Create
"Make something useful for me."
Generate a real, downloadable asset — grids, guides, exports — built right in your browser.
A clearer way to create
Create tools produce practical visual guides from your image or dimensions. The source stays in the browser while you adjust the result and, where supported, export a usable asset.
How to use these tools
Choose or upload the source, match the settings to the destination, and inspect the preview before exporting. Recheck dimensions, color, crop, and compatibility in the final art or print workflow.
API Error Contract Builder
Create consistent API errors with RFC 9457 JSON, safe messages and client recovery guidance.
MCP Tool Contract Builder
Create bounded MCP input/output schemas with separate approval, scope, retry and failure guidance.
Cloud Cost Guardrail Builder
Build owner-led spending guardrails with your budget thresholds, environment constraints and cost-category review rules.
UI Edge-State Matrix Builder
Draft editable UI state coverage with triggers, recovery behavior, QA checks and local JSON/CSV export.
LLM Eval Case Builder
Design and edit local evaluation case templates with explicit expectations, review notes and JSON export.
API Chaos Payload Builder
Generate bounded JSON edge-case packs with typed mutations, nested paths and local copy/export.
Crop Guardian
Crop one image to multiple target aspect ratios at once and export every crop, right in your browser.
Drawing Grid Maker
Generate and download a proportion grid overlay for any canvas size — for tracing, scaling, or practice.
Bleed & Safe Area Builder
Generate a downloadable bleed and safe-area guide for any print size.
Value Study Maker
Turn a reference photo into a simplified tonal value study to practice shading and composition from.
Perspective Grid Maker
Generate and download a customizable 1, 2, or 3-point perspective grid for drawing practice.
More Khizooology monsters →
