Lucidchart vs MermaidViewer: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Lucidchart and MermaidViewer side by side. This page compares data; it is not a hands-on review.
On the data: On the data below, MermaidViewer leads on lower entry price. We do not name an overall winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Lucidchart
Create and collaborate on any diagram, from flowcharts to technical designs
Best for you if:
- • You want professional diagrams
MermaidViewer
Create Mermaid diagrams from text, code, or AI with live preview
Best for you if:
- • Developers and technical writers who document systems with Mermaid diagrams
| At a Glance | Lucidchart | MermaidViewer |
|---|---|---|
Starts at | Free plan, paid from $9/mo, billed monthly Individual plan | Free plan, paid from $6.99/mo, billed monthly Starter plan |
Category | Diagramming Productivity | Diagramming AI Assistants |
Rating | 4.1/5 G2 4.5 · Capterra 4.6 · SourceForge 2.4 9,651 reviews | n/a |
Free plan | Yes | Yes |
Watch out for | Team plan requires minimum users (unspecified) | n/a |
Choose Lucidchart or MermaidViewer?
Choose Lucidchart if
- You want professional diagrams
- You want real-time collaboration
Choose MermaidViewer if
- Developers and technical writers who document systems with Mermaid diagrams
- You want create Mermaid diagrams from text, code, or AI with live preview
- Budget matters ($6.99/mo, billed monthly vs $9/mo, billed monthly)
In-Depth Analysis
Lucidchart
Create and collaborate on any diagram, from flowcharts to technical designs
Lucidchart's pricing is fair, offering a generous Free tier and competitive Individual plan at $9/month.
Watch out
Team plan requires minimum users (unspecified)
Strengths
- Pro: Professional diagrams
- Pro: Real-time collaboration
- Pro: Templates library
Weaknesses
- Con: Limited free tier
- Con: Can be slow
Key features
MermaidViewer
Create Mermaid diagrams from text, code, or AI with live preview
At $0 for export-only, $6.99/month for cloud saves and extra AI credits, and $11.99/month for SVG/PDF export, MermaidViewer is unusually cheap compared to most diagram-as-a-service tools.
Key features
Plans and prices: Lucidchart vs MermaidViewer
| Tool | Plans and prices | Source |
|---|---|---|
| Lucidchart |
| lucidchart.com/pricing read Sep 30, 2026 |
| MermaidViewer |
| mermaidviewer.net/pricing read Oct 9, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Lucidchart pricing and MermaidViewer pricing.
Key Takeaways
Lucidchart
- Choose if you want create and collaborate on any diagram, from flowcharts to technical designs
MermaidViewer
- Lower entry price: $6.99/mo, billed monthly vs $9/mo, billed monthly
What the data shows
On the data below, MermaidViewer leads on lower entry price. We do not name an overall winner for this pair.
- Only Lucidchart has a published user rating (4.1/5 from 9,651 reviews); MermaidViewer has none we can show.
- MermaidViewer has the lower entry price: $6.99/mo, billed monthly (Starter) against $9/mo, billed monthly (Individual) for Lucidchart.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do Lucidchart and MermaidViewer compare in 2026?
On the data below, MermaidViewer leads on lower entry price. We do not name an overall winner for this pair. Only Lucidchart has a published user rating (4.1/5 from 9,651 reviews); MermaidViewer has none we can show. MermaidViewer has the lower entry price: $6.99/mo, billed monthly (Starter) against $9/mo, billed monthly (Individual) for Lucidchart. Both have a free plan.
What are Lucidchart and MermaidViewer used for?
Lucidchart: Create and collaborate on any diagram, from flowcharts to technical designs. MermaidViewer: Create Mermaid diagrams from text, code, or AI with live preview.
What does Lucidchart cost vs MermaidViewer?
Lucidchart's cheapest paid plan is Individual at $9/mo, billed monthly; it also has a free plan. MermaidViewer's cheapest paid plan is Starter at $6.99/mo, billed monthly; it also has a free plan. Prices read on the vendors' pricing pages, latest check Oct 9, 2026.
What's the main difference between Lucidchart and MermaidViewer?
Lucidchart's main strength: professional diagrams. MermaidViewer focuses on create Mermaid diagrams from text, code, or AI with live preview.