Catch every mistake before you go live.
Test Mode lets you build and break things safely — with fake members and sandbox payments. And the in-browser inspector now triages your whole setup: it points at the exact bad value, suggests the fix, and tracks your go-live readiness as you click through your Webflow site.
Every app starts in Test Mode — free until you launch.
Go-live readiness
Signup form connected — 2 plans detected
Price ID prc_basic not found.
Did you mean prc_basic_monthly?
Gated content verified on 4 pages
Ask Rey how to fix this
An inspector that does the debugging for you
Open your site in Test Mode and the in-browser inspector audits your Memberstack setup where it actually runs.
Go-live readiness checklist
The new Overview tab triages your setup at a glance and tracks findings across pages as you navigate — so you know exactly what's left before launch.
Diagnostics that name the fix
The inspector points at the exact bad value: it suggests valid plan and price IDs, flags custom-field key typos with a “did you mean…”, and reality-checks your gating.
SDK Methods Explorer
A searchable list of every SDK method with copy-paste snippets and open-in-Playground links. Custom-code sites get this instead of an empty inspector.
Ask Rey handoff
Turn any finding into AI guidance in one click — with SDK-aware tips and per-method Playground links, so the fix is never a docs hunt away.
Safe sandbox testing
Test signups, logins, and payments with test members and test transactions — test and live mode are fully separate environments, so nothing touches your real members.
Renders right on any site
Refreshed theming with dark mode, cleaner badge, and animations — and the inspector is isolated from your site's CSS so it looks right everywhere.
From sandbox to launch day
Test Mode is how confident launches happen.
Build in Test Mode
Every Memberstack app starts in Test Mode. Sign up test members, run test payments, and break things freely — test mode is a separate environment from your live members.
Browse your site with the inspector
Open your Webflow site and the inspector rides along, auditing forms, plans, gating, and attributes on every page you visit.
Fix what it finds
Each finding names the exact value to change and suggests the fix — or hand it to Rey for AI guidance with copy-paste snippets.
Flip to live
When the readiness checklist is green, switch to Live Mode and launch with real members and real payments — no surprises.
Loved by builders everywhere
From Webflow designers to AI-native founders — see why thousands choose Memberstack to power their memberships.
Great service - I am very impressed by how easy it is to integrate their service into an existing site.
Steve Coleman (scole)
co-founder
This is a huge leap forward to the no-code movement. Eager to see it grow. Duncan is on to something really huge... I said it first.
Tayler Freund
UI UX Designer @ Pixel
Memberstack made Webflow twice as valuable for me. The docs for using Memberstack are extremely well done. Setting up Memberstack is so smooth.
Thomas Boosinger
CEO at MyAIScholar
Awesome service by the Memberstack team. I recently implemented my first site with paid memberships and gated content - Super easy.
Tim Daff
Website Designer
I love Memberstack and use it regularly. It's an amazing product, thank you so much :)
Tony Maguire
getstreak.com
Great site , Easy to navigate , Good customer service - The site is easy to navigate and customer service is knowledgable and quick to respond.
Tracy Schneider
Owner, MySpaList
For me I have used Memberstack for more than 4 client projects and the reason is because of the community behind it.
Tsaaid
Freelance software engineer
Wow, shoutout @MemberstackApp for some truly accommodating, generous, awesome customer service.
Dan Pierson
I'm amazed at what you folks have created. Awesome product, great customer experience...and with a small team. Keep up the great work!
Keith
Thanks for your help and your amazing product! You have a good impact on the no-code industry :)
Gabriel Amzallag
Memberstack has allowed us to think outside the box with our website and with our business.
Sam Naus
Designer & Visual Artist.
Good software to manage user accounts. From their Integrations, to their support team, an pricing.
Saurabh Singh
Talent Acquisition
Great service - I am very impressed by how easy it is to integrate their service into an existing site.
Steve Coleman (scole)
co-founder
This is a huge leap forward to the no-code movement. Eager to see it grow. Duncan is on to something really huge... I said it first.
Tayler Freund
UI UX Designer @ Pixel
Memberstack made Webflow twice as valuable for me. The docs for using Memberstack are extremely well done. Setting up Memberstack is so smooth.
Thomas Boosinger
CEO at MyAIScholar
Awesome service by the Memberstack team. I recently implemented my first site with paid memberships and gated content - Super easy.
Tim Daff
Website Designer
I love Memberstack and use it regularly. It's an amazing product, thank you so much :)
Tony Maguire
getstreak.com
Great site , Easy to navigate , Good customer service - The site is easy to navigate and customer service is knowledgable and quick to respond.
Tracy Schneider
Owner, MySpaList
For me I have used Memberstack for more than 4 client projects and the reason is because of the community behind it.
Tsaaid
Freelance software engineer
Wow, shoutout @MemberstackApp for some truly accommodating, generous, awesome customer service.
Dan Pierson
I'm amazed at what you folks have created. Awesome product, great customer experience...and with a small team. Keep up the great work!
Keith
Thanks for your help and your amazing product! You have a good impact on the no-code industry :)
Gabriel Amzallag
Memberstack has allowed us to think outside the box with our website and with our business.
Sam Naus
Designer & Visual Artist.
Good software to manage user accounts. From their Integrations, to their support team, an pricing.
Saurabh Singh
Talent Acquisition
Great service - I am very impressed by how easy it is to integrate their service into an existing site.
Steve Coleman (scole)
co-founder
This is a huge leap forward to the no-code movement. Eager to see it grow. Duncan is on to something really huge... I said it first.
Tayler Freund
UI UX Designer @ Pixel
Memberstack made Webflow twice as valuable for me. The docs for using Memberstack are extremely well done. Setting up Memberstack is so smooth.
Thomas Boosinger
CEO at MyAIScholar
Awesome service by the Memberstack team. I recently implemented my first site with paid memberships and gated content - Super easy.
Tim Daff
Website Designer
I love Memberstack and use it regularly. It's an amazing product, thank you so much :)
Tony Maguire
getstreak.com
Great site , Easy to navigate , Good customer service - The site is easy to navigate and customer service is knowledgable and quick to respond.
Tracy Schneider
Owner, MySpaList
For me I have used Memberstack for more than 4 client projects and the reason is because of the community behind it.
Tsaaid
Freelance software engineer
Wow, shoutout @MemberstackApp for some truly accommodating, generous, awesome customer service.
Dan Pierson
I'm amazed at what you folks have created. Awesome product, great customer experience...and with a small team. Keep up the great work!
Keith
Thanks for your help and your amazing product! You have a good impact on the no-code industry :)
Gabriel Amzallag
Memberstack has allowed us to think outside the box with our website and with our business.
Sam Naus
Designer & Visual Artist.
Good software to manage user accounts. From their Integrations, to their support team, an pricing.
Saurabh Singh
Talent Acquisition
Got questions? We've got answers
Everything you need to know about Memberstack. Can't find what you're looking for? Reach out to our team.
Still have questions?
Launch with confidence.
Break things in the sandbox, let the inspector catch what you missed, and flip to live when the checklist is green.