlock

Unlocks TikTok on iPhone and iPad without removing the SIM card. Supports TikTok and TikTok TestFlight, plus region switching, video posting, live streaming, likes, comments, and direct messages.

LanguageJavaScriptDTLifestyle & entertainmentDTMobile appOriginaltiktok
12.1K

ClimbSnail / HoloCubic_AIO

HoloCubic all-in-one firmware built on ESP32-Arduino, offering a weather clock, photo album, video playback, desktop screen casting, web service, and Bilibili follower display.

LanguageCDTLifestyle & entertainmentDTWeb
1.4K

Lattice

Lattice reshapes your text through multiple language paths, creating a fresh expression while preserving the original idea.

DTContent creation
86

vantage.ai

Vantage is a free, open-source cost and usage monitor, guardrail and session log for coding agents.

DTSoftware developmentDTAgent observability
77

Okara

Okara is an AI CMO. Enter your website and it studies your product, competitors and brand voice, then runs 10+ agents for SEO, AI search, Reddit, X, LinkedIn, creators and UGC video. You approve every draft and it publishes.

DTBusiness & growthDTAgent orchestrationDTWeb app
190

SaleSmartly

SaleSmartly brings customer conversations from WhatsApp, Instagram, Messenger, TikTok, Telegram, LINE, WeChat and more into one workspace.

DTBusiness & growthDTVertical agentDTWeb app
265

Harness Router

Harness Router is a decision layer for AI coding agents that makes tool selection faster, cheaper, and more reliable before execution.

DTSoftware developmentDTAgent orchestrationDTSkill / plugin
75

MCP Connectors by Databox

Connect your AI Analyst to the tools your business runs on. It pulls context from your CRM or support desk, so every answer reflects what's happening in your business, and it can act on what it finds.

DTBusiness & growthDTAgent extensionDTMCP service
399

Vitals 

Activity Monitor lists a thousand processes, a hundred of them called Google Chrome Helper. Vitals adds every helper to the app that launched it, so you see 60 apps instead of 1,000 processes, each with one figure for memory, CPU, energy,…

DTDesktop productivityDTDesktop appDTmacOS
252

Arc

Arc is a free AI assistant that works on whatever screen you're already on. You don't have to copy text into a chatbot. Call Arc up over any app and it reads the screen for you.

DTDesktop productivityDTVertical agentDTDesktop app
74

Sayble

Sayble is a real-time AI copilot for sales calls, client meetings and negotiations. It hears what the other person just said and gives you one clear line to say next, plus a backup, in about half a second.

DTBusiness & growthDTVertical agentDTDesktop app
75

Microsoft Copilot

The new Copilot connects the tools people rely on with the next generation of capabilities they’ll need to build, customize and scale AI across work.

DTDesktop productivityDTContent creationDTWeb app
125

VibeDefend by CybeDefend

VibeDefend installs on your AI coding agent (Claude Code, Cursor, Windsurf, Copilot, Codex and more) with one command. From then on the agent writes with your business rules, mined from your repo, and your security rules in its context.

DTSecurity & testingDTSoftware developmentDTAgent extension
235

MuM

Your Markdown lives in a dozen folders. Most of the time you don't want to write — you just want to read one section. Every Markdown tool is a writing app with a preview pane.

DTDesktop productivityDTDesktop appDTmacOS
91

Mochi

Mochi is a little pink blob who lives on your Mac. It floats around, naps, teases you about late nights and carries loose Desktop files into folders (never deletes, undo any move).

DTLifestyle & entertainmentDTDesktop productivityDTDesktop app
76

Shotcandy

Paste a screenshot. Get something lovely. Shotcandy is a free screenshot beautifier that turns plain into beautiful, share-ready images and videos in seconds, right in your browser.

DTContent creationDTWeb appDTWeb
128

FaveNest

FaveNest is a visual library for the links, notes, screenshots, PDFs, and places you save. Share from any app or click the heart in Safari, and Apple Intelligence writes the title, summary, and tags on your device, so nothing you save is s…

DTResearch & learningDTDesktop productivityDTMobile app
70

HN.watch – Videos of all Hacker News posts

Hi HN, I’m Per, founder of Scrimba (YC S20). We’ve spent the last decade teaching people how to code with an HTML-based video format. We’ve now plugged an LLM into it, so that people can create explainer videos about anything.

DTContent creationDTWeb appDTMCP service
—

Hntui – A TUI for Hacker News

hi there! i'd like you to try out a tui i made for browsing hackernews. it's built using opentui and also effect (learning experiment). i really like it and i think you will too!

LanguageTypeScriptDTLifestyle & entertainmentDTCLIOriginalhacker-news
115

Durable Actor Session Protocol

Hey HN I'm the author of Jido, an Elixir Actor & Agent SDK. I was building out an Elixir Durable Actor/Agent server and hit a wall regarding communication protocols. I reviewed all the existing protocols;

DTSoftware developmentDTAgent runtimeDTLibrary / SDK
—

Jevdit – a social network moderated by Jev

Hey HN! I got this idea that Jev would be a good fit for content moderation, so I investigated how good it is exactly, see my write up at https://tn1ck.com/blog/jevdit And it is actually quite good at it and dirt cheap.

DTLifestyle & entertainmentDTWeb appDTWeb
—

Panda, the world's first personal AI computer

We're building an AI computer for consumers, most of whom are quite hesitant with existing services due to privacy concerns and because of costs that add up when using various AI tools.

DTLifestyle & entertainment
—

Fusor – Like Vue, but the logic is Rust

I've been building Fusor. It's a reactive web framework for Rust where the templates are plain HTML files, so there's no markup living inside Rust macros like view! or rsx!.

DTSoftware developmentDTLibrary / SDKDTWeb
—

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