yUML
yUML creates diagrams from text and renders them as SVG or PNG.
What yUML is
yUML creates diagrams from text and renders them as SVG or PNG. Its documented diagram options include class, activity, use case, sequence, state, C4, journey, journey flow, roadmap, and timeline diagrams. Users can choose from eight renderer styles, including clean, midnight, sketch, napkin, and blueprint. The playground can turn a plain-English description into an editable diagram, while Fix with AI helps address DSL errors. Diagrams can be embedded in GitHub, Slack, Confluence, and Notion; SVGs can also be copied into Figma, Keynote, or Google Slides. Its API supports image embeds and authenticated rendering for scripts, CI pipelines, and server-side use. yUML offers web, API, and self-hosted options. The free plan includes public diagrams, size limits, five saved versions, five daily AI fixes, watermarked exports, and community support. Pro costs $5/user/mo and adds private diagrams, unlimited size and version history, 250 monthly AI fix credits, watermark-free exports, and developer API access. The original renderer remains for existing embeds, while new features are on app.yuml.me.
Good
- Renders diagrams as SVG or PNG
- Offers ten documented diagram types
- Plain-English descriptions can become editable diagrams
- Embeds in GitHub, Slack, Confluence, and Notion
- Free plan is available
Watch out
- Free diagrams are public
- Free plan limits diagram size and saved versions
- Free exports carry a watermark
- Original renderer is in maintenance only
Who it suits
yUML suits writers, educators, engineers, founders, and AI builders who want to create diagrams for communication, documents, or automation. Its API and self-hosted options may suit teams incorporating diagram rendering into their workflows.
Verdict
yUML offers text-based diagram creation, several diagram types, and integrations for documents and development workflows. The free plan has clear export and size limits; Pro costs $5/user/mo.
Plans and prices
From yUML's own pricing page, checked 7 Oct 2001.
| Plan | Price | What it gives you |
|---|---|---|
| Pro | $5 a month | Public and private diagrams · Unlimited diagram size and version history · 250 AI fix credits per month · No watermark · Developer API access |
| Pro | $50 a year | Public and private diagrams · Unlimited diagram size and version history · 250 AI fix credits per month · No watermark · Developer API access |
| Free | — | Public diagrams · Limited diagram size · Last 5 versions per diagram · 5 AI fixes per day · Watermark on exports · Community support |
| Enterprise | Priced on request | Everything in Pro · Unlimited users · SSO · Self-hosted deployment · Custom contracts and SLAs · Dedicated onboarding and support |
The facts
Each one read from yUML's own pages, with the date it was checked.
What it does
- AI features
- The playground can turn a plain-English description into an editable diagram, and Fix with AI helps correct DSL errors.checked 7 Oct 2001
- API
- The API supports GET image embeds and authenticated POST rendering for scripts, CI pipelines, and server-side use.checked 7 Oct 2001
- Data handling
- The homepage says Pro accounts can bypass the render cache so generated diagrams are not held on yUML's servers.checked 7 Oct 2001
- Diagram types
- The documentation lists class, activity, use case, sequence, state, C4, journey, journey flow, roadmap, and timeline diagrams.checked 7 Oct 2001
- Integrations
- Diagrams can be embedded in GitHub, Slack, Confluence, and Notion, and SVGs can be copied into Figma, Keynote, or Google Slides.checked 7 Oct 2001
- Intended users
- The product describes itself for writers, founders, educators, engineers, and AI builders creating diagrams for communication, documents, and automation.checked 7 Oct 2001
- Legacy support
- The original yuml.me renderer remains available for existing embeds but is in maintenance only; new features are on app.yuml.me.checked 7 Oct 2001
- Styles
- The renderer offers eight styles: clean, plain, boring, midnight, sketch, napkin, scruffy, and blueprint.checked 7 Oct 2001
- Support
- The Free plan includes community support; Pro lists priority support as coming soon, and Enterprise includes dedicated onboarding and support.checked 7 Oct 2001
- What it does
- yUML creates diagrams from text and renders them as SVG or PNG.checked 7 Oct 2001
The company
- Founded
- 2012checked 28 Sep 2001
- Headquarters
- Leeds, UKchecked 28 Sep 2001
- Maker
- The site identifies the maker as Pocketworks Mobile Ltd.checked 7 Oct 2001
Money
- Free API limits
- Unauthenticated API rendering is limited to 100 renders per hour and 500 per day per IP, with cache hits excluded from the limit.checked 7 Oct 2001
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