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DEV TRENDS / DAILY DISCOVERIES

Oct 21, 2026 · What developers are building

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

SliceLoft

Free browser-based 3D printing file tool that runs locally without uploads: convert Bambu Studio/OrcaSlicer 3MF projects to STL by plate or part, convert STL to 3MF, OBJ/STEP to STL, preview 3MF/STL files, and generate custom support-free…

DTContent creationDTWeb appDTWeb
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Flux3Max

Web AI video generator that turns text, a single image, or first/last frame pairs into 5-20s videos with audio at 720p/1080p in multiple aspect ratios. Google login, one free 5s video, then non-expiring pay-per-second credits.

DTContent creationDTWeb appDTWeb
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ViewHTML

HTML viewer with live side-by-side preview of HTML/CSS/JS and local .html files, handy for reviewing AI-generated HTML. Free, no signup; share as link, QR code, PNG or PDF. Also ships share Skills for Claude Code, Codex and Cursor.

DTSoftware developmentDTAgent extensionDTWeb app
0

Fondo Blanco

Spanish-language one-click tool that removes photo backgrounds and replaces them with white while keeping original size. Supports JPG/PNG/WebP; for Amazon, Mercado Libre and Shopify product images, ID and avatar photos; free, no signup.

DTContent creationDTWeb appDTWeb
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Tangbao

Tangbao offers its self-developed "Nenggong Zhiren" large model for free, supporting chat and text-to-image, with the new tangbao-vme50-flash model now available.

DTContent creation
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TradeSniper

An A-share and futures market data site with built-in strategies and T+0 trading assistance, built for monitoring markets and short-term trading on mobile.

DTBusiness & growthDTWeb appDTMobile app
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MyFateGPT (Zi Wei Life Chart)

Chinese Zi Wei Dou Shu charting tool with AI plain-language readings: free twelve-palace chart and partial trial; full seven-chapter report at ¥299/US$39 with PDF, plus guides on birth time, lunar leap months and chart variants.

DTLifestyle & entertainmentDTWeb appDTWeb
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AjaxModel Release Tracker

A no-login tracker aggregating official AI model release sources, timelines, and local-run guides; unofficial and does not provide weights for unreleased models.

DTResearch & learningDTWeb appDTContent / resource
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SongFromVideo

A video song-identification tool: paste a TikTok, YouTube, Instagram, Facebook or X link, or upload audio/video, to find the background music. First identification is free after signing in.

DTContent creationDTWeb appDTWeb
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Wan API

API relay for Wan 3.0/Prime/Pro and Seedance 2.0/2.5 video models, billed per second ($0.0275/s at 480p, ~55% of official pricing). Supports text-to-video, first/last-frame and multimodal reference input, up to 30s with audio by default;

DTContent creationDTLibrary / SDKOriginal程序员版
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Ride a Pet Wiki

An unofficial Ride a Pet wiki that organizes pets, eggs, rebirths, mutations, equipment, and food so players can look them up anytime.

DTLifestyle & entertainmentDTContent / resourceOriginal游戏版
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Spoiler-Free Replays: Open-Source LoL Match Replay Viewer

Open-source spoiler-free replay tool for League of Legends esports on Bilibili. It hides scores, thumbnails, duration, progress bar and total game count, starts a match from game one and auto-advances to the next game.

LanguageTypeScriptDTLifestyle & entertainmentDTDesktop appOriginalanti-spoiler
2

OpenWrt / VPS Network Troubleshooting Toolkit

MIT-licensed OpenWrt/VPS network troubleshooting toolkit: quick-check script runs offline demos by default, optional budgeted curl HTTPS probes, Chinese and JSON reports from one result set, plus sanitized real cases and rollback records.

LanguagePythonDTData & operationsDTCLIOriginalbbr
1

Agentail: AI Coding Agent Status Island for Linux Desktops

GNOME top-bar capsule that shows what each AI coding agent is doing on Linux and remote servers via SSH. Turns orange on pending approval; click for per-session cards, Claude Code and Codex quotas. Runs locally, no account or telemetry.

LanguagePythonDTSoftware developmentDTAgent observabilityDTDesktop app
0

Open Doubao: Open-Source AI Agent That Operates Phone Apps

Open-source version of Doubao Phone: an AI agent that operates apps on your phone. Ships an Android 17-based OS for Pixel 6 Pro and a standalone Android 11+ app needing no ADB or root, plus a desktop workbench for sending tasks and watchin…

LanguageKotlinDTTravel & mobilityDTDesktop productivityDTVertical agent
26

Dayside: Mac Menu Bar World Clock With Live Sky

Open-source macOS menu bar world clock: each city shows live sky by coordinates so you can see if someone's awake. Paste chats or emails to detect times in 16 languages offline; rotates late-night meeting slots. GPL-3.0-only.

