Index

All tools

Every tool in the DataTools research toolkit. Free, no signup, no stored data — each one runs as a stateless server function.

§ 01
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URL Checker

Verify every link in a reference list

Paste or upload up to 500 URLs, DOIs, or arXiv IDs. Each one is fetched server-side and classified by HTTP status, with Wayback fallback links for anything broken.

  • ›DOI, arXiv, PubMed detection
  • ›HEAD → GET, follows redirects
  • ›Wayback archive links on failure
Open tool
§ 02
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Citation Extractor

Pull URLs from BibTeX or RIS

Drop a .bib or .ris file and extract every URL field into a clean, deduplicated list ready to feed into the URL Checker.

  • ›BibTeX & RIS parsing
  • ›DOI normalization
  • ›Deduplication
Open tool
§ 03
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DOI Resolver Audit

Catch DOIs that resolve to a 404

DOIs can resolve successfully but land on a missing publisher page. We follow the full chain and flag the silent failures.

  • ›Full doi.org chain
  • ›Publisher 404 detection
  • ›Crossref metadata
Open tool
§ 04
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Wayback Snapshot Finder

Best archive.org snapshot per URL

For any URL, find the closest Wayback Machine snapshot to a target date — useful for replacing rotted links in manuscripts.

  • ›Closest-to-date lookup
  • ›Bulk batch mode
  • ›Citation-ready URLs
Open tool
§ 05
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Reference List Diff

Compare two reference lists

Diff two bibliographies and see what was added, removed, or changed between manuscript versions or review rounds.

  • ›DOI-aware matching
  • ›Side-by-side view
  • ›Export as table
Open tool
§ 06
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Source Repository Mapper

Map sources to archives & repos

Group source URLs by hosting platform (GitHub, OSF, Zenodo, Dataverse, journal) so you can audit reproducibility coverage at a glance.

  • ›Platform classification
  • ›Reproducibility score
  • ›CSV export
Open tool