Caption Checker runs on your own machine — the client starts it, so there is no endpoint to ping. Last commit 1 Nov 2026.
Check, fix, convert and retime SRT and WebVTT captions against Netflix, BBC and DCMP limits.
What the code does
We read the source, 1 d ago · rules 995398eba69f
What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.
open(os.path.join(D, fn), 'wb').write(body)
Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.
This code can reach further than it looks
We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.
Alternatives to Caption Checker
same job, measured the same wayParse WebVTT, SRT, or TTML for conformance, timing, overlaps, line length, and reading speed.
Fact-check claims against live web sources: verdict, consensus, cited sources, PII redaction.
Live subscription limits, resets and budget checks for coding agents over MCP.
Build an ATS-friendly resume and check it against a job description, fully offline.
The top conversion fix from real visitor sessions, with file and line, checked after you ship.
Convert, clean, retime and validate SRT, WebVTT, ASS/SSA, SBV and TTML subtitles. 8 tools.
Supplement labels, doses against official upper limits, and a whole-stack check for overlaps.
Check claims against current public CMBS filings and NPORT-P coupons, with citations.
Caption Checker — questions
Answers built from our own checks of this server.