LanguageRustDTDesktop productivityDTDesktop appOriginalapple-silicon
3

Restoria: Scan Archive Tool for Old Windows

Restoria converts scanned bound archives into upright, clean, standard A4 pages. It runs as a single offline file on Windows 7 SP1 through 11, keeps originals untouched, and only rotates when physical evidence such as binding holes is foun…

LanguageC#DTData & operationsDTDesktop appOriginalarchive
0

EquationRescue: Item-by-Item LaTeX Formula Repair in DOCX

Browser tool that reads a DOCX, lists delimited LaTeX formulas for item-by-item preview and selection, then exports a copy with native OMML markup. Files stay local; unsupported syntax keeps source text. Experimental, no matrices or OCR.

LanguageTypeScriptDTResearch & learningDTWeb appOriginaldocument-conversion
0

stablyai / orca

Orca is the place for working with a fleet of agents (e.g. Grok Bot, Claude Code). Run any coding agent with your own subscription. Available on desktop, mobile and remote runtime.

LanguageTypeScriptDTSoftware developmentDTAgent orchestrationOriginalade
101K

supabase / supabase

The Postgres development platform. Supabase gives you a dedicated Postgres database to build your web, mobile, and AI applications.

LanguageTypeScriptDTData & operationsDTLibrary / SDKOriginalai
112.9K

akitaonrails / ai-memory

Solution for long term memory for agent coding CLIs and to facilitate handoff between different agent vendors

LanguageRustDTSoftware developmentDTAgent extensionDTTerminal
12.2K

ruanyf / weekly

A weekly newsletter for tech enthusiasts, published every Friday, sharing technology news and observations.

DTResearch & learningDTContent / resourceDTWeb
106.7K

langbot-app / LangBot

Platform for building agentic IM bots across Discord, Slack, LINE, Telegram, WeChat, Feishu, DingTalk, QQ and Matrix, with agent and knowledge-base orchestration, a plugin system and many LLM/tool integrations (ChatGPT, Claude, Gemini, Oll…

LanguagePythonDTSoftware developmentDTAgent orchestrationOriginalagent
18.4K

521xueweihan / HelloGitHub

HelloGitHub curates interesting, beginner-friendly open-source projects on GitHub, helping developers discover approachable projects for learning and exploration.

LanguagePythonDTResearch & learningDTContent / resourceOriginalawesome
183.5K

jeequan / jeepay

Jeepay is an open-source payment system for internet businesses, supporting both service-provider and standard merchant modes. It integrates official WeChat Pay, Alipay and UnionPay QuickPass APIs and supports aggregated QR code payments.

LanguageJavaDTBusiness & growthDTWeb appOriginaljeepay
6.5K

zhayujie / CowAgent

Open-source personal AI assistant & Agent Harness. Plans tasks, runs tools and skills, self-evolves with memory and knowledge. Multi-agent, multi-model, multi-channel. Lightweight, extensible, one-line install.

LanguagePythonDTDesktop productivityDTVertical agentDTAgent runtime
47.5K

XIU2 / CloudflareSpeedTest

Tests Cloudflare CDN latency and download speed to identify the fastest preferred IP; also works with other CDNs and sites that resolve to multiple IPs.

LanguageGoDTData & operationsDTCLIDTWindows
29.5K

PrivOS

PrivOS is the all-in-one AI-native operating system for enterprise work. Chat, Docs, Kanban Tasks (lists with table and Kanban views) and tailored MCP apps live in one place, and AI agents act on them: @-mention a list, file, folder or app…

DTContent creationDTVertical agentDTWeb app
69

Koi

Most people pay for three tools: a dictation app, a meeting notetaker and an AI assistant. Koi is all three in one Mac app. Tap Fn + ⌥ and your words type into any app, offline and unlimited.

DTDesktop productivityDTContent creationDTVertical agent
68

AskDoozy

Doozy sits in your Slack. Someone mentions it in a thread with a real task ("why was Acme charged twice?

DTBusiness & growthDTData & operationsDTVertical agent
66

Woven Video

Woven is a full AI video editor for Mac. Import your footage, ask for the edit in chat, and fine-tune it on a real timeline, with captions, music, sound effects and generated shots. For YouTube videos, Shorts, podcasts and more.

