draw.io vs Pencil Project (2026): which should you pick?
As of Nov 13, 2026, we pick draw.io: it is third in our ranking of whiteboard and mind map tools, and it grades higher too, 3.2 against 3.0.
Checked Oct 5, 2026 and Nov 13, 2026 · graded Oct 10, 2026 and Nov 13, 2026 by ToolGPA
draw.io grades higher on features and platforms. Pencil Project grades higher on ease of use. They get the same grade on value for money and the free plan.
Price, platforms and features side by side. The table says where each price was read and when.
Pencil Project
Free open-source desktop tool for GUI mockups and diagrams
Which one is for you
Pick draw.io if
- Fits if you want UML, ER or network diagrams without paying or signing up
- Makes sense if your data rules say files must stay in your own storage
Look elsewhere if
- Skip it if you want one hosted workspace for the team, as every diagram is just a file in your storage
- Watch out: live co-editing only works with files in Google Drive, OneDrive or Dropbox, or inside Confluence
- Not for you if you diagram on a phone, since no native mobile apps are listed
- Watch out: the Confluence and Jira apps are licensed separately through the Atlassian Marketplace, unlike the free editor
Pick Pencil Project if
- Fits if you sketch app or website mockups offline
- Works for people who want a free desktop alternative to subscription whiteboards
Look elsewhere if
- Skip it if you need real-time collaboration, because it's single-user
- Not for you if you want a web or phone version, as none is listed
- Too light for an infinite freehand whiteboard: it's for mockups and diagrams
- Watch out: it's offered as standalone packages, so sharing means exporting files
How we grade them
| 3.2GPAdraw.ioVery good | 3.0GPAPencil ProjectVery good | |
|---|---|---|
| Value for money | AFree, in a category where the middle plan is $8.33 a month. The online editor, the desktop apps and a self-hosted container all cost nothing, and the editor has no paid tier at all. The only things sold are the separate Confluence and Jira apps. | AFree to download and use, and open source. The category's middle for paid plans is $8. |
| Free plan and trial | AThe whole editor is free with no account and no sign-up, so there's no cap to reach and nothing held back for payers. That covers the browser version, the desktop apps on Windows, macOS and Linux, and a copy you host yourself. | AFree outright with no account or cap; the project accepts voluntary support. |
| Features | BIt covers the drawing job: shape libraries for flowcharts, UML, ER models, network, rack and circuit diagrams, org charts and floor plans, diagrams built from Mermaid, CSV or SQL, AI drafting and SVG, PNG or PDF export. Live co-editing is conditional, though, needing Drive, OneDrive, Dropbox or Confluence. | CShape collections, connectors, page links and export to PNG, PDF and SVG. It does the mockup job fully, but it's a smaller job, and it has no collaboration. |
| Ease of use | CNo rating on record. There's no sign-up, but you pick where files live before you share anything, and the shape libraries for UML, BPMN and network kit take time to learn rather than being obvious on day one. | BNo store rating on record, but you install it and start drawing with nothing to set up. |
| Platforms and integrations | BBrowser plus Windows, macOS and Linux desktop apps, and it plugs into Confluence, Jira, Google Drive, Google Docs, OneDrive, SharePoint, GitHub and Notion. No native phone apps are listed: the docs suggest adding the web editor to your home screen. | CPrograms for Mac, Windows and Linux only. No web, iPhone or Android version, and OpenClipart is the one connection named. |
| Best for | free technical diagrams you store yourself | free offline mockups and diagrams on a desktop |
The GPA is the average of the five grades: an A is 4 points, an F is none. The full reasons are on each tool's page: draw.io and Pencil Project. How we grade
Price against what you get
draw.io has no paid plan and scores 2.7 out of 4 on features, ease of use and platforms. Pencil Project has no paid plan and scores 2.3.
draw.io scores higher for the same starting price. Of the other whiteboard and mind map tools on the chart, none scores higher than draw.io for less, and none scores higher than Pencil Project for less.
Features, ease of use and platforms, averaged
What paid plans start at, a month (each step along is roughly double) →
- The best score at each price
- Has a free plan
- No free plan
Where they differ
- draw.io is self-hostable, according to its own site.
