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Công cụ tung đồng xu

Coin flip: simulate fair coin toss, multiple flips and stats with custom heads/tails labels and history for draws and probability demos.

Cách sử dụng

Đặt số lần tung, nhấn "Tính toán" để tạo kết quả ngẫu nhiên và thống kê số lần mặt ngửa; H=mặt ngửa, T=mặt sấp.

Overview

Coin Flip is a Generator tool. Simulate fair coin toss, multiple flips and stats with custom heads/tails labels and history for draws and probability demos. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

  • Daily use of Coin Flip: Set the number of flips and roll. Counts of H (heads) and T (tails) are shown. — enter and get instant results without manual lookup.
  • One-click copy keeps results ready to save, check or share with family and pros.
  • Use Coin Flip offline or on poor network — all calculations stay local and private.
  • Generate strong passwords
  • Create UUIDs and short strings

How to use

  1. 1 Set the number of flips and roll. Counts of H (heads) and T (tails) are shown..
  2. 2 Set length/charset rules
  3. 3 Preview and lock/exclude items
  4. 4 Copy or export CSV/TXT

Highlights

  • Local & private: processing stays in your browser
  • Live validation with tolerant parsing
  • One-click copy and export for docs, code or sheets
  • Batch and offline support under poor network

Notes

  • Uses Crypto API
  • Mock data for testing only
  • Batch export in chunks for thousands

FAQ

Reproducible?
Fix seed or export log if needed.
How random?
crypto.getRandomValues with system entropy.
How is Coin Flip different?
It runs locally with a focus on speed and privacy, plus tolerant parsing for “coin flip” and one-click copy for reuse.
Can I use results in official reports?
Use it as a working draft and cross-check with authoritative sources; keep the exported log and parameters for traceability.
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All calculations run locally in your browser; nothing is uploaded.