CalcaTools
Free, fast, browser-based calculators and online tools
CalcaTools launched on May 25, 2026 with 2 votes, #6,288 of 20,538 launches that month.
What it does
Free, fast, browser-based calculators and online tools for finance, health, math, everyday life, Christmas, Islamic, and Hindu calculations
CalcaTools is your free, no-signup hub for 460+ browser-based calculators and tools — finance, health, math, everyday, Christmas, Islamic, Hindu, text, ima…
Hundreds of free, expertly built calculators and online tools for finance, health, math, everyday life, Christmas, Islamic, Hindu, text, images, PDFs, developers and more — all running in your browser with no tracking. Calculators on the left for every life decision; on the right, online tools for text, images, PDFs, developers and design. The most-used calculators on CalcaTools — useful, fast, and accurate. Estimate monthly mortgage payments with taxes and insurance. The most-used online tools on CalcaTools — text utilities, image work, PDFs, code helpers and generators. Real-time word, character and reading-time counter for any text. Build strong random passwords with length and symbol…from calcatools.com
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More life & fun this month
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Turn a phone, tablet or TV into a sign. Type a message and it fills the screen: welcome signs, timers, Wi-Fi passwords and more. No app, no account, free.
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Carrier settings from iPhone, Pixel and Galaxy firmware, decoded and compared: APNs, VoLTE, 5G and Wi-Fi Calling per carrier, and what each build changed.
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Source: Product Hunt launch ↗
Launched alongside, May 2026
the whole month →
Parallel agents, diff reviewer, and multi-model comparisons
Dev tools · May 2026 · kilo.ai
Hey HN, Henry here from Cactus. We open-sourced Needle, a 26M parameter function-calling (tool use) model. It runs at 6000 tok/s prefill and 1200 tok/s decode on consumer devices. We were always frustrated by the little effort made towards building agentic models that run on budget phones, so we conducted investigations that led to an observation: agentic experiences are built upon tool calling, and massive models are overkill for it. Tool calling is fundamentally retrieval-and-assembly (match query to tool name, extract argument values, emit JSON), not reasoning. Cross-attention…
Life & fun · May 2026 · github.com
🌱 Private, quiet space for thinking. Simple app for .md files. - zakirullin/files.md
Dev tools · May 2026 · github.com