CalcSystems
Free personal finance calculators
CalcSystems launched on April 12, 2026.
What it does
Free, accurate financial calculators for salary, taxes, mortgage, loans, and investing. Fast results, no sign-up required.
Free financial calculators for paycheck, income tax, CD, APY, mortgage, loans, and retirement. Transparent formulas, source links, and no sign-up required.
Fast, accurate tools for salary, taxes, loans, savings, and everyday money decisions. Methodology, sources, and review dates on every financial calculator. Maturity, total interest, and early-withdrawal penalty estimate. Take-home pay for all 50 states with current 2025 and 2026 federal tax tables. Federal + state, updated for the One Big Beautiful Bill Act. Calculate take-home pay, convert between hourly and annual salary, and estimate overtime — using current federal, state, and FICA rates. Every calculator supports all 50 states. Estimate take-home pay after federal, state, FICA, and pre-tax deductions. Convert an hourly rate to annual, monthly, weekly, and biweekly pay. Reverse the…from calcsystems.com
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Source: Product Hunt launch ↗
Launched alongside, April 2026
the whole month →
- AG
Thought the resources for GPU arch were lacking, so here we are
Life & fun · Apr 2026 · jaso1024.com
Built a ~9M param LLM from scratch to understand how they actually work. Vanilla transformer, 60K synthetic conversations, ~130 lines of PyTorch. Trains in 5 min on a free Colab T4. The fish thinks the meaning of life is food. Fork it and swap the personality for your own character.
AI · Apr 2026 · github.com
I made a laptop stand out of solid concrete, in the style of brutalist architecture, with themes of urbex and urban decay
Life & fun · Apr 2026 · sam-burns.com
With social media and now AI, its important to keep the indie web alive. There are many people who write frequently. Blogosphere tries to highlight them by fetching the recent posts from personal blogs across many categories. There are two versions: Minimal (HN-inspired, fast, static): https://text.blogosphere.app/ Non-minimal: https://blogosphere.app/ If you don't find your blog (or your favorite ones), please add them. I will review and approve it.
AI · Apr 2026 · text.blogosphere.app