Evidence · one of the 17 tools
Synthesis Lab
Synthesis with receipts
Synthesis Lab builds evidence matrices where every cell is a verified extraction with a source span, then clusters themes, runs PRISMA-grade screening, and keeps your review alive as new papers arrive.
What Synthesis Lab does
Evidence matrices, verified
One row per paper, one column per question: every filled cell is extracted from full text, carries its source span, and is fact-checked before you see it.
Critical appraisal built in
ROB2, GRADE, or CASP presets score each study with quoted justifications, and claims supported only by low-quality evidence are flagged separately.
PRISMA-grade reviews
Inclusion criteria, per-paper screening decisions, and the flow diagram: the systematic-review workflow examiners expect.
Theme synthesis you can defend
Themes, gaps, and a drafted narrative whose every claim links back to matrix cells, with live verification verdicts, never invented support.
A living review
New papers matching your saved searches queue for screening: accept to extract into the matrix, dismiss to record the decision.
Grounded by design
Synthesis claims are built only from verified matrix cells. The narrative can't say what the evidence table doesn't hold.