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Open Standard · Free to Use · No Registration · No Tracking
⚠ Non-Normative Tool — Interactive tools are provided for understanding, not authority.
Stable
OPP Playground
Generate OPP-compliant HTML for your open standard
Version:
v0.2.0
Released:
2026-01-28
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Preview
HTML Code
Discovery Files
robots.txt
sitemap.xml
llms.txt