CuriousCat Alternatives: Anonymous Q&A Platforms in 2026

CuriousCat was one of the internet's most popular anonymous Q&A platforms for years. Creators, fan communities, and everyday users relied on it to receive anonymous questions and interact with their audiences. Then it shut down.

The closure left millions of users scrambling for alternatives. If you're one of them -- or if you're just exploring the anonymous Q&A landscape for the first time -- this guide covers the best options available in 2026.

What Made CuriousCat Popular

CuriousCat succeeded because it was simple. You created a profile, shared a link, and people sent you anonymous questions. No complicated setup, no app required for questioners, and a clean interface that worked well with Twitter (now X) integration.

The platform built a dedicated user base in fan communities, artist circles, and among content creators who wanted to engage with followers on a more personal level.

Why CuriousCat Shut Down

CuriousCat experienced service disruptions and eventual shutdown. Users reported being unable to access their profiles, losing their question archives, and receiving no official communication about the closure. The abrupt nature of the shutdown underscored a painful lesson: when a free platform controls your data, you're at the mercy of its business decisions.

Best CuriousCat Alternatives

1. Retrospring

Type: Open-source anonymous Q&A platform

Retrospring is the closest spiritual successor to CuriousCat. It's open-source, community-driven, and offers a similar profile-based Q&A experience. Users can receive anonymous questions, respond publicly, and build a timeline of answers.

Pros	Cons
Open-source and transparent	Smaller community than CuriousCat had
Free to use	Interface feels dated
Profile-based Q&A	No built-in expiration for Q&A sessions
Community-moderated	Requires account creation for both parties

Best for: CuriousCat loyalists who want the most similar experience.

2. Marshmallow (Mashtallow)

Type: Anonymous Q&A with AI filtering

Marshmallow (known as Marshmallow in Japan, popular as マシュマロ) offers anonymous messaging with a twist: it uses AI to filter out negative or harmful messages before they reach you. This makes it popular among creators who want anonymous interaction without the toxicity.

Pros	Cons
AI-based negativity filtering	Primarily designed for Japanese users
Clean, modern interface	English support is limited
Good Twitter/X integration	AI filtering may block legitimate questions
Free tier available	Requires account to receive messages

Best for: Creators who want built-in content moderation and are comfortable with the Japan-centric ecosystem.

3. LOCK.PUB Ask Board

Type: Browser-based anonymous question board with privacy controls

LOCK.PUB takes a different approach from traditional profile-based Q&A platforms. Instead of creating a permanent profile, you create individual question boards -- each with its own link, optional password, and expiration date.

Pros	Cons
No app download for anyone	No permanent profile page
Password protection option	Newer platform
Expiration dates for boards	No built-in social timeline
Works on any platform	Board-based, not profile-based
No account needed to submit

Best for: Users who want disposable, privacy-first Q&A boards they can create for specific events or time periods.

4. ASKfm

Type: Social Q&A network

ASKfm has been around since 2010 and operates as a full social network built around questions and answers. It has a large existing user base and mobile apps for iOS and Android.

Pros	Cons
Large established user base	Heavy advertising
Mobile apps available	Privacy concerns in the past
Discover/explore features	Requires app for full experience
Like and share functionality	Aimed at younger demographics

Best for: Users who want a social network experience, not just a Q&A tool.

Comparison Table: All CuriousCat Alternatives

Feature	Retrospring	Marshmallow	LOCK.PUB	ASKfm
Anonymous questions	Yes	Yes	Yes	Yes
No app needed	Yes (web)	Yes (web)	Yes (web)	No (app preferred)
Password-protected boards	No	No	Yes	No
Expiration dates	No	No	Yes	No
Open source	Yes	No	No	No
AI content filtering	No	Yes	No	No
Profile-based	Yes	Yes	No (board-based)	Yes
Free	Yes	Yes	Yes	Yes (with ads)

How to Choose the Right Alternative

If you want a CuriousCat clone...

Go with Retrospring. It's the most similar experience -- profile page, anonymous questions, public answers. The open-source nature means the community can keep it alive even if the original developers move on.

If you want content moderation built in...

Try Marshmallow. The AI filtering removes a lot of the toxicity that plagues anonymous platforms. Just be aware that it may also filter out some legitimate but edgy questions.

If you want privacy and control...

LOCK.PUB is your best bet. The board-based model means you create a fresh Q&A space for each use case -- a 24-hour "ask me anything" session, a private feedback board for your team, or a week-long fan Q&A. Each board can be password-protected and will self-destruct after its expiration date.

If you want a social network...

ASKfm offers the full social experience with discovery features, follower systems, and engagement mechanics. It's more than just Q&A -- it's a platform.

Setting Up Your First Anonymous Q&A Board

If you want to get started quickly without creating profiles or downloading apps, here's how to set up a LOCK.PUB Ask Board in under a minute:

1. Visit lock.pub and click "Ask Board"
2. Write a title or prompt (e.g., "Ask me anything about photography")
3. Optionally set a password for private boards
4. Choose an expiration (24 hours, 7 days, 30 days)
5. Share the generated link on your social media, in group chats, or wherever your audience is

That's it. No email verification, no profile setup, no app downloads for your respondents.

Lessons from the CuriousCat Shutdown

The CuriousCat closure taught us a few things:

• Export your data regularly. If a platform offers data export, use it. Don't wait until it's too late.
• Don't rely on a single platform. Cross-post your best Q&A answers to your own blog or social media.
• Consider disposable tools. Platforms like LOCK.PUB that create temporary, self-expiring boards mean you're never at risk of losing years of content to a sudden shutdown.
• Open source matters. Retrospring's open-source model means the community can fork and maintain it even if the original team stops.

Final Thoughts

The anonymous Q&A space is more fragmented than it was during CuriousCat's peak, but that's not necessarily a bad thing. More options mean more competition, and more competition means better tools for users.

Whether you choose the familiar profile-based approach of Retrospring, the AI-filtered experience of Marshmallow, or the privacy-first disposable boards of LOCK.PUB, the key is finding a tool that matches how you actually want to interact with your audience.

The age of relying on a single anonymous Q&A platform is over. Pick the tool that fits your needs, and don't put all your questions in one basket.