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Rubric Generator

Define criteria and performance-level descriptors — print a clear analytic rubric for assignments and projects.

100% freeNo sign-up requiredRuns in your browserJSON API for agents

Total max points: 30

Grid
Criteria × levels
Σ
Total points
A4
Printable rubric

How the rubric generator works

Criteria and levels

Add criteria with max points. Provide descriptors for each performance level. The printed grid is ready for student feedback or board display.

Source

Analytic rubric grid (criteria × performance levels). Levels default to Exemplary / Proficient / Developing / Beginning — edit labels to match your school.

Frequently asked questions

Analytic vs holistic rubric?

This builds analytic rubrics (separate scores per criterion). Holistic rubrics use one overall descriptor scale.

How many levels should I use?

Four levels are common in schools; three works for younger grades. Keep descriptors observable and distinct.

Can I score with this sheet?

Yes — print and tick levels, or sum points per criterion up to each criterion’s maximum.

Does it export to Excel?

Use the JSON API output, or copy from the print preview into a spreadsheet.

For developers & AI agents

The Rubric Generator is also available as a free, unauthenticated JSON API — no API key, no sign-up, CORS enabled for all origins. Send a GET request with the parameters below and receive the computed result as JSON, including the source of the format or formula used. Invalid input returns HTTP 400 with a JSON { "error": "..." } body.

Endpoint
GET https://knwdle.com/api/tools/rubric-generator
Query parameters
ParameterRequiredDescription
titleYesRubric title
levelsNoComma-separated level names (default 4 levels)
criteriaYesSemicolon-separated Name|MaxPoints|Desc1|Desc2|Desc3|Desc4 (desc count must match levels)
Example

Request:

GET https://knwdle.com/api/tools/rubric-generator?title=Science+Project+Rubric&levels=Exemplary,Proficient,Developing,Beginning&criteria=Research|10|Thorough+sources|Adequate+sources|Limited+sources|Minimal+sources;Presentation|10|Clear+and+engaging|Mostly+clear|Uneven|Unclear

Response:

{
  "tool": "rubric-generator",
  "name": "Rubric Generator",
  "source": "Analytic rubric grid (criteria × performance levels). Levels default to Exemplary / Proficient / Developing / Beginning — edit labels to match your school.",
  "title": "Science Project Rubric",
  "levels": [
    "Exemplary",
    "Proficient",
    "Developing",
    "Beginning"
  ],
  "criteria": [
    {
      "name": "Research",
      "maxPoints": 10,
      "descriptors": [
        "Thorough sources",
        "Adequate sources",
        "Limited sources",
        "Minimal sources"
      ]
    },
    {
      "name": "Presentation",
      "maxPoints": 10,
      "descriptors": [
        "Clear and engaging",
        "Mostly clear",
        "Uneven",
        "Unclear"
      ]
    }
  ],
  "totalMax": 20
}

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