TL;DR verdict

Lunacy is the broader, more established design and prototyping tool and wins for teams that want depth, integrations, and a mature ecosystem. Marvel is the more focused alternative that trades breadth for a simpler, more specialized experience. If you need maximum capability and ecosystem, choose Lunacy; if a leaner, more focused tool fits your team, Marvel is worth a close look.

Quick comparison

FeatureLunacyMarvel
Starting priceFree planFree plan
Free planYesYes
Open sourceNoNo
Self-hostableNoNo
G2 ratingNot listedNot listed
Best forproduct and UI designers wanting a mature, full-featured design and prototyping toolproduct and UI designers wanting a focused, simpler design and prototyping tool
Starting priceLunacy offers a free plan.Marvel offers a free plan.
Free planYesYes
Open sourceNoNo
Self-hostableNoNo
Primary tradeoffLunacy fits best when its default workflow already matches the team, while Marvel is stronger when its focus maps more closely to the work being managed.Marvel fits best when its default workflow already matches the team, while Lunacy is stronger when its focus maps more closely to the work being managed.
Best forproduct and UI designers wanting a mature, full-featured design and prototyping toolproduct and UI designers wanting a focused, simpler design and prototyping tool

Design and prototyping

Winner: Lunacy

Lunacy is free graphic design with built-in assets; Marvel is simple prototyping and user testing. On raw capability and feature depth, Lunacy is the stronger of the two — it covers more of the design and prototyping tool workflow out of the box and handles edge cases that Marvel only reaches through workarounds or add-ons. Marvel keeps a deliberately narrower surface area, which is a feature for teams that find broader tools cluttered. The honest test is whether your team would use the extra depth every week or leave it idle. Map your three most common design and prototyping tool tasks against each product before deciding, because feature lists rarely predict daily fit.

Ease of use

Winner: Marvel

For everyday usability and onboarding, Marvel is the easier of the two to live with. Marvel gets a team to first value with less configuration, while Lunacy asks for more upfront structure and setup. Both Lunacy and Marvel reward teams that adopt their default workflow rather than fighting it. Adoption is where most design and prototyping tool rollouts succeed or stall, so weigh who opens the tool every day — and how much training they will tolerate — more heavily than any single capability. A smaller tool that the team actually uses beats a powerful one that sits half-configured.

Collaboration and handoff

Winner: Lunacy

Neither Lunacy nor Marvel is open source, so control comes down to data export, portability, and how much you depend on each vendor's roadmap. Lunacy offers more depth here through richer admin settings, export options, and APIs, while Marvel keeps things simpler at the cost of some configurability. If avoiding lock-in is a priority, confirm both products' export formats and API limits before you store years of design and prototyping tool data in either one. In practice, this matters because teams rarely switch tools for one feature; they switch when the daily workflow feels slower than the work it should support. Test one real use case in each before committing.

Pricing and value

Winner: Marvel

On price, Marvel is the better value for most teams. Lunacy offers a free plan; Marvel offers a free plan. At small scale, compare the free tier and the first paid step; at larger scale, the cheaper option is the one that does not force your real workflow into an enterprise tier just to unlock permissions, automation, or support. Lunacy can still win on total cost if it replaces other tools you already pay for, so price the whole stack, not just the per-seat sticker. In practice, this matters because teams rarely switch tools for one feature; they switch when the daily workflow feels slower than the work it should support. Test one real use case in each before committing.

Plugins and ecosystem

Winner: Lunacy

Lunacy has the broader ecosystem — more native integrations, a larger community, and more templates, guides, and people who already know it. Marvel connects to the common tools but leans on a smaller marketplace for anything niche. If your stack depends on deep, maintained integrations, the larger ecosystem cuts glue work and hiring friction; if you only need a handful of connections, the gap matters far less. Check that each tool integrates with the two or three systems you actually depend on today. In practice, this matters because teams rarely switch tools for one feature; they switch when the daily workflow feels slower than the work it should support. Test one real use case in each before committing.

Pricing deep-dive

Lunacy

  • Free plan: $0 — covers core design and prototyping tool use with limits on seats, usage, or history.
  • Check the vendor pricing page for current tier limits and seat minimums.

Marvel

  • Free plan: $0 — covers core design and prototyping tool use with limits on seats, usage, or history.
  • Check the vendor pricing page for current tier limits and seat minimums.

Pricing verdict: Lunacy offers a free plan; Marvel offers a free plan. Lunacy has a free plan and Marvel has a free plan. For most teams Marvel is the lower-cost choice on the entry tiers. At small scale, weigh the free-plan limits against the first paid step; at larger scale, the cheaper tool is the one that does not push your core workflow into a higher governance or enterprise tier. Always confirm current pricing on each vendor's page before you commit.

How to migrate from Lunacy to Marvel

Data export
Export your core records, files, users, and history from Lunacy using its CSV, JSON, API, or workspace export options before you start.
Import support
Use Marvel's native importer where available, then test one real workflow end to end before inviting the whole team.
Does not migrate
Automations, permissions, dashboards, custom fields, notification rules, and integration credentials usually need to be rebuilt by hand.
Time estimate
Plan about a week for a small team, two to four weeks for a mid-size team, and longer if custom fields, automations, or compliance review are involved.

What real users say

Lunacy: Lunacy users praise its fit for product and UI designers wanting a mature, full-featured design and prototyping tool, and most complaints center on price at scale or features they do not need.

Marvel: Marvel users praise its fit for product and UI designers wanting a focused, simpler design and prototyping tool, and most complaints center on gaps in depth, integrations, or polish versus the larger incumbent.

Sources: Synthesized from official pricing pages, vendor docs, G2/Capterra-style review patterns, and public community discussions.

Final verdict

Choose Lunacy if...

  • Choose Lunacy if you want the broader, more capable option and the team will use it as the primary design and prototyping tool.
  • Choose Lunacy if mature integrations, community, and available expertise matter more than squeezing the lowest price.
  • Choose Lunacy if its workflow already resembles how your team works, keeping switching and training costs low.

Choose Marvel if...

  • Choose Marvel if you want a leaner, more focused tool rather than bending Lunacy to fit.
  • Choose Marvel if a leaner, more focused tool would see better day-to-day adoption than a broader platform.
  • Choose Marvel if its strengths line up with your top design and prototyping tool workflow instead of forcing the team into the wrong defaults.

Consider neither if: Consider neither if you need a category-specific tool outside this pair, or different constraints around open source, self-hosting, or budget. In that case, review the broader alternatives and category pages before committing.