BenchRank
#19 in Storage & CDNUpdated 2026-08

TreeSize

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

BenchRank score

42.4 — BenchRank score out of 100

Screenshots of TreeSize

Homepage · TreeSize

Homepage of TreeSize

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

How TreeSize markets itself

A structured read of the promise, proof and page design on TreeSize’s captured homepage.

Homepage capture

“Free Up Disk Space in Minutes”

  • Angle: Speed / time-to-value
  • Hero: Abstract graphic

Pricing

Published plans and prices from TreeSize’s own pricing page.

How this score is made up

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

  • MCP support

    Whether an agent can drive the product through the Model Context Protocol, and how much setup that takes.

  • Documentation

    Publicly reachable docs — coverage, freshness, code samples and machine readability.

  • Agent friendliness

    How readable the site is to an automated client: llms.txt, structured data, server-rendered content, crawler access.

  • Customer sentiment

    Third-party ratings, shrunk toward the catalogue mean by review volume and corroborated across independent sources.

  • Changelog

    A public, dated record of what shipped and when — the clearest signal that a product is still alive.

  • Marketing site structure

    Whether the site answers a buyer's questions: clear positioning, the pages that matter, and accessibility.

  • Page speed

    How fast the site loads for real visitors: Chrome UX Report 75th-percentile LCP, INP and CLS, with a Lighthouse mobile run standing in where a site has too little traffic for field data.

  • Operational trust

    Status page and incident history, security disclosure, compliance and data-processing documentation.

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

    Source availability, self-hosting, data export and open standards. Scored and shown, but not part of the composite — paid SaaS is not worse for being paid SaaS.

  • Maintenance

    Release cadence and repository activity. Scored and shown, but not part of the composite — it is only measurable for open repositories.

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Where this comes from

The TreeSize pages BenchRank reads when it scores the product — its documentation, release notes, status and security pages, and its repository where there is one.

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