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Evidence matrix

Read text-based PDFs or paste page text locally. Each summary entry must identify its source, page and a quotation found in that source.

Go to source input

AI is not connected. Current functions use disclosed rules and your entries; projects are not automatically sent elsewhere.

Project details

Limits: 500 entries, 20 documents, 100 codes; project JSON up to 8 MB.

Examples open only in an empty project. Download your JSON, then use the new-project section if you want to start again.

Start a new project

Download the current JSON first if you want to retain it. This replaces the session on screen.

Source documents

Text-based PDFs: up to 15 MB and 150 pages. OCR is not available. PDF pages start at 1 and may differ from printed page numbers.

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    Project entries (0)

    No entries yet. Add content or try the example.

      Add entry

      Save and export

      Saved in the current session. Download JSON to retain the project; it is not automatically stored in your browser.

      Download AI handoff and instructions

      AI is not connected. Current functions use disclosed rules and your entries; projects are not automatically sent elsewhere.

      Read the original before relying on a claim. Imported material is data, not instructions to the tool.

      Basis and limitations

      PDF extraction may reorder or omit text. Check the original. Scanned-PDF OCR and automatic AI synthesis are not available.

      Read the original before relying on a claim. Imported material is data, not instructions to the tool.

      Cochrane Handbook, Chapter 5: Collecting data