The full gallery
Tech stack
60 projects
Convert PDF to EPUB free for text documents. Automatic chapter detection, a working table of contents, and reflowable text sized for Kindle and any e-reader.
@tashkan02 · X
Convert videos into text prompts for AI image generators like Midjourney and Stable Diffusion.
Video to Prompt — 将视频内容转换为可用于 AI 创作的提示词
Optimize electricity spending by connecting utilities, EVs, and solar to find ideal charging times.
@gleam_energy · X
Gleam — an energy management tool that helps people understand, optimize, and save on electricity. Utility data, EVs, solar, batteries, and weather combine to answer questions like "Why did my bill go up?" or "Would switching rate plans save money?"
Free online tools for Pakistan & worldwide. Compress PDF, convert HEIC to JPG, USD to PKR, EMI calculator, QR generator & 170+ utilities. No sign-up.
@UtilVox · X
Select a crop to calculate its value, mutations, and trading profit.
growagarden-calculator — 页面精美、功能强大的 《Grow a Garden》 游戏交易 / 攻略工具，在疯狂圈粉 1600 万 + 玩家的 Roblox 神作《Grow a Garden》中，想靠“三秒算账”闯荡菜市？这就是 Grow a Garden Calculator 存在的意义：帮你秒算作物价值、预测突变收益，还附送一整套天气 / 交易 / 攻略工具，专治“不会算
Collect and display customer testimonials with analytics to track conversion impact.
@AmyVaradkar · X
It solves the scattered testimonial problem. Freelancers and agencies collect feedback via shareable form, display it anywhere, get real analytics on what converts. Beta access available right now which gives free pro plan for 15 days.
Paste your URL. See where your site leaks conversions — quoted from your live page. Free preview, no signup.
@LaurentiuPetran · X
SiteScoreAI — paste a URL, it quotes the sentence on your live page that’s leaking conversions.
Convert PNG, JPG, or WebP to clean vectors (SVG, EPS, DXF) in seconds. Plus AI background removal, upscaling, and watermark removal — all in one tool. Free to start.
@AiVectorizer · X
free AI image toolkit. Vectorize, remove backgrounds, upscale, remove watermarks.
Create sales bills and invoices with parties, items, discounts, and payment details.
@UmairNazee1 · X
Check out what I just built with Lovable!
Use 100+ free online calculators for math, chemistry, physics, loans, health, and AI costs—no signup needed.
u/averageChilean · Reddit
Built a free tool site to help my brother study — now has 100+ tools, would love feedback My brother's in high school and needed something more visual to study chemistry, physics, and math, so I used Claude to build him a simple site with interactive calculators and visualizers. I'm not a programmer or from a tech background, so without AI this wouldn't have happened, at least not this fast. It ended up helping him a lot more than I expected, so I kept expanding it, added a bunch of other
Free calculators for DIY home projects like woodworking, decks, concrete, and drywall.
u/CaboWabo55 · Reddit
Built a DIY calculator site in a weekend — betting on "boring tools" over content After my last project (an AI debate platform) got rejected by AdSense for "low value content," I went the opposite direction: no content treadmill, no AI features, no backend. Just genuinely useful calculators. studandslab.com — 10 free calculators for woodworking and home projects (board feet, stair stringers, concrete, drywall). Everything runs client-side, so hosting is free and every visitor costs me $0.
Generate 3D models, characters, and animations from images or text.
zaczuo · Product Hunt
V2Fun Generate 3D character with 8K textures and AI motion capture