At a glance
| draw.io | Pencil Project | |
|---|---|---|
| Pricing | Free | Free |
| Starts at | Free | Free |
| Free plan | The online editor, the desktop apps and self-hosted deployment are free with no account and no paid tier. The apps for Confluence and Jira are licensed separately through the Atlassian Marketplace. | Free to download and use; the project accepts voluntary support. |
| Free trial | None listed | None listed |
| Web | ||
| macOS | ||
| Windows | ||
| Linux | ||
| Made by | draw.io Ltd | Evolus |
| Price read from | drawio.com | pencil.evolus.vn |
| Checked | Oct 5, 2026 | Nov 13, 2026 |
Worth knowing
draw.io
- There is no hosted workspace or account: every diagram is a file kept in the storage you pick, so sharing depends on that storage.
- Real-time co-editing needs the file to be in Google Drive, OneDrive or Dropbox, or the diagram to be in draw.io for Confluence.
- No native mobile apps are listed; the docs suggest adding the web editor to a phone's home screen instead.
- Using draw.io inside Confluence or Jira needs the vendor's Atlassian Marketplace apps, which are licensed separately from the free editor.
Pencil Project
- It is a single-user desktop app; the pages read describe no real-time collaboration or hosted version.
- It is a mockup and diagram tool, not an infinite freehand whiteboard.
- The Linux, macOS and Windows builds are standalone packages; no web, iOS or Android version is listed.
Key features
draw.io
- Shape libraries for technical diagrams
- Libraries and templates cover process flows, org charts, floor plans, network infrastructure, UML, entity relationship models, circuit and rack diagrams, and infographics.
- Storage you choose
- Diagrams are saved to Google Drive, OneDrive, Dropbox, GitHub, GitLab, the browser or the local device. The online editor does not store diagram data on the vendor's servers.
- Offline desktop app and self-hosting
- A stand-alone desktop app for Windows, macOS and Linux works with no internet connection, and the editor can be deployed in a self-hosted Docker container.
- Co-editing with shared cursors
- People editing the same diagram see each other's changes in real time when the file is stored in Google Drive, OneDrive or Dropbox, or in draw.io for Confluence.
- Diagrams generated from text
- The editor builds diagrams from Mermaid code, CSV spreadsheet data or SQL code, and an AI tool can generate a diagram from a written description.
- Import, export and embedding
- Files from other diagramming tools can be dropped in and edited, and diagrams export to SVG, PNG or PDF or embed as interactive viewers in docs, wikis and web pages.
Pencil Project
- GUI prototyping shapes
- Built-in collections cover general shapes, flowchart elements, desktop and web UI parts, and Android and iOS interface elements.
- Diagrams with connectors
- Connectors wire shapes together, and the flowchart shape collection supports basic diagram drawing.
- Inter-page linking
- Elements can link to another page in the same document, which helps define the flow of an app or website mockup.
- Export formats
- Documents export as PNG files, a web page, OpenOffice or LibreOffice text documents, Inkscape SVG and PDF.
- AI assistants through MCP
- Since version 4.0.0 a built-in Model Context Protocol server lets AI assistants insert and edit shapes in open documents.
Plans
draw.io
Free$0
The full editor online at app.diagrams.net, as a desktop app for Windows, macOS and Linux, or self-hosted in a container. No sign-up is needed.
Pencil Project
Free$0
The full application is free and open source, with no paid plans listed.
Ways to pay less
draw.io
- Nonprofit
Free Confluence and Jira Cloud license for charities
draw.io's licensing docs say charitable organizations and partners are eligible for a free license for its Confluence or Jira Cloud apps.
Pencil Project
No public discounts listed.
Common questions
Which is cheaper, draw.io or Pencil Project?
As of Nov 13, 2026, both draw.io and Pencil Project are free to use.
Which has a free plan, draw.io or Pencil Project?
As of Nov 13, 2026, both draw.io and Pencil Project have a free plan.
Which platforms do draw.io and Pencil Project run on?
As of Nov 13, 2026, only draw.io lists a web app. Both list macOS, Windows and Linux apps. A platform missing from a listing is one its maker's pages did not mention.
More comparisons
How this page was made
- The verdict at the top follows a fixed rule. When both tools are in the same category and either is in our top three for it, the verdict follows that ranking: the higher-placed tool is our pick. The top three weigh who each tool suits as well as its grades, so a pick can go against the GPA. Otherwise the page does not pick one and says which grades higher: the higher GPA first; on a tie, the one with a free plan, then the one that starts cheaper in dollars a month, counted the same way for both; if they are still level, what the choice depends on.
- The grades are our own, from each tool’s review or report card. The GPA is their average.
- Prices, plans and platforms come from each tool’s listing. The table above says where each price was read and when.
- The differences and the answers to the questions are worked out from those listings.