#23 in Storage & CDNUpdated 2026-08

TreeSize

by TreeSize · Windows disk space analyser with treemap charts and reporting

37.3 — BenchRank score out of 100

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Overview

TreeSize is a Windows disk space analyser from JAM Software. It scans local drives, network shares and cloud storage, then shows usage in an Explorer-like tree alongside pie, bar and treemap charts down to file level. Paid editions add duplicate search, filtered file search, bulk delete, move, rename and archive actions, and exports to PDF, Excel, HTML or CSV.

Best for: Windows users and IT admins who need to see what is filling a disk and clear it out
Pricing: TreeSize Free is 0,00 €, Personal is 20,40 € per user per year and Professional starts at 40,80 € per user per year, both billed annually after a 14-day trial.
Runs on: WindowsSelf-hosted

Strengths and trade-offs

Strengths

Treemap, pie and bar charts show where space has gone
Runs fully on-premise; no data leaves the PC
Exports to PDF, Excel or CSV, with scheduled or emailed delivery
Free edition for private, non-commercial use

Trade-offs

Windows desktop only; editions are labelled Windows Desktop
Free edition is limited to private, non-commercial use
Duplicate search and file filters need the paid Personal edition or above
Continuous monitoring means buying the separate SpaceObServer product

Pricing

Published plans from TreeSize’s own pricing page, in EUR. Usage charges and add-ons may apply on top.

TreeSize pricing tiers, monthly rates in EUR
Plan	Monthly	Includes
TreeSize Free	—per user	0,00 €, for private use in a non-commercial environment One-click visualisation of storage allocation down to file level Treemap chart of used disk space PDF reports of disk space usage
TreeSize Personal	—per user per year	20,40 € per user per year, annual billing, 14-day free trial Everything in Free, aimed at advanced users, freelancers and small businesses Filter for largest files and find duplicates to deduplicate Compare disk space usage over time
TreeSize Professional	—per user per year	From 40,80 € per user per year, annual billing, 14-day free trial Detailed disk space analysis, duplicate and large file finder Command line parameters and task scheduler options Custom exports in PDF, Excel and HTML; unlimited user licences on certain plans

How this score is made up

Each dimension is scored out of 100 and combined into the headline score using fixed weights.

MCP support: 0 out of 100
Documentation: 30 out of 100
Agent friendliness: 82 out of 100
Customer sentiment: 80 out of 100
Changelog: 0 out of 100
Marketing site structure: 60 out of 100
Operational trust: 15 out of 100

Measured, but not part of the score

Useful to know, but not a mark for or against the product — so these do not affect the ranking.

Openness: 85 out of 100
Maintenance: 100 out of 100

This doesn’t look right — report a problem with TreeSize’s score

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