What HTTP error codes does this tool explain?

The tool covers all standard HTTP status codes from the 1xx informational range through 5xx server errors, including less-common codes like 418, 429, and 451. Each entry explains what the code means, common causes, and how to fix it.

Does this cover only HTTP errors or other error types too?

Beyond HTTP, the tool covers common database errors (SQL, Postgres, MySQL), JavaScript runtime errors, API error formats (OAuth, REST, GraphQL), and operating system exit codes. Search any error code or message to find an explanation.

How is this different from just Googling the error?

The tool gives you context-aware explanations — not just a definition, but likely causes ranked by frequency, copy-pasteable diagnostic commands, and links to relevant documentation. It's faster than reading through Stack Overflow threads.

Can developers use this to look up API-specific errors?

Yes. There are dedicated sections for popular APIs including Stripe, Twilio, AWS, Firebase, and GitHub. If you're getting a 402 from Stripe or a ThrottlingException from AWS, you get the specific meaning in that platform's context.

Is there a way to look up errors by the error message text?

Yes. Full-text search lets you paste an error message and find matching explanations even if you don't know the code. The search handles partial matches and common variations in error message phrasing.

$ error --lookup

错误代码
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45+ error codes across 6 platforms. Step-by-step solutions for every error.

45 results

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错误代码查询

Access Denied

Windows Update Component Missing

SYSTEM_THREAD_EXCEPTION_NOT_HANDLED

Unspecified Error

STATUS_SYSTEM_PROCESS_TERMINATED

Windows Update Installation Failure

The Parameter Is Incorrect

Kernel Data Inpage Error

Windows Update Download Failure

Boot Configuration Data Missing

File Not Found

I/O Error (Finder)

Parameter Error

Kernel Panic

Operation Can't Be Completed

Restore/Update Failed

USB/Firmware Disconnect

Communication Lost During Update

iTunes Could Not Update

Security Check Failed

Play Store Error

Play Store Download Pending

Download/Update Error

App Download Failed

Device Stuck in Boot Loop

Bad Request

Unauthorized

Forbidden

Not Found

Method Not Allowed

Too Many Requests

Internal Server Error

Bad Gateway

Service Unavailable

Gateway Timeout

Random/Multiple Cylinder Misfire Detected

System Too Lean (Bank 1)

Catalyst System Efficiency Below Threshold

Coolant Thermostat Below Regulating Temperature

EVAP System Small Leak Detected

EVAP System Large Leak Detected

EGR Flow Insufficient

Catalyst System Efficiency Below Threshold (Bank 2)

EVAP System Malfunction

EVAP System Very Small Leak Detected

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