Alternatives · Whiteboards
Gleek alternatives
As of Nov 13, 2026, the best Gleek alternative for most people is draw.io (3.2 GPA), third in our ranking of whiteboard and mind map tools. It's also the best free one.
Gleek compared with 5 alternatives: Mermaid, PlantUML, Flowchart Fun, Eraser and draw.io.
Gleek has a free plan. Paid plans start at €6.95 per month, billed monthly (€58.40 billed yearly). All 5 alternatives are free or have a free plan.
Listings checked up to Nov 12, 2026 · Where the facts come from
Black Friday: is there a Gleek sale?
At a glance
Price against what you get
Gleek starts at about $7.76 a month and scores 2.0 out of 4 on features, ease of use and platforms. 2 of the 5 alternatives on this chart score higher and start lower: PlantUML and draw.io.
Mermaid and Eraser score higher without starting lower. Flowchart Fun starts lower without scoring higher.
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
How each one differs from Gleek
Mermaid
Text-based diagramming platform with AI and a visual editor
- Mermaid starts at $10 per user / month, billed annually ($120 a year).
- Mermaid also covers presentations.
Suits: Developers who already write Mermaid syntax in docs or Markdown
PlantUML
Draw UML and other diagrams from plain-text descriptions
- PlantUML is free.
- PlantUML also lists a browser extension.
- PlantUML is open source, according to its own site.
- PlantUML also covers Gantt & timelines and mind mapping.
Suits: Developers who want diagrams stored as text in version control
Flowchart Fun
Text-based flowchart maker that draws diagrams as you type
- Flowchart Fun starts at $2 per month (billing basis not stated).
- Flowchart Fun is open source, according to its own site.
- Flowchart Fun also covers mind mapping.
Suits: People who prefer typing a flowchart to dragging shapes
Eraser
AI diagramming and docs canvas for engineering teams
- Eraser starts at $45 per member / month, billed annually ($60 billed monthly).
- Eraser also covers Markdown and documents.
Suits: Engineering teams documenting system architecture
draw.io
Free diagram editor that saves files to storage you choose
- draw.io is free.
- draw.io also lists macOS, Windows and Linux apps.
- draw.io is open source and self-hostable, according to its own site.
- draw.io also covers templates.
Suits: UML, ERD, network and flowchart diagrams at no cost
Limits worth knowing in Gleek
- Prices on the pricing page are in euros.
- The Free plan stores diagrams only in the browser's local database, shows ads and has no styling options.
- The FAQ says Gleek offers no free trial.
- Students and teachers get a 50% discount, requested by contacting Gleek.
Common questions
What are the alternatives to Gleek?
The alternatives to Gleek in this directory are Mermaid, PlantUML, Flowchart Fun, Eraser and draw.io. Each one has a side-by-side comparison with Gleek.
Is there a free alternative to Gleek?
Yes. PlantUML and draw.io are free to use. Mermaid, Flowchart Fun and Eraser have a free plan alongside paid ones.
Which Gleek alternatives work on Windows?
The Gleek listing does not include a Windows app. draw.io lists one.
Which Gleek alternatives work on macOS?
The Gleek listing does not include a macOS app. draw.io lists one.
Is there an open-source alternative to Gleek?
PlantUML, Flowchart Fun and draw.io are described as open source on their own sites.
When were these prices checked?
Each listing shows its own date. On this page they run from Oct 5, 2026 to Nov 12, 2026. Vendors change prices without notice, so confirm on their site before you buy.