OpenMeta[Analyst], developed by the Brown University Evidence-based Practice Center (Tufts Medical Center and Brown University), is a free, open-source meta-analysis tool with a graphical interface. It was designed to provide CMA-like functionality without the license cost.
Pricing: Free and open-source. Available for Windows, macOS, and Linux.
Analytical capabilities include fixed-effect and random-effects meta-analysis for binary outcomes (odds ratios, risk ratios, risk differences), continuous outcomes (mean differences, standardized mean differences), and diagnostic test accuracy studies. The software generates forest plots and funnel plots, performs subgroup analysis, and includes basic meta-regression. Under the hood, OpenMeta[Analyst] calls R's metafor package for computations, so the statistical methods are sound.
Learning curve: Low to moderate. The graphical interface simplifies data entry and analysis, but the software has quirks in data handling and output formatting that require patience. Documentation is less polished than CMA's, and the user community is smaller.
Best for: Students and researchers who need a free GUI-based meta-analysis tool and cannot afford CMA. It fills the gap between free but code-heavy (R) and intuitive but expensive (CMA).
Limitations: Development has slowed since the original NIH-funded project ended. Some features are buggy or incomplete. The software does not support network meta-analysis, dose-response analysis, or Bayesian methods. Output quality (especially forest plot aesthetics) lags behind CMA, Stata, and R. OpenMeta[Analyst] should not be the primary tool for complex or high-stakes analyses.
Jamovi and JASP: Friendly Interfaces Built on R
Jamovi and JASP are free, open-source statistical software packages that provide graphical interfaces on top of the R engine. Both include meta-analysis modules that make R's metafor calculations accessible without writing code.
Pricing: Both are free and open-source. Available for Windows, macOS, and Linux.
Jamovi offers meta-analysis through the MAJOR (Meta-Analysis with Jamovi using metafOR) module. It supports random-effects and fixed-effect models, forest plots, funnel plots, publication bias tests (Egger's, fail-safe N), and basic meta-regression. The interface is clean and modern, with real-time updating of results as data is entered. Jamovi's module ecosystem continues to grow, and the meta-analysis module receives regular updates.
JASP includes a built-in meta-analysis module with both classical and Bayesian meta-analysis options. The Bayesian meta-analysis feature is distinctive. JASP allows researchers to run Bayesian random-effects meta-analysis with default or custom priors, producing Bayes factors and posterior distributions alongside traditional estimates. This makes JASP the only free GUI-based tool offering Bayesian meta-analysis without requiring code.
Learning curve: Low. Both tools use spreadsheet-style data entry and menu-driven analysis. Researchers familiar with SPSS will find the interface immediately comfortable. JASP's Bayesian module adds conceptual complexity (understanding priors and Bayes factors), but the interface itself remains straightforward.
Best for: Jamovi suits researchers who want a free, modern, GUI-based tool for standard meta-analysis. JASP is ideal for researchers interested in Bayesian meta-analysis without the learning curve of R or WinBUGS/JAGS. Both are excellent for teaching.
Limitations: Neither tool supports network meta-analysis, multivariate meta-analysis, or complex meta-regression with multiple moderators. Forest plot customization options are more limited than R or Stata. For projects requiring advanced methods, both tools will eventually require supplementation with R code.
Several browser-based tools provide meta-analysis functionality without any software installation. These tools are useful for quick calculations, preliminary analyses, and educational purposes.
Research Gold's free tools are the most capable browser-based option and produce publication-quality output with no installation and no account. The forest plot generator creates publication-ready forest plots from your effect sizes and confidence intervals. The free funnel plot maker produces funnel plots for visual publication bias assessment. The effect size calculator converts between different effect size metrics (Cohen's d, Hedges' g, odds ratios, risk ratios, correlations). The leave-one-out sensitivity tool identifies influential studies. Unlike most web calculators, the figures are journal-ready and shareable straight from the browser.
Meta-Mar (meta-mar.com) offers free online meta-analysis with forest plot generation. It handles binary and continuous outcomes with fixed-effect and random-effects models. The interface is simple, but analytical options are limited. Meta-Mar works well for quick pooled estimates but lacks subgroup analysis, meta-regression, and publication bias testing.
MetaAnalysisOnline provides a browser-based interface for standard meta-analysis calculations. Like Meta-Mar, it is useful for quick analyses but does not support advanced methods.
Best for: Preliminary calculations, educational exploration, and generating individual plots or conversions. Not suitable as the primary analytical platform for a complete systematic review and meta-analysis.
Limitations: No tool in this category supports the full analytical pipeline required for a publishable meta-analysis. They lack data management, comprehensive sensitivity analysis, meta-regression, and subgroup analysis in an integrated workflow. Use them as supplements, not replacements.
Struggling with RevMan's limitations on your non-Cochrane review? Many researchers reach a point where they need meta-regression, custom forest plots, or advanced sensitivity analysis that RevMan simply cannot provide. Research Gold's statisticians run every analysis in R with the metafor package, delivering publication-ready forest plots, funnel plots, heterogeneity diagnostics, and reproducible R scripts. You get the power of R without learning to code. Request a free project quote and tell us what RevMan cannot do for your review.
