Best Card Sorting Tools in 2026

If you've gone looking for a free card sorting tool lately, you've probably noticed that "free" doesn't always mean what you'd expect. A lot of tools gate their card sorting behind short trials or cap you at a handful of studies. We wanted to lay out what's actually available right now so you can pick the right tool without wasting time on signup pages.

Here's a rundown of five options we looked at, what you actually get for free, and where each one falls short.

1. CardSort - Best Free Option

Full disclosure: this is our tool. That said, here's what you get on the free plan and why we think it holds up well against the alternatives.

CardSort's free plan covers open, closed, and hybrid card sorting with built-in analytics. You don't need to enter a credit card to sign up, and there's no trial clock ticking down.

What you get for free:

• Unlimited studies
• Unlimited participants per study
• Open, closed, and hybrid sorting
• Analytics dashboard and data export
• No credit card required

Limitations:

• The free plan caps you at 3 active studies and 50 responses per study
• Advanced features like custom branding and team collaboration require a paid plan
• Newer tool, so the analytics aren't as deep as what you'd find in Optimal Workshop

Best for: Freelancers, students, and small teams who need a purpose-built card sorting tool without paying for a full research platform.

2. Optimal Workshop - The Industry Standard

Optimal Workshop has been around for years and it's the tool most UX researchers know by name. Their card sorting module (OptimalSort) is genuinely excellent — solid participant experience, detailed analytics including dendrograms and similarity matrices, and good support for large-scale studies.

The catch is there's no permanent free plan. You get a 14-day trial with full access, and after that you're looking at plans starting around $149/month.

What's free:

• 14-day trial with all features unlocked
• Full analytics and export during the trial

After the trial: Plans start at $149/month

Limitations:

• No ongoing free tier — once the trial ends, you're locked out
• Expensive for individuals or small teams
• The trial period can feel rushed if you're still recruiting participants

Best for: Research teams with budget who need deep analytics, or anyone who wants to run a quick study and can wrap it up within two weeks.

3. Maze - Limited Free Plan

Maze is primarily a usability testing platform, and card sorting is one piece of a larger toolkit. Their free plan lets you run one active test at a time with up to 10 responses.

Ten responses is tight for card sorting. Most UX practitioners recommend somewhere in the range of 15-30 participants before you can feel confident in the patterns you're seeing. So while Maze is fine for a quick gut-check, you'll probably want more responses for anything you're basing real IA decisions on.

What's free:

• 1 active test at a time
• Up to 10 responses per test

Limitations:

• The 10-response cap makes it hard to draw strong conclusions
• Card sorting isn't Maze's core focus, so the experience is more generic
• Paid plans jump up quickly in price

Best for: Teams already using Maze for usability testing who want to run a quick, low-stakes card sort without adding another tool.

4. UsabilityHub/Lyssna - Three Studies, Then You're Done

Lyssna (formerly UsabilityHub) gives you three tests total on the free plan, with limited responses on each. Once you've used those three, that's it — you'd need to upgrade to a paid plan starting around $89/month.

Three studies is enough to try the tool and maybe run a small project, but it's not a long-term solution if you do card sorting regularly.

What's free:

• 3 tests total (lifetime cap)
• Limited responses per test

Limitations:

• The lifetime cap means you'll burn through your free studies fast
• Response limits are restrictive
• No way to reset the counter without paying

Best for: A one-off study or evaluating whether Lyssna's broader research platform is worth the subscription.

5. Google Forms/Sheets - The DIY Route

You can technically run a card sort using Google Forms, and it won't cost you anything. The tradeoff is that you have to build the whole thing yourself — create the form, figure out how to simulate a sorting experience in a linear form format, collect responses, and then manually analyze everything in Sheets.

It works, but it's a significant time investment and the participant experience isn't great compared to a dedicated tool.

What's free:

• Everything — it's Google Forms
• No limits on studies or responses

Limitations:

• No drag-and-drop sorting experience for participants
• No built-in card sorting analytics (dendrograms, similarity matrices, etc.)
• Manual data cleaning and analysis can take hours
• Participants may find the form-based format confusing

Best for: Researchers with zero budget and enough time to handle the manual setup and analysis.

Feature Comparison

What "Free" Usually Means in This Space

It's worth being upfront about the pattern here. Most card sorting tools use one of these models:

• Time-limited trials (7-30 days): You get everything, but the clock is ticking. Optimal Workshop does this.
• Freemium with hard caps: You get a permanent free tier, but with tight restrictions on studies or responses. Maze and Lyssna fall into this category.
• Actually free with tradeoffs: CardSort and Google Forms both let you run studies indefinitely, but CardSort has plan-level limits and Google Forms requires you to build everything from scratch.

None of these are inherently bad — they're just different models. The important thing is knowing what you're signing up for before you start recruiting participants and find out mid-study that you've hit a wall.

For most card sorting work, you'll want at least 15-30 participants to see meaningful patterns emerge. Keep that in mind when you're comparing free tiers, because a tool that caps you at 10 responses may not give you enough data to act on.

Our Recommendations

If you want a free, purpose-built tool: CardSort is the most straightforward option. You can get started quickly without a credit card, and the free plan is generous enough for small-to-medium studies.

If you have research budget and need depth: Optimal Workshop is hard to beat on analytics. If your team runs card sorts regularly and needs detailed reporting, it's worth the price.

If you're already in the Maze ecosystem: Use what you have. Maze's card sorting isn't best-in-class, but it might be good enough if you're already paying for their platform.

If budget is truly zero and you have time: Google Forms works. It's just going to take more effort on your end.

Further Reading

• What is Card Sorting? Complete Guide
• Card Sorting (UX Glossary)
• Information Architecture (UX Glossary)
• How To Run Your First Card Sort Study

Frequently Asked Questions

What is the best free card sorting tool in 2026?

It depends on what you need. CardSort gives you the most functionality without paying — unlimited studies and participants with built-in analytics. If you need advanced reporting and have budget, Optimal Workshop is the stronger research tool overall. For zero-cost DIY, Google Forms works but requires a lot of manual effort.

Are card sorting tools actually free?

Most of them aren't, at least not in a practical sense. Many tools advertise "free" access that turns out to be a short trial or a plan so restricted it's hard to run a real study. CardSort and Google Forms are the two options where you can genuinely keep using them without paying, though both have their own tradeoffs.

How many participants do you need for valid card sorting results?

The commonly cited range is 15-30 participants. With fewer than 15, the sorting patterns tend to be noisy and hard to interpret. More than 30 usually shows diminishing returns unless you're segmenting by user type. This is worth keeping in mind when evaluating free plans — if a tool caps you at 10 responses, you may not have enough data to make confident decisions.

Can you export data from free card sorting tools?

CardSort and Google Forms both let you export your data on the free tier. For trial-based tools like Optimal Workshop, you can export during the trial period but lose access afterward. It's always worth checking export options before you start a study — you don't want to collect great data and then find out you can't get it out.

What's the difference between open, closed, and hybrid card sorting?

In open card sorting, participants group cards and name the categories themselves. Closed card sorting gives them predefined categories to sort into. Hybrid is a mix — you provide some categories but participants can also create their own. Open sorts are great for discovery work when you're starting from scratch, while closed sorts help validate an existing structure. Most dedicated card sorting tools support all three types.