How does the coin flip work?

Tap the coin to flip it. The result (Heads or Tails) is determined randomly using JavaScript Math.random(). Each flip is independent and has a 50/50 probability.

Is the coin flip truly random?

Yes. We use JavaScript Math.random() which provides cryptographically sufficient pseudo-randomness for fair coin flipping. Over millions of flips, the result distribution converges to 50% Heads / 50% Tails.

Can I flip the coin multiple times at once?

Yes. You can choose to flip the coin from 1 to 10,000 times in a single action. The results are tallied and displayed instantly.

Is Flip a Coin.com free to use?

Yes, completely free. No registration required. Supported by ads, with optional ad-free experience for users who prefer it.

How many flips have been performed?

Over 338.9M+ flips have been performed by users worldwide. The site tracks daily heads/tails statistics.

Flip a coin 90,000 times with Alabama 50 State Quarter at snow

A free, fair coin flip — instantly online

Flip a Coin.com is a free, browser-based coin-tossing tool used worldwide for decisions, games, and probability experiments. Every flip is generated by a cryptographically secure random number generator and tallied to public statistics.

338,854,418 flips since 2024 · 50.00% heads / 50.00% tails — verified fair distribution

Want to flip more?

Choose 1 to 100,000 flips. Type a number and tap GO, or pick a preset below.👍

Specify flips

Fiat Coins

You can choose from legal tender coins. Press 'View more coins' to select from all available coins.🪙

United States Dollar
50 State Quarters
British Pound Sterling
Euro (Spain)
Euro (Austria)
Australian Dollar
Japanese Yen
Indian Rupee

Decision-Making Coins(Flip a Coin.com Original Coins)

When you're torn between two choices, let a coin decide for you! The coins are arranged by most-flipped order. If you have an idea for a new decision coin, please let us know via our Contact!

Crypto Coins

These coins represent popular cryptocurrencies. Each has a unique design exclusive to our site for a distinctive flipping experience.

Background Images or Videos

Choose a background image or video for your coin toss. Match it to your mood for the day!

How to play Flip a Coin.com

Just tap the coin to start flipping! Below, you'll find detailed instructions for all the flip area functions.🙂

Top right corner in the flipping area

Default value	Description
Flip a coin	You can select how many times the coin will be flipped in one go.
Heads or Tails	Select a Coin You can select the coin you wish to flip. There are three categories: Fiat Coins, Decision-Making Coins, and Crypto Coins.
Dayflow	Select Background You can personalize the background image to match your mood! Select from a range of images to change the scenery.

Default value

Description

Flip a coin

You can select how many times the coin will be flipped in one go.

Heads or Tails

Select a Coin

You can select the coin you wish to flip. There are three categories: Fiat Coins, Decision-Making Coins, and Crypto Coins.

Dayflow

Select Background

You can personalize the background image to match your mood! Select from a range of images to change the scenery.

Bottom right corner in the flipping area

Default value	Description
	Flip Sound ON/OFF You can turn the flipping sound on or off.
	Select Background Music You can select the background music. Please be mindful of your device's volume settings!
	Full Screen ON/OFF Use this button to toggle full-screen mode on and off for an immersive experience.

Default value

Description

Flip Sound ON/OFF

You can turn the flipping sound on or off.

Select Background Music

You can select the background music. Please be mindful of your device's volume settings!

Full Screen ON/OFF

Use this button to toggle full-screen mode on and off for an immersive experience.

Bottom left corner in the flipping area

Flip History

You can review the history of your flips here. The last 20 flips are stored in your browser's cookies.

Embed the Coin Flip Widget

Drop a working coin flip into your own blog, course page, or article with one line of HTML. No JavaScript, no accounts — just paste an <iframe> and it works.

What's New

See All Updates

May 29, 2026

Multi-flip results on the site can now be independently verified — just like API flips.

