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

Free tool to detect AI-generated text instantly, no sign-up required.
new_user___1862026e2883cc743d726f7 · Product Hunt
AI DETECTOR Probably the best AI detector with free no sign-up access.

Collection of 125+ free calculators for finance, health, legal, real estate, and travel—no signup required.
@Arafat3599651 · X
Just launched 🧮 125+ free calculators — mortgage, BMI, debt payoff, compound interest, calories & more. No signup. No ads. Everything runs in your browser instantly. #buildinpublic #webdev #react

Free AI chat with multiple models (Grok 4 Fast, DeepSeek V3.1) requiring no login.
Free AI for Everyone — 无需登录、完全免费的 AI(模型包括 Grok 4 Fast、DeepSeek V3.1 等)。可选择的模型以后可能会有所调整,但这个服务会长期提供,并且完全免费

Write, execute, and learn code in Python, Java, JavaScript, C++, Go, and Rust.
@francis7_a · X
Building - learning tools for devs and student. happy to connect.

Use 300+ free AI-powered tools for HTML, CSS, images, SEO, and more without registration.
AI 驱动的免费在线工具平台 — 提供 300+ 实用工具,无需注册即可使用

An AI-powered platform for solving and collaborating on math problems in a social context.
lemma1729 · HN
Hi HN, This is ProofTree, and in TLDR: it is a platform where you can chat with an AI to do math, the way you already do, with context-awareness and knows how you personally do math, connected to the fora of other live human mathematicians. So, when you are talking to an AI about a proof at 3 am, and you need a human expert looking at it, or a discussion around it, like you do on StackExchange, this is it! You need an approved email account to use it, so please write here if you would live to try it out.

Free browser-based tools for image compression, PDF merging, QR code generation, and AI text detection.
@ChazXtine · X
I have been working on which is basically a site for free tools no pay wall. Currently I'm at 20 tools but I will be slowly expanding it.

AI API platform offering faster and cheaper alternatives to Claude for developers.
@WebWrightAI · X

Write software functional specifications designed to work for both humans and AI.
@spec_tacul_ar · X
Specifications for humans and AI.

Generate AI videos and images using Sora 2, Veo 3, Kling AI, and other models—free images, paid video.
Sora 2 — For Video AI 一站式视频生成平台,使用Sora 2、Sora 2 Pro、Sora 2 Storyboard、Veo 3.1、Veo 3、Wan 2.5、Wan 2.2、Kling AI、Hailuo AI、Midjourney Video创建带音频的视频。

Generate and edit AI images for free with no login required.
FreeGPT2 — GPT Image 2 生成器网站,即时创建 AI 图像,无需登录