letsgogogo · V2EX

做了一个串珠子的工具，支持拼豆。 我做了一个在线串珠图案工具 Loomet 。 可以画图案、自动算珠子数量、导出 PDF 。也支持拼豆模式。 https://loomet.app

@Laxman101058405 · X

A few days ago I needed to measure something from a photo. Instead of searching for the perfect tool, I thought: "Why not build it?" So over the next 2 days, I built a Photo Measurement Tool using Cursor. If you try it, I'd love to know what you think.

@StripeCopilot · X

@amarHarolikar · X

I have rebuilt the Markdown to PDF converter on You paste your text or Markdown, you get a properly typeset PDF back, and your AI agent can do the same over MCP or a plain API call. No sign up, no key, free. Had built this a long time back as a fairly basic thing and then left it alone, and over the last few weeks I could see a rise in traffic. Took a fresh look and found that lot of it was not rendering. Headings below a certain level were being dropped, nested lists were coming out flat, and code blocks were losing their formatting. What is there now: - Page breaks where you want them, using :::pagebreak::: on a line by itself - Tables, nested lists, task lists and code blocks all render properly - Greek letters, maths symbols, arrows and the rupee sign come out right - Emoji and symbols do not break the render - Plain dot txt files keep their line breaks Live tool at API & MCP docs (humans): API & MCP docs (AI)

u/SugarPerfect6150 · Reddit

I built a tool to track LeetCode progress and auto-schedule spaced repetition reviews I have been grinding leetcode problems and kept forgetting problems I solved 2-3 weeks ago. So I built GrindMate to fix this. You just type "solved two sum easy 15 min" and it handles the rest: Schedules spaced repetition reviews at day 1, 3, and 7 Sends daily email reminders when reviews are due Tracks NeetCode 150 progress across 18 categories Shows which problems Amazon/Google/Meta frequently as

@WinkScope · X

Spending hours in writing estimates and then juggling between multiple apps to see the complete picture? We are here for you ;)

@dt_sqr · X

@KenziChenBuilds · X

Hey! Developer behind Always looking for feedback to make it better.

u/eXt3000 · Reddit

I built a calorie tracker that lives entirely inside Telegram — no app store, no signup. Here are the ugly parts too Like a lot of people I quit calorie trackers because typing "chicken breast, 143 g" fifteen times a week is misery. So I built NutriAI: a Telegram Mini App where you photograph your plate and AI (Gemini) does the rest — calories, macros, 8 micronutrients, plus a 0–99 "sanity score" per dish that tells you how reasonable the meal is without lecturing you. Why Telegram instead

@WorksBreaks · X

Building Work Break; an AI-powered break and productivity assistant for teams. It helps you manage breaks, tasks, leave, meetings, and stays fully synced with Google Calendar all in one place. Would love your feedback! 👉

caudena · HN

WeaveScope – Elixir native observability for AI agents

victor_edka · HN

HRAG – Hybrid RAG on €116/month of Hetzner, officially benchmarked