macOS
macOS 12 or newer
FREE & OPEN SOURCE
See what is using
your disk space.
A private disk space analyzer for every computer you use. Explore folders visually, find large and duplicate files, and reclaim storage without sending your data anywhere.
Buy me a coffeemacOS · Windows · Linux · Runs locally
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Choose your platform.
Every link always points to the newest release.
Windows
Windows 10 or newer
Linux
Most modern distributions
Diskloom
482 GBMacintosh HD
SELECTED ITEM
Applications
Size on disk128.4 GB
- Developer54.8 GB
- Creative31.2 GB
- Utilities18.7 GB
Know what uses space
Scan accessible folders and drives, then explore their actual on-disk size without losing the small items.
Find duplicate files
See which matching files consume storage, compare them privately, and choose the copy worth keeping.
Keep your data local
Filenames, paths, file contents, and scan results stay on your computer. No account required.
Benchmark when you need it
Measure sequential and random read and write performance with adjustable workloads.
DISK BENCHMARK
Measure more than capacity.
Test real read and write performance without leaving Diskloom. Compare large transfers with everyday random access across every writable drive.
- Sequential and random workloadsSEQ1M and RND4K tests at multiple queue depths.
- Throughput, IOPS, and variabilityMedian results make noisy runs easier to understand.
- You control the workloadChoose 1–5 runs and test files from 64 MiB to 64 GiB.
System performanceSample result
TESTREAD MB/sWRITE MB/s
SEQ1MQ8T13,842±1.2%3,116±1.7%
SEQ1MQ1T12,961±0.9%2,744±1.1%
RND4KQ32T1812207,872 IOPS645165,120 IOPS
RND4KQ1T17218,432 IOPS6115,616 IOPS
Results are medians · Warm-up pass excluded