How to check, generate and mark lottery combinations

Lottery-Checker checks Lotto, EuroMillions, Set For Life, Thunderball and Powerball lines saved on this browser against the latest published draw. You can also type up to seven lines into the result window for a one-off comparison that is not saved. The site also provides a shared combination planner for the next draw.

Last reviewed: July 2026

Quick start: use Lottery-Checker in six steps

Choose the correct lottery game

Use the game selector at the top of the app. Each game has a separate shared board and different number rules. A line marked in one game does not affect another game.

Three ways to find a planned combination

The optional Use true random switch requests numbers from random.org. If that service is unavailable or its limit is reached, the app can use secure system-generated randomness instead.

What Marked on this board and Hide marked lines mean

When someone taps Mark this line, the exact full combination is marked on Lottery-Checker's shared board for everyone viewing that game. Live updates normally make the status appear on other open devices almost immediately.

Marked on this board does not mean every official ticket in the UK. It only means someone has marked that line inside Lottery-Checker. The site is not connected to official ticket sales.

Turn on Hide marked lines to skip combinations currently marked by other users. This is useful when browsing the Combination browser and you only want to see lines not marked on the shared board.

Recommended planning order

1. Choose your game and find the line you want.
2. Confirm that the full combination is not already marked on this board.
3. If you decide to play, buy the real ticket through an official authorised channel.
4. Return to Lottery-Checker and tap Mark this line on that exact line.
5. Keep your own ticket and purchase records separately.

What My marked lines means

My marked lines shows the lines associated with your browser for the selected game. It is useful as a personal planning list, but it is not an official ticket record.

The personal list may not follow you to another browser or device. Clearing cookies or site data can also reset it. The shared Marked on this board status is different: that status is stored on the server and is visible to everyone during the current draw cycle.

When archived lines from the previous completed draw are available, My marked lines shows a last-draw section. It contains the saved lines from that completed draw so you can decide which ones to mark again.

Reuse lines from the last draw

After a scheduled board reset and result publication, Lottery-Checker can show lines that were saved on this browser for the completed draw. They appear inside My marked lines in the last-draw section, with up to 20 lines per page.

1. Open My marked lines for the selected game.
2. Scroll to the last-draw section when it is available.
3. Review the archived lines from the completed draw.
4. Tap Mark this line on any line you want to mark again for the current draw board.
5. Buy or enter any real ticket separately through an official authorised channel.

Last draw, possible prizes and no-match messages

At the scheduled board reset, lines in My marked lines are archived for the completed draw before the active shared board is cleared. After the winning numbers and prize information are manually checked and published, the Check result button compares those archived lines with the result.

If a published result has archived lines for this browser and you have not viewed it yet, the result comparison may appear automatically when you open Lottery-Checker. Once you close or view it, that result is marked as seen for this browser.

How the result is prepared

1. The administrator enters the winning numbers and available prize information from the official draw publication.
2. The result is manually checked before it is made visible on Lottery-Checker.
3. The site compares that result with lines archived from the same browser for the completed draw.
4. Published results remain available in the permanent game archive after newer results are added.

• If a saved line reaches a listed prize category, the app shows the matching category and a possible prize.
• If no saved line reaches a prize category, the app shows No prize match found and your closest match.
• If no line was saved on this browser for that draw, the app shows the result but explains that there is nothing to compare.
• After a completed draw is archived, selected last-draw lines can be reused for planning the next/current draw from My marked lines.
• For the current UK Lotto format, each saved line is compared with both published result rounds and each round's separate Bonus Ball.

Official draw history: EuroMillions, Set For Life, UK Lotto and Thunderball.

Check your own lines without saving them

The Check your own lines area inside the result window lets you type 1-7 lines and compare them with the published draw currently on screen. This is useful if you want a quick comparison without marking anything on the shared board.

• Typed lines are compared in the browser for the current result window only.
• They are not added to My marked lines and are not marked on the shared board.
• They do not buy a ticket, validate a ticket, reserve numbers, submit an entry or confirm that a prize is payable.
• Any possible prize shown from typed lines must still be checked with the original ticket and the official operator.

How to use official Lucky Dip lines

1. Generate or buy the Lucky Dip through the official authorised channel.
2. Use Check your combination to locate the exact main and bonus numbers on Lottery-Checker.
3. After purchase, tap Mark this line on each matching line.

Lottery-Checker's own random generator is a planning feature. It does not create or purchase an official Lucky Dip ticket.

Live updates and scheduled resets

New marks are shared between open devices in near real time. If you return to the app after leaving it in the background, the shared state refreshes again when the page becomes active.

The app shows the next scheduled board reset for the selected game. Lotto, EuroMillions, Set For Life and Thunderball reset around their normal draw cycles. For Powerball, Next sales cutoff (UK) is 11:55pm on Monday, Wednesday and Saturday; the shared board resets when UK entries close, and the draw takes place early the next morning. Marked lines are archived for the completed cycle and then cleared from the active board so planning can start again. Published draw results remain available in the permanent result archive.

Using Lottery-Checker for an existing syndicate

Existing groups can use the shared board to compare proposed lines and reduce accidental duplication. The group should still keep its own agreement, member records, payments, official tickets and prize-sharing arrangements.

Lottery-Checker does not create syndicates, collect funds, hold tickets, submit entries, claim prizes or distribute winnings. See the lottery syndicate number-planning guide.

Frequently asked questions

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