DataCite
DOIs for data — the identifier registry that makes datasets citable.
Tier 3 ToolsFree
Research Database Directory
Every research database, reviewed.
Deduklick
Near-perfect deduplication, as a commercial service.
Tier 3 ToolsSubscription
DistillerSR
Enterprise-grade systematic review automation — for audit-heavy evidence work.
Tier 3 ToolsSubscription
Altmetric
Attention data beyond citations.
Tier 3 ToolsFreemium
ASReview
Open-source active learning that reorders your screening pile as you work.
Tier 2 ToolsFree
ASySD
Free, high-accuracy deduplication for systematic reviews.
Tier 3 ToolsFree
Bibliometrix
Bibliometric analysis in R — reproducible science mapping, code-first.
Tier 3 ToolsFree
Bohrium
AI-for-science literature search with an unusually generous free tier.
Tier 3 ToolsFreemium
Citavi
Reference management plus knowledge organization.
Tier 3 ToolsFreemium
CiteSpace
Detect the turning points in a field — citation analysis with a temporal lens.
Tier 3 ToolsFree