usefulweb.site Error Message Translator

Internet, AI & productivity

Error Message Translator

Paste a technical error and get the plain-English cause and troubleshooting steps.

Try an example: Database refused connection · Python missing module · Browser 502

How it works

Matches your error message against a database of over 120 known errors (HTTP status codes, TLS/certificate, DNS, network, filesystem, Node.js, Python, Java, npm, pip, git, Docker, SQL and Windows codes), explains the cause in plain English and fills the concrete file, host, port or package from your message into the steps.

  • Every pattern is a regular expression with a specificity score from 1 (generic, e.g. "permission denied") to 10 (one exact error code).
  • All matching patterns are ranked by specificity, then by how early in the message they match; the top one is explained, the rest are listed.
  • If you pick a context, patterns from matching categories get +2 specificity when ranking.
  • Concrete values (URL, host, port, path, module, package, status/error code) are extracted from the message and inserted into the steps.
  • No match → generic triage steps; nothing is guessed.

For scripts and AI agents

  • JSON API: POST https://errormessagetranslator.usefulweb.site/api/v1/calculate (same calculation as this page)
  • Interface description: OpenAPI 3.1 · AI guide: llms.txt
  • MCP server (Streamable HTTP): https://errormessagetranslator.usefulweb.site/mcp · tool name error_message_translator
Example request
curl -s -X POST https://errormessagetranslator.usefulweb.site/api/v1/calculate \
  -H 'content-type: application/json' \
  -d '{"message":"Error: connect ECONNREFUSED 127.0.0.1:5432\n    at TCPConnectWrap.afterConnect [as oncomplete] (node:net:1555:16)","context":"code"}'

Related tools

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  • File Format Doctor – Find out what a file really is from its bytes, why it will not open and how to convert it.
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