Free Chess Clock

A two-player game clock with increment.

Runs locallyNo uploadPrivate

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What is the Chess Clock?

A timed game needs a clock that fits both players and the format, and a physical chess clock is one more thing to own and carry. This online chess clock turns a single phone into a shared timer: two clocks, presets from bullet to rapid, and Fischer increment — with the top clock flipped so two people sitting across a board each read their own the right way up.

It runs entirely in your browser, ready whenever a game is.

Last updated: Aug 27, 2026

What does this tool do?

Pick a time control — say 3|2 or 10|5 — and each player gets a countdown. The first tap starts the opponent's clock; after each move you tap your own side to pass the turn and bank the increment. When a clock hits zero the flag falls. You can pause and resume, and reset to the same control for the next game.

It mirrors how a real chess clock works, without needing the hardware.

Key features

Two-player timer

Independent clocks for each side.

Fischer increment

Time added after each move.

Bullet to rapid

Presets from 1|0 to 30|0.

Shared-screen layout

Top clock flips 180° for the opponent.

Pause & reset

Halt and restart the game cleanly.

Example

Input

A blitz game at 3|2.

Processing

Each player starts on 3 minutes; a move banks 2 seconds.

Output

A fair blitz clock — first to run out loses on time.

Common use cases

Chess players — Time blitz, rapid or bullet games.
Clubs — A spare clock when the sets run out.
Board gamers — Time turns in any two-player game.
Debaters & quizzers — Give each side a timed bank.
Students — Practise playing to the clock.
Travellers — A clock without carrying one.

Benefits

One phone becomes a shared clock.
Increment supported, like a real clock.
The flipped layout suits face-to-face play.
Free and private.

Tips

Tap your own side the instant you've moved — that's what banks your increment and starts the opponent.
The top clock is upside-down on purpose; set the phone between you across the board.
Keep the tab active and the screen awake so the countdown keeps running smoothly.
Pick a control that fits your time: bullet for a quick blast, rapid for a proper game.
Use pause for interruptions, and reset to replay the same time control.

Common mistakes to avoid

Tapping the opponent's clock

Fix: Tap your own side after moving; that passes the turn and adds your increment.

Letting the screen sleep

Fix: Keep the tab active and the display awake so timing stays accurate.

Expecting increment before the first move

Fix: Increment is banked when you complete a move, not before the game starts.

Reading the flipped clock as your own

Fix: Your clock is the one the right way up from where you sit.

How it works

1
Pick a time control
Bullet, blitz or rapid with increment.
2
Tap to start
The first tap starts the opponent's clock.
3
Tap after each move
Pass the turn and bank the increment.

Frequently asked questions

Yes — presets like 3|2 and 10|5 add the increment (Fischer) to a player's clock each time they complete a move.

The top clock is rotated 180°, so players sitting across a board each see their own clock the right way up. Each taps their own side after moving.

Bullet, blitz and rapid presets from 1|0 up to 30|0, covering the common formats.

Yes — presets like 3|2 and 10|5 add the increment to a player's clock each time they complete a move.

The top clock is rotated 180°, so players across a board each see their own clock the right way up; each taps their own side after moving.

Bullet, blitz and rapid presets from 1|0 up to 30|0.

Yes — free, no sign-up.

Conclusion

Turn one phone into a proper chess clock: two sides, increment, and a flipped top clock so opponents across a board each read their own. Tap your side after every move, keep the screen awake, and it handles blitz, rapid and everything between.