Finance & Business1 week ago
Free Business Calculators 2026 | Profit Margin, Break-Even & Tax Tools | BizCalc
Use 32+ free calculators for business metrics like profit margin, break-even, and self-employment taxes.
@BizCalcLab · X
The full gallery
Tech stack
25 projects
Use 32+ free calculators for business metrics like profit margin, break-even, and self-employment taxes.
@BizCalcLab · X
Track tasks, habits, goals, and daily progress in one calendar-based app with no login required.
@sykatt01 · X
Let's connect. 🧗 Hike at:
Search for X accounts matching your target criteria, generate outreach DMs, and track replies.
@denpoint1 · X
Find people on X who match your audience, then run outreach like Trello — from signal to DM to reply on one board.
Access AI-powered study tools, live classes, and progress tracking for South African Grade 10 learners.
@sriharithebest · X
Building Kwez, an offline-capable study platform for South African high-school learners. Just shipped the Android APK, live classes, diagnostics, progress analytics and CAO support. Free Grade 10 alpha starts August 1.
Highlight dense passages to generate short visual explanations without leaving your browser.
@Berbir12 · X
Dense reading shouldn’t stop your momentum. Highlight the passage that isn’t clicking. Strang turns it into a short visual explanation, right inside your browser. One complete video is free.
Analyze any GitHub profile to get a score, badges, language breakdown, and a roast.
@w3ziqv · X
built GitScore — analyzes your GitHub activity and gives you a score from 0 to 1000+ based on commits, stars, impact, and global rank still early, would love brutal feedback
Daily coding challenges to keep developer skills sharp with AI assistance and streak tracking.
u/Administrative_Egg78 · Reddit
I built this because AI was making me a dumb&lazy engineer I noticed something sad about how I use AI. I was shipping faster, but practicing less. I could get answers quickly, but I was losing the habit of working through the fundamentals myself. So I built Unrot: short daily challenges for developers across languages, system design, architecture, data engineering, and other tracks. Game/xp and rewards system, a tiny bit competitive. No signup required to try it: https://unrot.dev
Tap keys in rhythm to master sprint physics and set records in this rhythmic challenge game.
stigo · V2EX
继续上站，今天顺便修了 2 个 bug，系统越用越顺手了 ## 不废话，直接上链接👇👇👇 - [Play Speed Stars Online for Free]( https://speed-stars.top/)  - [Drive Mad Unblocked]( https://speed-stars.top/)  ## 后面计划多做几个模板，告别千篇一律
Unify revenue from Stripe, Paddle, Polar, and Dodo Payments to track progress toward your MRR goals.
@Ranjith_Snifty · X
TargetMRR helps to reach your targeted MRR.
Analyze Python code across 14 quality dimensions to detect violations and measure capabilities.
@KSFirasa · X
Hello! I built a tool that profiles code (python only atm) across 14 dimensions detecting violations and capabilities outputting a full report. A bit more nuanced than "AI-powered insights". Free while in beta. Thank you!
Monitor LLM calls, APIs, and infrastructure performance for AI agents.
kirankgollu · HN
Oodle.ai – $10 per million agent traces
Analyze your skills against live job postings to find reachable careers with salary, skill gaps, and success odds.
u/ImmediateSafety2887 · Reddit
I scraped ~150k job postings to build a tool that shows which careers your skills can actually reach — not what an AI guesses. Free, no signup. One-person shop, building this as a second income around a day job, so feedback from this crowd is gold. What it is: every career tool hands you a confident AI recommendation. I wanted the opposite — something that reads live job postings, measures how much of a target role your current skills already cover, and shows the honest version: the salar