git-sizer VS ThrowCalc

• Comprehensive Repository Analysis
  git-sizer analyzes many different dimensions of a Git repository including commit count, tree size, blob size, history depth, and reference counts, providing a holistic view of repository health and potential scaling issues.
• Easy to Use
  The tool is simple to run with minimal setup—just execute it within a git repository—and it produces clear, human-readable output that highlights potential problem areas without requiring complex configuration.
• Identifies Performance Bottlenecks
  It helps identify specific issues that could degrade Git performance, such as excessively large blobs, deep history, large trees, or too many references, which is valuable before migrating or scaling repositories.
• Open Source and Maintained by GitHub
  Being an official GitHub project, it benefits from credibility, community trust, and ongoing maintenance, and it is well documented with clear explanations of what each metric means.
• Useful for Pre-Migration Checks
  It's particularly helpful for teams migrating repositories to new platforms or consolidating repos, as it flags potential issues that could cause problems during migration or with hosting providers' limits.

Possible disadvantages

• No Automatic Remediation
  git-sizer only identifies and reports issues but does not offer any built-in tools or automated processes to fix problems like large blobs or excessive history depth—users must use separate tools like BFG Repo-Cleaner or git-filter-repo.
• Output Can Be Overwhelming for Beginners
  While detailed, the output includes many metrics and threshold levels that may be confusing for users unfamiliar with Git internals, requiring some learning curve to fully interpret results.
• Limited to Local Analysis
  The tool analyzes a local clone of the repository, so it requires users to have a full local copy of the repo (or at least enough history) to get accurate results, which can be time-consuming for very large repositories.
• No Real-Time Monitoring
  It functions as a one-time analysis tool rather than providing continuous or real-time monitoring of repository health, requiring manual reruns to track changes over time.
• Command-Line Only Interface
  The tool lacks a graphical user interface, which may be less accessible for users who prefer visual dashboards or are less comfortable with command-line tools.

• Specialized focus
  ThrowCalc appears to be tailored specifically for throwing-related calculations (such as track and field throwing events), which can make it more relevant and useful for athletes and coaches than a generic calculator.
• Convenience
  As a web-based tool, it can be accessed from a browser without needing to install software, allowing users to perform calculations quickly from various devices.
• Time-saving
  Automating calculations that would otherwise be done manually can save coaches and athletes significant time and reduce the chance of arithmetic errors.
• Accessibility
  An online calculator lowers the barrier to entry, potentially making useful analytical tools available to amateur athletes and smaller programs that lack expensive equipment or software.
• Ease of use
  Purpose-built calculators typically offer a streamlined interface focused on a narrow set of inputs and outputs, making them straightforward for non-technical users.

Possible disadvantages

• Limited scope
  A niche tool focused only on throwing calculations may not be useful to a broad audience or for needs outside its specific purpose.
• Uncertain accuracy
  Without transparent documentation of the formulas and assumptions used, users cannot easily verify that the results are reliable or scientifically sound.
• Internet dependency
  Being a web-based service, it requires an active internet connection and may be unavailable if the site experiences downtime or is discontinued.
• Unclear data privacy
  It may be unclear how any entered data is stored or handled, which could raise privacy concerns for users inputting personal or performance data.
• Limited information available
  There is little publicly available detail about the tool's features, support, updates, or pricing, making it hard to fully evaluate its long-term reliability and value.

• how to keep github repos small?

  Also there’s a cool project from GitHub you can use to help understand the size of git’s objects in your git repo https://github.com/github/git-sizer. This might help you determine what the best cloning strategy could be. Source: almost 5 years ago

Tracking ThrowCalc since Jul 2026.