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Verified Oct 16, 2026

Gleek

Verified Oct 16, 2026 Active
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Type diagrams instead of dragging boxes: a keyboard-first syntax for flowcharts, UML, ERDs and Gantt

text to diagramumlflowchartserdganttFreemium

Listed on EffectHub ·

Web
Screenshot of the Gleek website
#923
gleek.io as we captured it — our own screenshot, not the vendor’s press image.

Pricing

Pricing model
Freemium

Prices are in euros, so no USD figure is recorded: the FAQ puts Premium Monthly and Team at 6.95 euros a month (Team per user), Premium Yearly at 58.40 a year and the usage-billed Premium per Activity at 10.99 a month. Free keeps 5 files of 40 objects in the browser with PNG export and ads; there is no free trial, and students and teachers get 50% off.

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Overview

About Gleek

Gleek turns typed descriptions into diagrams using its own compact syntax, so the whole job is done from the keyboard. It covers flowcharts, entity-relationship diagrams, UML class, sequence, state-machine and object diagrams, Gantt charts and user journey maps, with an AI chat on paid plans that drafts the syntax when you do not know it. Diagrams can be themed, shared by link and connected to Git. It is made by Blocshop, a custom software firm in Prague, Czech Republic. The free plan keeps five diagram files of 40 objects each in the browser with PNG export only; Premium, priced in euros, adds server storage, unlimited files, SVG and PDF export, and students and teachers get half off.

Platforms
Web
API
Not confirmed
Last verified
Oct 16, 2026

Verified sources

  • Pricing FAQ: Premium Monthly and Team plans cost €6.95/month, Premium Per-Activity €10.99/month; Premium Yearly card 58.40 a year; Free limited to 5 files, 40 objects, PNG export, browser storage, no AI chat; no free trial; 50% student and teacher discount (15 October 2026)gleek.io ↗
  • Home page describes text-to-diagram syntax for flowcharts, ERD, UML, Gantt and user journeys, made by Blocshop (15 October 2026)gleek.io ↗
Fact check

Is Gleek legit?

We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.

TLS certificate
Issued by DigiCert Inc, valid until Apr 8, 2027Seen in our own connection to the site on Oct 16, 2026
Last checked
Oct 16, 2026The site answered
Operated by
Blocshop, CzechiaOur research, card verified Oct 15, 2026

How we collect these records

Editorial verdict

Pros & cons of Gleek

high confidence

If you think in text, Gleek is faster than any drag-and-drop canvas, and at 6.95 euros a month it undercuts the diagramming tools people usually reach for. The cost of the approach is its own syntax - not Mermaid, not PlantUML - so what you write here stays here.

Pros

  • Its own terse syntax covering flowcharts, UML, ERD, Gantt and user journeys
  • AI chat drafts the syntax when you do not know it
  • Git connection, shareable links and custom themes
  • Usable free tier, and Premium at 6.95 euros a month or 58.40 a year

Cons

  • Proprietary syntax rather than Mermaid or PlantUML, so diagrams are not portable
  • Free tier caps you at five files of 40 objects, stored only in the browser, with PNG export, ads and no AI chat
  • No API and no desktop application

Best for

  • Developers and architects who would rather type than drag
  • Keeping diagrams close to code through the Git connection
  • Teams needing UML, ERD and sequence diagrams on a small budget

Not for

  • Collaborative whiteboarding with sticky notes and live cursors
  • Anyone already committed to Mermaid or PlantUML syntax

Watch out: The 10.99-euro 'per activity' plan is not a higher tier - it bills against last month's usage, so a heavy month lands on the following invoice.

#16inDiagramming & Whiteboards· of 39 tools, ranked by rating and popularity

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