Finding the right reviewer starts with finding people who actually publish on your topic. This free tool searches OpenAlex, the open scholarly database, by keyword and shows authors with their works count, citation count, and top topics, so you can shortlist experts instead of guessing from memory.
What the tool does
Type a topic and the tool asks OpenAlex for its authors index. OpenAlex is free, open, and covers journals, preprints, and conference papers across fields. Each result shows the author’s name, how many works OpenAlex links to them, how often those works have been cited, and up to three of their strongest topics. That combination matters: a high works count with a matching topic is a better reviewer lead than a famous name in a neighbouring field.
How to use it
Write two to five keywords that describe the paper’s core method or question, for example “machine learning for climate modelling” rather than just “climate”. Press the button and scan the table. Open the most promising names in a new tab and check their recent papers before you invite anyone. Adding your email is optional; OpenAlex uses it to give your searches a fairer share of its rate limit, and it is never stored by this page.
Worked example
Search for “electrochemical carbon capture” and you might see an author with 42 works, 1,800 citations, and topics in electrochemistry and carbon capture, next to another with 90 works but topics in general catalysis. The first author is the stronger reviewer lead even though the second has more papers, because topic fit beats raw volume. Note both names, check their last two years of output, and prefer someone who has published on the exact method, not just the broad area.
Reading the results honestly
Citation counts favour older researchers and busier fields, so do not rank candidates by citations alone. A junior researcher with ten tightly relevant papers may review more carefully than a senior researcher with a hundred loosely related ones. Also check for conflicts before inviting: an author who co-authored with your paper’s authors, or who works at the same institution, should be screened with a conflict check first.
Honest limits
OpenAlex data depends on publishers and metadata quality, so some authors are split across two profiles and some recent papers are missing. The free shared rate limit can also run out at busy times; if you see the rate-limit message, wait a few minutes or add your email and retry. This tool finds candidates only. It cannot judge review quality, availability, or willingness, and it never contacts anyone on your behalf.
Practical tips for finding reviewers
Search with the paper’s method, not its broad field, because method keywords return people who can judge the work rather than people who merely recognise the topic. Try two searches: one with the core method and one with the application area, then compare the shortlists. Check the last two years of each candidate’s output, since a researcher who changed fields five years ago may no longer be current. Prefer candidates with recent first- or last-author papers on the exact method, and avoid inviting two reviewers from the same research group for the same paper. If OpenAlex returns few names, broaden one keyword at a time instead of starting over, and note which search produced each candidate so you can explain your shortlist to an editor if asked. Keep the shortlist short, ideally five names for two slots, because a long list signals that you have not actually judged fit, and editors prefer a focused recommendation with one line of reasoning per name.
Related tools
Spanish version: Buscador de Expertos por Palabras Clave Gratis y Online: OpenAlex · All free online tools.
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