Free my Mac vs Prelint
Side-by-side comparison of features, pros & cons, pricing, and community votes (2026).
🏆 Prelint leads with 664 upvotes

A Mac disk cleaner without the subscription.
Free my Mac is an open-source disk cleaning utility designed specifically for macOS users seeking a clutter-free and optimized system without the hassle of subscriptions or intrusive telemetry. It quickly scans your entire Mac to identify unnecessary files such as caches, logs, duplicates, and developer junk like Xcode DerivedData, iOS Simulators, npm, cocoapods, and gradle. One of its standout features is its ability to detect APFS clones and Time Machine snapshots, providing users with an accurate view of reclaimable space. Its root-owned system files are managed with a single admin prompt, simplifying the cleaning process. Built with a keyboard-first, inter-typed interface, it emphasizes efficiency and ease of use for power users and developers alike. As open-source software licensed under MIT, it appeals to those who value transparency, privacy, and a no-cost solution for maintaining disk health.
Pros
- Open-source and free, with no subscription or telemetry
- Fast and comprehensive scan of system junk and developer artifacts
- Detects advanced storage elements like APFS clones and Time Machine snapshots
- User-friendly keyboard-driven interface for efficiency
- Minimal prompts with a single admin confirmation for system files
Cons
- Limited to macOS, not available for other platforms
- May require some technical familiarity to maximize its features
- Lacks a graphical user interface, relying on keyboard commands
Best for
- • Regular disk cleanup for macOS users seeking to free up space
- • Developers cleaning Xcode caches and derived data after project builds
- • Users managing Time Machine snapshots to prevent storage bloat
- • Removing duplicate files and system junk accumulated over time
Pricing: Free and open-source, with no paid tiers or subscription fees, making it accessible to all users at no cost.

Prevent product drift in AI-written code
Prelint is an innovative AI-powered code review tool designed to ensure code quality and consistency in teams leveraging AI-generated code. By automatically reviewing pull requests against architectural decision records (ADRs), documentation, and past decisions, Prelint helps prevent product drift and maintains alignment with project standards. Its unique capability to catch issues early—especially in environments where multiple AI reviewers are used—makes it an essential addition for modern development workflows. With the ability to identify approximately 40% of issues before merging, Prelint significantly reduces bugs and rework, leading to more reliable and maintainable codebases. Ideal for software engineering teams seeking to integrate AI into their CI/CD pipeline, it offers a proactive approach to code validation that complements traditional review processes.
Pros
- Automates comprehensive code review against ADRs, docs, and past decisions
- Prevents product drift early in the development lifecycle
- Reduces post-deployment bugs and rework
- Enhances team collaboration by enforcing standards
- Effective in environments with multiple AI reviewers
Cons
- May require initial setup to align with specific ADRs and documentation
- Dependent on the quality of input data and existing documentation
- Potential false positives in complex or rapidly evolving projects
Best for
- • Reviewing AI-generated code to ensure adherence to project standards
- • Preventing feature creep and maintaining product consistency
- • Automating code review in CI/CD pipelines
- • Supporting teams using multiple AI code reviewers
Pricing: Likely operates on a subscription-based model, possibly with tiered plans based on team size or usage volume. A free tier or trial may be available to evaluate its capabilities before committing to paid plans.