IA, EE, TOK, oral and coursework sources

IB Source Checker for every assessment source rule that trips students up

Paste a source, classify it, and check it against subject-specific IB expectations. Marksy looks at source type, provenance, date, source-pack balance, primary data, media attribution, and component-specific risks.

Check a sourceOpen dashboard workspace

What makes this different

Not a generic citation checker: 31 subject/component profiles change the questions, source types, and pack rules.

Checks source packs, not just single links, so it catches repeated publishers, missing primary data, and wrong source counts.

Built for student search intent: Business IA documents, Economics IA articles, History IA OPVL sources, TOK objects, media assets, and more.

Gives source-discovery searches and replacement moves when a source is weak, so students know what to look for next.

AI source auditor

Pick a checker, then add sources

Marksy reads the links or source notes you provide, applies the selected IB assessment profile, and only stops for clarification when the score depends on it.

1Profile
2Sources
3Clarify
4Score

Individuals and Societies

Sciences

Languages

Arts

Mathematics

Core

Choose the exact source rule you are searching for