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Toolradar Data

Diagramming Tools Statistics 2026

Live data on Diagramming software, computed from the Toolradar catalog. Ratings and review counts are aggregated across third-party review platforms (G2, Capterra, Trustpilot, SourceForge).

53

Diagramming tools published and tracked on Toolradar as of October 4, 2026.

See the best Diagramming toolsAll statistics

Last updated October 4, 2026. Reviewed by Louis Corneloup.

Key findings

  • Toolradar tracks 53 Diagramming tools as of October 4, 2026, 0% of its 10,902-tool directory.
  • Diagramming tools average 4.42 out of 5 across 37 rated tools and 48,012 reviews aggregated across third-party review platforms (G2, Capterra, Trustpilot, SourceForge).
  • 75% of Diagramming tools offer a free tier, 40 of 53.
  • 50 Diagramming tools were added to Toolradar during 2026, 94% of the category.
  • Miro is the highest-rated Diagramming tool at 4.6 out of 5 from 13,566 reviews.

Source: Toolradar catalog, computed live on October 4, 2026.

Headline numbers

Diagramming tools published on Toolradar

Source: Toolradar catalog, published status

53

Share of the whole Toolradar directory

Source: 53 of 10,902 published tools

0.5%

User reviews across Diagramming tools

Source: aggregated across third-party review platforms (G2, Capterra, Trustpilot, SourceForge), across 37 rated tools

48,012

Average Diagramming tool rating, weighted by review volume

Source: aggregated across third-party review platforms (G2, Capterra, Trustpilot, SourceForge); unweighted mean 4.39 / 5 across 37 rated tools

4.42 / 5

Diagramming tools added to the directory in 2026

Source: Toolradar createdAt, 94% of the category (directory add date, not vendor launch)

50

Pricing mix

How Diagramming tools split between a free path (free, freemium, open-source) and strictly paid.

Tools that offer a free tier

Source: Toolradar pricing labels, 40 of 53 Diagramming tools

75%

Tools that are strictly paid

Source: Toolradar pricing labels, 13 of 53 Diagramming tools

25%
Freemium29·55%Paid13·25%Free11·21%

Where the reviews come from

Review volume for Diagramming tools by third-party platform.

G2 reviews

Across 37 Diagramming tools carrying a G2 profile

40,358

Capterra reviews

Across 21 Diagramming tools carrying a Capterra profile

7,054

SourceForge reviews

Across 7 Diagramming tools carrying a SourceForge profile

366

Trustpilot reviews

Across 3 Diagramming tools carrying a Trustpilot profile

202

PeerSpot reviews

Across 1 Diagramming tool carrying a PeerSpot profile

17

TrustRadius reviews

Across 1 Diagramming tool carrying a TrustRadius profile

15

Highest-rated Diagramming tools

Top-rated Diagramming tools with at least 500 third-party reviews.

Most reviewed Diagramming tools

The Diagramming tools carrying the most third-party reviews.

Diagramming growth in 2026

Diagramming tools added to Toolradar in 2026

Source: Toolradar createdAt, 94% of all Diagramming tools

50

Explore Diagramming tools

Best Diagramming tools All statistics All categories

Methodology and sources

Every figure is computed live from the Toolradar catalog, published Diagramming tools only. Ratings and review counts are aggregated across third-party review platforms (G2, Capterra, Trustpilot, SourceForge) and are not the site's own reviews. Added in 2026 means added to the Toolradar directory this year, not the vendor's launch date. Leaderboards apply a 500-review floor. See how we rate.