Skip to content

minor/us-east-1/Flaring unused Promise.race

syntax.energy

syntax.energy

A satirical utility that runs on developer mistakes, with an arcade, a lab bench and a toolbox bolted on. All of it free, all of it in your browser.

Grid output right now: 4,281.204 MW, condensed from other people's syntax errors.

Today's challenge: Bug Sweeper daily boardSame board for everyone until midnight UTC, 2026-11-07.
eu-central-1cannot find name 'foo'+5.1 kW/ap-southeast-2ENOENT: no such file+6.4 kW/ap-northeast-1CORS: No 'Access-Control-Allow-Origin'+7.7 kW/sa-east-1missing semicolon+9.0 kW/the voidhydration mismatch+1.6 kW/mainframe hallinvalid hook call+2.9 kW/ci-pipelinenull is not an object+4.2 kW/us-east-1unclosed string literal+5.5 kW/us-west-2module not found: 'left-pad'+6.8 kW/eu-west-2maximum call stack exceeded+8.1 kW/eu-central-1GOTO considered harmful+9.4 kW/ap-southeast-2segmentation fault (core dumped)+2.0 kW/ap-northeast-1cannot read property of undefined+3.3 kW/sa-east-1unused variable 'tmp'+4.6 kW/the voiderror: nothing to commit+5.9 kW/mainframe hallexpected ',', got '==='+7.2 kW/eu-central-1cannot find name 'foo'+5.1 kW/ap-southeast-2ENOENT: no such file+6.4 kW/ap-northeast-1CORS: No 'Access-Control-Allow-Origin'+7.7 kW/sa-east-1missing semicolon+9.0 kW/the voidhydration mismatch+1.6 kW/mainframe hallinvalid hook call+2.9 kW/ci-pipelinenull is not an object+4.2 kW/us-east-1unclosed string literal+5.5 kW/us-west-2module not found: 'left-pad'+6.8 kW/eu-west-2maximum call stack exceeded+8.1 kW/eu-central-1GOTO considered harmful+9.4 kW/ap-southeast-2segmentation fault (core dumped)+2.0 kW/ap-northeast-1cannot read property of undefined+3.3 kW/sa-east-1unused variable 'tmp'+4.6 kW/the voiderror: nothing to commit+5.9 kW/mainframe hallexpected ',', got '==='+7.2 kW/

Staff picks

Where to start if you have five minutes, or fifty.

Classic

Memory Leak

Snake with levels, firewalls, combos and four power-ups. Classic or wrap-around.

  • Arcade

    Firewall

    Breakout with seven wall designs, multi-ball, lasers and armoured bricks.

  • Puzzle

    Bug Sweeper

    Minesweeper with three sizes, chording, a daily board and best times.

  • Classic

    Block Stack

    Falling blocks with hold, ghost, next queue, combos and T-spins.

  • Arcade

    Packet Flap

    One button, endless gates. They tighten, speed up and start to move.

Games

Short, replayable games with local high scores. Keyboard, mouse and touch.

All games
  • Classic

    Memory Leak

    Snake with levels, firewalls, combos and four power-ups. Classic or wrap-around.

  • Arcade

    Firewall

    Breakout with seven wall designs, multi-ball, lasers and armoured bricks.

  • Puzzle

    Merge Conflict

    2048 with undo, score pops and a daily board that is the same for everyone.

  • Puzzle

    Bug Sweeper

    Minesweeper with three sizes, chording, a daily board and best times.

Simulators

Physics and engineering you can push around. Sliders, live graphs, stated assumptions.

All simulators
  • Energy systems

    Gridfall

    Run a national grid with real DC power flow. A coach shows you how.

  • Biology

    Flocking

    Boids: three local rules, and a murmuration emerges. Chase it with a hawk.

  • Physics

    Falling Sand

    Pour sand, water, oil, fire, lava and acid, and watch them react.

  • Biology

    Epidemic

    An outbreak in a town of dots, against the SIR model. Flatten the curve.

Tools

Fast calculators, converters and developer utilities. Everything runs in your browser.

All tools
  • Calculators

    Scientific Calculator

    Expressions with functions, constants, degrees or radians, and history.

  • Calculators

    Date Calculator

    Days between dates, working days, add or subtract time, and exact age.

  • Developer tools

    JWT Decoder

    Decode a JSON Web Token, read its claims and expiry, verify an HMAC signature.

  • Developer tools

    Cron Expression Explainer

    Cron in plain English, with the next run times.

Recently added

New this month, one from each corner of the site.

  • Classic

    Solitaire

    Klondike with drag and drop, draw 1 or 3, undo, hints and a daily deal.

  • Biology

    Flocking

    Boids: three local rules, and a murmuration emerges. Chase it with a hawk.

  • Calculators

    Date Calculator

    Days between dates, working days, add or subtract time, and exact age.

  • Corporate

    Grid Status

    Ninety days of uptime for components that do not exist, rounded generously.

Satire

Explain anything. Admit nothing.

SE-EXC-9282, official statement

As part of our ongoing journey, we encountered a brief period in which production and the deployment held different opinions following a release that reached production with greater confidence than verification. The effect, a number of users experiencing the previous version of the future, has been fully acknowledged at the appropriate level. We remain committed to excellence, subject to operational conditions.

Engineering translation

We deployed on a Friday afternoon because the ticket said ASAP.

Generate an excuseFile a syntax bill

From the newsroom

SYNTAX ENERGY CO.

STATEMENT OF HARVEST

SE-BILL-2103-33ED

Amount due

$29.14

Due 2026-05-04

Account
SE-55385802
Meter
MTR-TS-7
Language
TypeScript
kWh wasted
1.5
Period
2026-03-23 → 2026-04-22
Prev
28,029
Curr
28,065
Tokens
36
CodeDescriptionQtyAmount
TKNToken harvest36$2.88
LOCLine-of-code transmission11$1.32
ANY`any` penalty4$9.60
LOGDebug statement flaring1$0.86
TDUnfinished work surcharge1$1.80

Finance will have questions. Harvested notes: `any`, debug flaring, unfinished work.

75 experiences and counting. See the leaderboards. All free, no ads, nothing tracked. If it made you smile, help keep the grid powered.

From Syntax Labs

Products.

syntax.energy is the public site of Syntax Labs. The utility on this domain is satire. These products are separate, on their own domains.

Featured