
LeetRevise — Spaced Repetition for LeetCode
Practice LeetCode problems with automated spaced repetition scheduling.
@JoydeepNath007 · X
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Practice LeetCode problems with automated spaced repetition scheduling.
@JoydeepNath007 · X

90+ free browser tools for converting, compressing, and calculating files locally.
u/Current-Parking-1296 · Reddit
dzzz.ai over 90 tools in one website privacy focus Hey r/SideProject , I kept uploading private invoices and contracts to random "free PDF tool" sites just to compress a file. Eventually it occurred to me that the browser can do this locally — so I built dzzz.ai : over 90 tools that run entirely on your device. PDF compress/merge, video trim and conversion, background removal, HEIC→JPG, document scanning with your camera, audio transcription, CSV cleanup. All WebAssembly — ffmpeg, Ghost

A sales dialer that consolidates prospecting, sequencing, dialing, and follow-up into one workflow.
sadidrahimi · HN
hello HN, let me tell you why i built boilerroom ( https://boilerroom.ai ). throughout my past endeavours in sales, the one thing that thoroughly pissed me off was living in a million places to execute one thing; the outbound motion this includes everything top of funnel like finding leads (be it inbound or outbound), researching, filtering for qualification criteria, throwing them in a sequence, engaging them via dialer, email, and linkedin, gathering context, all the way through bottom of funnel like discovery calls, demo calls, and post-sales activities what absolutely does not exist (or if it does, a piss-poor model) is a place to simply execute this work in one place why tf do i have to be on clay, or apollo, clicking around looking for leads, researching them around myself, put them in to some other garbage software to sequence to tell me when to make a call or send out automated emails, only to get a massive backlog of things I was supposed to do, which in turn makes my whol

Compress prompts and reduce LLM token costs by detecting duplicate tool calls.
@DeveloperL92487 · X
I built my first app in 60min And now I got $500 MRR in one month Check here if you are interested It’s a tool to reduce agent token consumption, speed up agent response, and clean up memory cache

All-in-one workspace for planning, researching, and launching new products.
u/ghost09822 · Reddit
Built a workspace app for planning and building products - Looking for any feedback HI all, I've been working on an app for the past few months called CreaFlow , which is an all in one tool for planning, researching and building new products. I come from a physical product design background and always have ideas for new products, but everything is always scattered across different notes, notion, miro and ai chats, so the idea with Creaflow was to bring everything into one place with differ

Task manager with Now, Next, and Someday buckets that sync between iOS and web.
u/dahooddawg · Reddit
I built a task manager that replaces priority levels with a hard cap on what "now" means Hey r/SideProject -- I built this for myself because every task manager I tried had the same problem: everything felt high priority. The core idea: instead of High/Med/Low (which fails because everything feels high), you get three buckets -- Now, Next, Someday -- and a hard cap on how many items "Now" can hold. When it's full, adding something new means consciously swapping it for something alread

NEURL-OS is a free 2-minute weekly calibration that transforms your weekly habits into a predictive model of your performance.
@NEURL_OS · X
Hey we’ve built NEURL-OS, a tool that turns daily habits into data and a weekly capacity score. For founders juggling constant decisions, it helps reveal what’s fueling your focus and output—and what’s quietly draining it. Try it free:

Uptime monitor and collaborative writing app built with FastAPI.
@andxh2 · X
took me a while, mainly self doubt but I finally get to quote this, built an uptime monitor and a collaborative writing app with FastAPI best part for me was the VPS setup and deployment process. yeah and vibe coding the frontend.

Manage equipment rentals, payments, and inventory tracking in one system.
@ShakibMd93031 · X
Built an Equipment Rental Management System to simplify rentals, payments, and equipment tracking. Looking for businesses interested in a demo or a customized solution.

Collaborative whiteboard for wireframes, flowcharts, and process design — no signup needed.
veau · V2EX
[产品自荐] 基于 Excalidraw,我做了一个更顺手、更全能的纯本地白板: 1NX 作为产品民工+重度 Excalidraw 用户。 在 AI 的加持下,基于 Excalidraw 做了一个更顺自己手、更全能的纯本地白板:**1NX.NET** 访问地址: https://1nx.net/ **核心解决日常画图、画交互、读取各种文件轻量化处理的问题。** 产品能力概览: * 无须注册,打开即用。完整兼容 Excalidraw ,旧图可直接导入继续编辑 * 优化画布操作手感和交互,解决存储满的问题,大量元素上依然流畅 * 流程图、脑图、原型、文档、代码和图片都能放在同一张画布 * 支持 Axure 、XMind 、draw.io 、Visio 、Mermaid 、PlantUML 等格式直接导入 * 代码块、PDF 、Word 、PPT 、Excel 可直接摊开阅读;无需打开软件 * 图片裁剪、切片、马赛克、高清放大、智能抠图一站完成(全单机完成) * AI 生成思维导图、流程图、以及汇报级别的 PPTX * 增强本地化单文件能力,全

Compare 700+ Azure VM prices across regions with real-time pricing data.
@honitec · X
做了一个每天自动刷新的模型定价 API 替代 LiteLLM,每天拉最新的推理定价 为什么需要「每天」? 因为 AI 模型价格一周一变 3月 $8/M → 6 月 $3/M,半年跌了一半多 半年前到处喊 GPU 短缺 现在全员降价抢客户 估值故事讲的是稀缺 现实是价格比成本跌得快 这中间的落差,就是泡沫

Track time, manage projects, and create invoices all in one app for freelancers.
u/AstronomerGreedy · Reddit
I got tired of juggling 4 different tools to run my freelance business, so I built one that does it all. I'm a freelancer, and for a couple of years my business ran on duct tape: one app for time tracking, another for invoicing, a separate e-sign tool for contracts, and a spreadsheet to check if I was actually making money that month. So over the past few months I built Workey (React + TypeScript + Supabase) — one dashboard for the whole "get paid" loop: - Time trackin