DTContent creationDTDesktop appDTmacOS
57

BAND for Developers

Running multiple coding agents shouldn’t mean becoming their project manager. BAND lets them work together.

DTSoftware developmentDTAgent orchestrationDTAgent observability
220

Scout by Fini

Scout is an AI coworker for support teams, on Slack. Ask in plain language: it reads tickets, reviews and call transcripts, finds the pattern and drafts the fix. A person approves every change. Access is set up with the Fini team.

DTBusiness & growthDTVertical agentDTWeb app
79

Tend

Tend is a personal AI agent you text. No new app: it lives in iMessage or SMS and works inside your own accounts: Gmail, calendar, Shopify, QuickBooks, HubSpot.

DTBusiness & growthDTDesktop productivityDTVertical agent
82

NativeShip

NativeShip helps SaaS teams launch and maintain an n8n integration from their existing API. Nodes follow n8n's official guidelines and are ready for verification, with standard publishing and maintenance built in.

DTSoftware developmentDTWeb appDTWeb
100

UseIt Studio

UseIt is an AI design studio for things you can hold. Describe what you want in one sentence. UseIt asks what a designer would ask, designs it with you, and lets you refine any detail by pointing at it.

DTContent creationDTWeb appDTDesktop app
256

Needle

Find your perfect leads and reach out by prompting Claude, ChatGPT, or Grok. Wherever your ICP are, on LinkedIn, Instagram, or email.

DTBusiness & growthDTVertical agentDTWeb app
215

Intelli for ChatGPT & Claude

Intelli is now a plugin in ChatGPT’s directory, and works in Claude and any MCP client. Ask in plain language and your AI assistant handles your WhatsApp, Instagram and website conversations: summarise unanswered chats, launch campaigns, b…

DTBusiness & growthDTAgent extensionDTMCP service
75

Lea by LeanAIOS

Meet Lea, the autonomous AI platform built specifically for construction GCs and PMs. With 18 specialized roles, Lea automates quantities takeoff, manages FIDIC contract notice deadlines, tracks 6-week lookahead schedules, and runs 3D site…

DTDesktop productivityDTVertical agentDTWeb app
77

ilha

ilha is a native Mac app that lives in the notch (a small pill on other displays) and shows how much of your Claude Code, Codex and Grok Build limits you've used: the 5-hour and weekly windows, when they reset, and whether you're on pace t…

DTSoftware developmentDTAgent observabilityDTDesktop app
89

Mouse-1

An agent makes hundreds of small decisions during a task. We built Mouse-1 to handle these decisions, saving you time and money. Its 163x cheaper, and 65x faster than GPT-6 Sol.

DTSoftware developmentDTAgent extensionDTLibrary / SDK
95

The Brains

The Brains turns founders, CEOs and investors into searchable MCP servers built from their public talks, essays, interviews and posts.

DTResearch & learningDTAgent extensionDTMCP service
98

SimCity, but with Permits

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.

DTLifestyle & entertainmentDTWeb appDTWeb
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I told people I'm a convicted felon after 20 years of hiding it

Hi there. I was engineer number 3 at Eventbrite and founding engineer at Reforge. I've created a dozen or so startups myself and have worked in many others, like Instacart. All this time, no one knew that I was a convicted felon.

DTContent creationDTContent / resource
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One click flight booking in Claude

tldr; Travelers wanted to find and book flights super fast in Claude, so we built this. -- BonBook started as flights via email because I was flying once a week in '24 and the UX got to me. Since then we'

DTTravel & mobilityDTAgent extensionDTMCP service
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Gauge CLI – Open-Source Hillclimbing for Agent Experience

Hi HN! We're releasing an open-source CLI for hillclimbing Agent Experience. That means optimizing your agent-facing surfaces (Skills, CLIs, SDKs, and docs) so that your users' coding agents can easily use your product.

LanguageTypeScriptDTSoftware developmentDTAgent observabilityOriginalagent-skills
5

Skillsync – Coding agent memory but it's just search

I built a claude mod that searches every session (across harnesses) on each prompt. On every prompt, it runs a series of decision models to pick the right sessions + messages and adds anything relevant to the context.

DTSoftware developmentDTAgent extensionDTSkill / plugin
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Multiplayer AI

so recently i was working on a hackathron project with a friend and we were both using claude code however as it so happened we had to code one at a time in order to avoid file conflicts and interfering with each others work so i made a si…

DTSoftware developmentDTAgent orchestrationDTClaude Code
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