
NodeESP — Visual programming for ESP32
Visual node-based programming environment for creating GPIO logic and MQTT workflows on ESP32 devices.
@NodeESP · X
- Project for sale
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Visual node-based programming environment for creating GPIO logic and MQTT workflows on ESP32 devices.
@NodeESP · X
- Project for sale

DevToolAdda provides 100+ free online developer tools, formatters, decoders, CSS generators, Regex testers, and cheat sheets with 100% private, client-side browser processing.
@suketudigital · X

Convert OpenAPI specs and databases into MCP tools without coding.
mhmt_dmr · HN
MCP Gateway – Turn existing APIs and databases into MCP servers

Format JSON, minify code, test regex, merge PDFs and more: free, fast, privacy-first developer tools.
@546_md · X
I recently launched CodeToolsStudio, a collection of privacy-first developer tools for things like JSON, JWT, Regex, Base64, timestamps and more. you can test it here: 🌐 I'd genuinely appreciate feedback on what you'd improve or add to it

Convert Markdown into typeset PDFs and EPUBs with custom fonts, covers, and colors.
@hiddenbydigital · X

Secure GitHub pull requests with hardware authentication and OTP verification.
jallmann · HN
> want without a PR process that requires hardware authentication or proof of presence Just curious, what do you use for this? I built OTP Guard [1] a few years ago for exactly this problem, although I haven't seen any alternatives in the space. Does GitHub have something built-in now? The original framing was more "local malware compromising your GitHub account" ... it never occurred to me that the malware could be a LLM. I really should update the page. [1] https://otpguard.com

Transcribe and summarize YouTube videos, podcasts, PDFs, and MP3/MP4 files with AI.
sipsip.ai — 支持30+平台视频AI转录并提取摘要,订阅RSS可以每天发送早报

A fast, free, and modern collection of 100+ developer tools: JSON formatting, encoding, generators, converters, and more. No login required.
@messoudkhan · X

Search indexed open-source code and packages with version history, metadata, and dependency information.
@Jack_Timonen · X

Scores AI-generated ad creative and returns verdicts (run/fix/kill) via MCP and REST API.
ds246 · HN
Spendict – a performance marketer's verdict for AI agents, over MCP

Write and run code in your browser with AI code generation and auto-fix features.
@anish2good · X

Free developer tools organized as a map, featuring formatters, generators, and decoders.
@AntiaIuri · X
Just shipped DevErse 🚀 A curated directory for dev tools & AI utilities built to speed up your workflow. It's super early stage — check it out and let me know your thoughts! 👇 🔗 #buildinpublic #indiehackers #laravel #reactjs