Open Source Mac Disk Space Analyzers
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Disk Space Analyzers for Mac
View 58 business solutionsBrowse free open source Disk Space Analyzers and projects for Mac below. Use the toggles on the left to filter open source Disk Space Analyzers by OS, license, language, programming language, and project status.
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CrystalDiskInfo
A HDD/SSD utility software
A HDD/SSD utility software which supports a part of USB, RAID and NVMe. -
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CrystalDiskMark
A simple disk benchmark software
A simple disk benchmark software. -
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GrandPerspective
Graphically shows disk usage for Macs
GrandPerspective is a utility application for macOS that graphically displays the disk usage of your file system. It can help you to manage your disk, as you can easily spot which files and folders take up the most space. -
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SpaceSniffer
Find lost disk space the easy way
SpaceSniffer is a freeware (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks. By using a Treemap visualization layout, you have immediate perception of where big folders and files are placed on your devices. Treemap concept was invented by Prof. Ben Shneiderman, who kindly permitted the use of his concept into this tool. -
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QDirStat
Qt-based directory statistics
Qt-based directory statistics: KDirStat without any KDE -- from the author of the original KDirStat. QDirStat is a graphical application to shows where your disk space has gone and to help you to clean it up. This is a Qt-only port of the old Qt3/KDE3-based KDirStat, now based on the latest Qt 5. It does not need any KDE libs or infrastructure. It runs on every X11-based desktop on Linux, BSD and other Unix-like systems and of course in a Docker container. -
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System Data Unpacked
See what is really inside macOS System Data and delete it
System Data Unpacked is a macOS storage analysis utility that reveals files categorized as System Data and helps users reclaim disk space. It scans approximately 180 storage locations across 19 categories, including caches, Xcode files, simulator runtimes, and developer tools. Each item displays its actual disk usage and a safety classification. Users can inspect folder contents, sort by inactivity, and delete selected items individually or in batches. A compression feature reduces the size of suitable folders without removing their contents. The application previews every deletion command before execution and maintains a local history of storage changes. Optional notifications warn about low disk space and significant storage growth. It operates through a desktop window or menu bar interface without uploading personal data. -
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TreeMap Disk Visualizer
Downloadable app that can run on mac, windows, and linux
TreeMap Disk Visualizer is an open-source disk analysis and cleanup application for Windows and macOS, with a browser-based mode for Linux. It displays storage usage through interactive treemaps, charts, grids, and three-dimensional visualizations. Users can explore folders, identify large files, and investigate storage consumption. Duplicate detection finds identical files and similar images. Historical scans reveal storage growth, changes, and potential disk capacity problems. Application and game library views identify caches and unnecessary data. A cleanup cart previews selected files before moving them to the system Trash. Additional tools include scheduled scans, storage alerts, automated cleanup rules, and file offloading. Its local-first architecture operates without telemetry or cloud processing. -
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BlitzTree
A fast, native disk-space treemap for macOS, in the spirit of WizTree
BlitzTree is a native macOS disk-space analyzer designed to visualize large file systems quickly through interactive treemaps. Its Rust scanning engine can process millions of files while the SwiftUI and AppKit interface remains responsive. Users can switch between cushion-shaded rectangular treemaps and ring-based directory visualization. A synchronized outline view helps identify large folders and files, which can then be revealed in Finder or moved to Trash. The Clean Up panel detects common disposable data such as caches, node_modules, build outputs, and Xcode artifacts. Optional Claude Code or Codex integration can propose cleanup candidates, while BlitzTree itself enforces protected-path and confirmation rules. The app currently requires Apple Silicon and macOS 14 or newer and includes a read-only JSON CLI for scripting. -
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squirreldisk
Free, open-source disk usage analyzer for macOS, Windows and Linux
