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Developer tools / draw.io

draw.io

Free diagramming application with 100M+ users. Store your data wherever you want—we can't access it.

Free optionNo signupFile handling unclearWebsite health 4 / 5

Where it stands

3.6 / 5

Signals score

Not a hands-on test

Based on 1 of 3 signals

  • Website health4 / 5 · weight 50%

    Measured from the tool's public website

Built only from what we can measure or quote without using the tool. How ranking works

Rank by signals

We have not run our own hands-on test on draw.io yet. Facts checked 2026-11-08. How tests work

Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.

Should you use draw.io?

A quick read built only from what the tool's own pages state and from our tests, not from opinion. Facts checked 2026-11-08.

A good fit if…

  • You want to use it without creating an account. Its own pages say none is needed.
  • You want a free option. It states: “draw.io is free forever with no sign-up required and no lock-in. The page says: “Free forever • No sign-up required • No lock-in.””

Check first

  • Its pages do not state: pricing, watermark. Check on the tool's site before you rely on it.

Does: Diagram maker

Measured signals

4 / 5 · measured 2026-11-08

Read automatically from draw.io's public website: how reliable, secure, private and open the site is. This is not a test of how well the tool does its job. How this is measured

  • Reliability5 / 5The page answered and finished downloading in 81 ms.
  • Security4.3 / 53 of 5 protective headers set (strict-transport-security, x-content-type-options, referrer-policy).
  • Privacy5 / 5No third-party tracking services found on the page.
  • Transparency1 / 5No privacy policy linked; no pricing page linked.

Community feedback

We found no public discussion of this tool to read.

A score needs at least 12 different commenters across 2 threads.

Free tier
draw.io is free forever with no sign-up required and no lock-in. The page says: “Free forever • No sign-up required • No lock-in.”
Paid plan
Not stated.
Signup
No account or credit card is required to use draw.io. The page says: “No account required. No credit card. Just open and create.”
Watermark
Not stated.
Where files go
Users can store their data wherever they want, and draw.io cannot access it. The page says: “Store your data wherever you want. We cannot access it—ever.”

From the tool's own pages, checked 2026-11-08. Sources: Home. Prices and limits change; check the tool before you rely on them.

Read automatically by a program, not by a person. Each fact quotes the sentence it came from, and a fact is shown only if that sentence is on the page. Where a page did not say, it reads “Not stated.”

Get an email if draw.io changes

We check its official pages every week. If they change, we tell you, so you can see if the price or limits moved. No other email, and one click stops it.

Are you the maker of draw.io? Link to this page

Copy this into your site. The link goes to this page, and it does not change any score.

<a href="https://agathox.com/tools/draw-io">draw.io on agathox: compared and tested</a>

Tasks and scores

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Top signals in Diagram maker.

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