
WinDirStat
TreeSize
SpaceSniffer
TeraCopy
Baobab Disk Usage Analyzer
DaisyDisk
Baobab
WizTree quickly finds the files and folders using the most space on your hard drive. It scans the MFT (Master File Table) instead of crawling the entire disk which makes it very fast.
Smarty
Zipcodestack
PostalDataPI
Geoco.io
Melissa Data Quality
Loqate
usZIPCodes.org
REST API for US ZIP, ZIP+4, and Canadian postal codes. Single unified endpoint covers address validation and standardization, radius search (centroid haversine and true spatial polygon intersection), point-to-point distance, autocomplete/typeah
Which is more popular?
Website, pricing, platforms and company facts side by side.
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ZIP
ZIP Code API
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|---|---|---|
| Website | antibody-software.com | zip-codes.com |
| Company | — | Startup from the United States · 2026 |
| Listed in |
In their own words, as submitted to SaaSHub.

No description of WizTree yet.
API for US ZIP, ZIP+4, and Canadian postal code data. One unified endpoint set covers North America — no separate APIs by country or data type. What it does Address validation and standardization — production-grade parser with ZIP+4 append, refreshed monthly Radius search — centroid haversine and...
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
WizTree is recommended for users who need to identify and manage large files on their computer quickly. It is particularly useful for IT professionals, system administrators, and any computer user looking to efficiently organize their storage without fuss.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
(reup old vid) PC Spotlight - WizTree - Find Whats Taking Up Hard Drive Space Quickly And Pain Free
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How often each product is chosen within a category, 0–100% relative to the other.

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When comparing WizTree and ZIP Code API, you can also consider the following products.

WinDirStat is a disk usage statistics viewer and cleanup tool, inspired by KDirStat.
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Smarty provides address validation, autocomplete, geocoding and reverse geocoding services covering addresses in over 240+ countries.
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TreeSize tells you where precious disk space has gone to.
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Free Zip Code API - Free Postal Code Validation | Zipcodestack
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SpaceSniffer is a freeWare (donations are welcome) and portable tool application that lets you understand how folders and files are structured on your disks.
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The most affordable postal code API. 240+ countries, sub-5 ms responses. Simple, elegant, transparent.
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