squirreldisk is an open-source disk space analyzer for Windows, macOS, and Linux that helps users visualize storage consumption and remove unnecessary files. It displays folder sizes through interactive sunburst charts and treemaps that update as scanning progresses. Users can navigate directory structures, identify large files, and examine storage distribution at different levels. The application supports local drives, remote servers accessed through SSH, and cloud storage services through rclone. A collection area lets users gather files for deletion, transfer, or further review. Cleanup options include moving items to the Trash, permanent deletion, and secure overwriting. Protected system locations and confirmation prompts help prevent accidental data loss. Additional capabilities include command-line scanning, file manager integration, portable operation, and automatic updates when file contents change. -
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10
MangoDisk
Open-source disk cleaner for Windows, macOS and Linux
MangoDisk is a free, open-source disk cleaner for Windows, macOS and Linux. Find caches, large files, exact duplicates and app leftovers without digging through hidden folders. Explore disk usage with nested treemaps or a sunburst chart to see which folders take up the most space. Privacy Cleanup lets you review supported browser, app and system activity by time range. Clearing cookies can sign you out of websites. Also included: app uninstall, startup management, system optimization, common repair tools and an operation history. The resource panel shows CPU, memory, network and disk activity. Scans run locally and don't delete files. Choose what to remove and confirm before cleanup. No signup or login is required. Unsure about a file or an app? Optional online AI explanations cover cleanup items, startup entries, large files, duplicates and app uninstall. They explain purpose, impact and cautions; they don't delete files or replace your judgment. -
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spaceman
Treemap disk usage analyzer: In search of lost space
Treemap disk usage analyzer: In search of lost space (a.k.a. wata-analyzer) -
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Big File Finder (BFF)
Program to find (all) files above a size at a target dir
Big File Finder, a simple program to find (all) files above a size at a target dir. -
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ncdu
Ncdu is a disk usage analyzer with an ncurses interface
Ncdu is a disk usage analyzer with an ncurses interface. It is designed to find space hogs on a remote server where you don’t have an entire graphical setup available, but it is a useful tool even on regular desktop systems. Ncdu aims to be fast, simple and easy to use, and should be able to run in any minimal POSIX-like environment with ncurses installed. -
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Disk Drives Informations
Display information for disk drives. Require Ascoos Framework 24
This package displays a list of the disk drivers you have on your system. Creates a box-style formatted table that displays both the disk and the total, used, and free space on it. You can easily integrate it into any code as long as you follow the instructions below in the details and have Ascoos Framework 24 installed. -
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BazWare FLF (Find Large Folders)
Find that huge folder that you didn't know it was there
Are you tired of being unable to find what is using up precious hard disk space? Find that huge folder that you didn't know it was there. Select drive and press start to go through directories manually. Click the refresh button to calculate folder size, double-click to the folder name, or press "+" button to see sub folders. Deleting a folder is possible by clicking the bin button next to the folder. Increase the maximum number of folders when required. (Using more than 10 is recommended for large folders such as Program Files). -
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ClearDisk
Free macOS menu bar app to visualize and clean developer caches
ClearDisk is a free, open-source macOS utility designed to analyze and remove development-related caches and temporary files. It monitors disk usage from the menu bar and identifies storage consumed by programming tools. The software scans 79 cache locations covering Xcode, Docker, Homebrew, npm, pip, Cargo, and other development environments. Users can inspect storage categories and review explanations before deleting files. Its cleanup system identifies different risk levels and moves recoverable content to Trash. ClearDisk also detects outdated project artifacts and provides recommendations based on file age. Additional tools include disk capacity forecasting, storage alerts, and automatic updates. Built with Swift and SwiftUI, it operates locally without analytics or data collection. -
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diskover
File system crawler and disk space usage software
diskover is a file system crawler and disk space usage software that uses Elasticsearch to index your file metadata. diskover crawls and indexes your files on a local computer or remote storage server over network mounts. diskover helps manage your storage by identifying old and unused files and give better insights into data change "hotfiles", file duplication "dupes" and wasted space. It is designed to help deal with managing large amounts of data growth and provide detailed storage analytics. See GitHub for requirements and instructions on installing.
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