Verify your multi-flip results

When you flip a coin many times on the site (any /flip-a-coin-N-times/ run), a new “Verify this flip” link appears next to “Details of the result.” It opens a permanent page showing the coin, the heads/tails counts, the timestamp, and the complete flip sequence — recorded for 30 days so anyone can confirm the outcome.

Each multi-flip is generated server-side with a cryptographically secure random source (random_bytes()), so the verification page is genuine third-party proof, not a self-reported result.

Try it: flip on flip-a-coin.com/flip-a-coin-10000-times/ and look for the “Verify this flip” link under the result.

Single flips remain instant and private (generated in your browser), so they don’t produce a verify link — the feature is for multi-flip runs.
May 27, 2026
flip-a-coin.com gained four new ways to flip a coin from outside the website. If you use ChatGPT, Claude, or build with any AI / HTTP-capable tool, please try them out.

1. The public API is live — use it from anything

A free, unauthenticated JSON API can flip up to 100,000 fair coins per call. Just GET https://flip-a-coin.com/api/flip. Pass heads/tails for custom labels, n for multi-flip, format=binary for compact output. Every flip is generated with a server-side CSPRNG. No API key, CORS enabled, 60 req/min and 5,000/day per IP. Full reference: /api/.

2. Use our Custom GPT in ChatGPT — zero setup

We published Coin Flip — Verified Fair on the ChatGPT GPT Store. Click the link, then just chat: “Flip a coin to decide between pizza and burger.” No setup, no schema, no install — ChatGPT calls our API for you and cites the verify URL. Works on any paid ChatGPT plan (Go, Plus, Pro, Business, Enterprise). Sign-in is required for the GPT’s Action to actually run.

3. Use the MCP server with Claude Desktop, Claude Code & Gemini CLI

We published an official Model Context Protocol server: flip-a-coin-mcp on npm. One command in Claude Code or a small JSON block in Claude Desktop and Claude can flip coins natively. The same package also works with Gemini CLI — Google’s terminal AI tool that speaks MCP (consumer Gemini chat and Gems don’t support third-party MCP yet, but the CLI does). Three tools: flip_coin, flip_coin_many (1–100,000), and verify_flip. Setup details for all three on /ai-integration/.

4. Every API flip gets a verifiable URL

Every call — whether from the GPT, the MCP server, or a direct HTTP request — receives a 16-character flip ID and a citable verify_url that anyone can visit for 30 days. The verify page shows the coin, the count, the timestamp, and the full sequence (up to 10,000 tokens inline for multi-flip runs).

Live sample — a fresh 100-flip Yes/No run we just made for this post: https://flip-a-coin.com/flip/4a004d5a6d0849c3

Documentation
- flip-a-coin.com/ai-integration/ — how to use the GPT, MCP, and copy-paste prompts in any AI assistant.
- flip-a-coin.com/api/ — full developer reference, parameter table, OpenAPI 3.1 schema, and code examples.
May 25, 2026
You can now embed the coin flip on your own site — no JavaScript, no accounts. Just paste a single <iframe> tag into any blog post, lesson page, or article.

The new Embed the Coin Flip Widget generator lets you:
- Pick from our widget catalog — United States coins (Penny through Presidential Dollar and the 50 State Quarters), Flip a Coin.com’s own Decision Making Coins (Heads/Tails, Yes/No, Go/Stay, and others), and selected cryptocurrencies (Bitcoin, Cardano).
- Customize the Heads and Tails labels (e.g., “Pizza” / “Burger”).
- Match your site with auto/light/dark theme, palette or custom #hex background, and adjustable text size.
- Set the iframe width and height to fit your layout.
Every flip is cryptographically fair (crypto.getRandomValues()) and counts separately on our Statistics page. No tracking cookies are set inside the iframe. Works on all modern browsers, including mobile.

Try it now: head over to flip-a-coin.com/widget/, configure your widget, copy the code, and paste it anywhere.

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