
FreetCode — Free Algorithm Interview Prep
Practice algorithm interview problems with solutions and interactive visualizers.
@Galliard232634 · X
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Practice algorithm interview problems with solutions and interactive visualizers.
@Galliard232634 · X
Come study with me on

Browser-based USB serial terminal for hardware debugging and communication.
@thembeddevguy · X
The USB Type-C <-> RS-232 dongle got its well-deserved (and totally vibe-coded) browser-based serial terminal! No ads, no tracking, and the cookies are only there to store the settings.

Analyze chess games with natural language explanations using an open-source browser tool with no login required.
u/ICARUS_2X · Reddit
Spent 7 months building a FOSS platform for natural-language chess analytics (No LLM) Hey guys, I've released CHONSE2, an open-source game review platform that offers unlimited analysis and move explanations without using hallucination-prone LLMs, running entirely in your browser. chonse2.com But Lichess is free, so why use this? Some have asked. It expands on Lichess's feature set a few different ways: Full analysis (accuracy/elo estimations/eval graphs, etc) requir

Secure client portal for sharing files, answers, and approvals with real-time status visibility.
@danielkleach · X
is a branded client portal for files, answers, sign-offs, and signatures. No more scattered email threads, docs in Google Drive, or confusion about who is waiting for whom. Business and client both see what is done and what is in progress on both sides, in

Copy-paste 60 website widgets including 12 AI agents—chat, search, booking, voice—no signup required.
@TiyebDomainking · X
The AI widgets your site is missing.

Ask a yes/no question and get an AI-powered tarot card reading for instant guidance.
Yes/No 塔罗 AI — 融合 AI 技术与塔罗洞见,快速获得"是"与"否"解答

Protect your email and calendar by requiring unknown senders to solve a CAPTCHA or pay a fee.
felixdoerp · HN
Hi HN, The one thing AI reliably does is generate noise. Half the tools I see launch are just machines for producing more noise across more channels. And people are starting to see this in the form of emails in their inboxes as spam filters are struggling. There used to be a useful signal in email: the effort a sender put into customizing a message was a rough proxy for how relevant it actually was. AI killed that. Now it's customized slop with the appearance of effort with none of the cost. It is painful that the open internet / open channels have been abused like this. Captchainbox applies the idea of proof-of-work to email. If a sender is willing to do a bit of work to reach you, the message is more likely to be worth your time and the sender more likely to be real. The work is a traditional captcha. You can also set a pay-to-deliver amount if you want more friction. The proceeds of the delivery payment after transaction costs go to the Internet Archive and the EFF. The tool curr

Understand code flow and app connections before asking AI to help modify your app.
@minmuner_devlog · X
Thanks for the feedback; I’m open to anything.

Free AI image editor with 12 tools for enhancement, watermark removal, style transfer, and background editing—no login needed.
AI Image Editor — AI 图片处理工具,支持图片增强、去水印、抠图、风格转换、线稿提取等十余种功能。无需下载软件,无需注册,上传图片即可一键生成专业效果。适用于电商设计、社交内容创作、摄影后期、教育教学等多种场景,让图片编辑变得更智能、更高效、更简单!

Browser-based suite of 118 privacy-focused tools for images, PDFs, SEO, and media.
@ayan11200 · X
try this one Free solution

Review GitHub pull requests in a native app without opening github.com.
othmanosx · HN
I still don't like the fact that AI is adding more stuff for us to read, it's accelerating the code production but slowing down the code review. I built my own code reviewer as well ( https://pyor.review/ ), surfacing the important stuff first is the right track, but adding more stuff to read is daunting, but asking AI to just point you to what you need to focus on and skim the noise is what I'm leaning more towards.

Competitive coding arena where developers solve challenges and battle 1v1 with the community.
@md_shadann · X