Abstrackr vs Parsifal
Abstrackr
abstrackr.com
Parsifal
parsifal.com.brSide by side
| Figure | Abstrackr | Parsifal |
|---|---|---|
| Price from | Free | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Systematic Review Software | 8.0 (#9) | 7.9 (#15) |
| Exports | Users can export CSV or RIS files and download a full JSONL export for querying with DuckDB. | Users can export review data to Excel or CSV and papers to Word, LaTeX, or PDF. |
| Intended users | The site describes Abstrackr as serving researchers, librarians, and review teams conducting systematic reviews. | Parsifal is aimed at postgraduate researchers, professors, and research teams, with use cases including software engineering, health, and education. |
| Purpose | Abstrackr is a citation-screening tool for systematic reviews. | Parsifal is a web platform for planning, conducting, and reporting systematic literature reviews using the Kitchenham and Charters methodology. |
| Support | The site directs users to its community forum for methodology questions and workflow discussions. | The site provides a support link and a link for reporting problems. |
Plans
In their own words
Abstrackr
Abstrackr is a free web tool for screening citations in systematic reviews. It supports solo work, blinded team screening, pilot rounds, and conflict resolution. After about 100 labels, machine learning ranks remaining citations by predicted relevance. A live PRISMA flow table records screening thresholds, resolved conflicts, exclusion reasons by tag, and analysis of the model’s stop point. Citations can be imported from PubMed, Scopus, or Embase, or uploaded as RIS and CSV files. The service deduplicates records by DOI and PMID and can merge remaining near-duplicates. Results export as CSV or RIS, with a full JSONL download for DuckDB queries. Blinding starts enabled, and changes are logged with user, reason, timestamp, and project snapshots. Member and Leader roles have no stated team-size limit, while reminders arrive 7, 4, and 1 day before deadlines. No installation is needed, and the site directs methodology questions to its community forum.
Parsifal
Parsifal is a web tool for planning, conducting and reporting systematic literature reviews. Its planning process covers objectives, PICOC, research questions, keywords, search strings, selection criteria, quality questions and data extraction forms. Researchers can import BibTeX records from Scopus, Web of Science, IEEE, ACM and PubMed, or use API imports. The platform supports article screening against inclusion and exclusion criteria, duplicate detection, quality assessment and snowballing through references and citations. Review owners can invite co-authors to edit protocols, screen articles and generate content, or share a public read-only link. Parsifal can create PRISMA diagrams and export review data to Excel or CSV, with papers in Word, LaTeX or PDF. It lists more than 45 community templates across 12 domains and 6 languages, and connections to services including ASReview, OpenAlex and Semantic Scholar. Its optional AI assistant can help with screening, assessment, extraction and paper sections, but requires the user's Anthropic or OpenAI API key; AI usage is billed directly by the AI provider. Imported articles, screening decisions and extraction data are stored in the user's account database.