Best No-Code App Builders in 2026
Bubble remains the deepest general-purpose web app builder, FlutterFlow is the pick for real native mobile apps, and Glide and AppSheet turn a spreadsheet into an app in an afternoon. For internal tools and admin panels, Retool, Appsmith, Budibase and ToolJet connect straight to your database, with the last two fully open-source. Xano is the no-code backend to pair with any of them once your app needs real logic and a real database.
The visual platforms that let a non-developer ship a real, working app, not just a website or an automation.
Most "no-code" lists mix website builders, automation tools, and form builders together, which is not helpful if what you actually need is a working application with a database, user logins, and business logic behind it. Of the 10,000+ tools Toolradar tracks, 110 in the No-Code category offer a genuine free tier, but only a fraction of those are true app builders rather than site builders or workflow automators.
This guide is scoped tightly to platforms where a non-developer can build and run a functional web app, mobile app, internal tool, or backend, visually. We verified each tool's current free tier directly against its 2026 pricing page, checked whether the free plan can actually publish or only prototype, and dropped anything that has quietly killed or gutted its free offering. AI-assisted features are noted where relevant, but this is not an AI-app-builder roundup; every pick here is fundamentally a visual, drag-and-drop builder.
Top Picks
Picked by editorial review, informed by G2 and Capterra review volume and rating and by media mentions, the signals behind our category rankings. How we rate
| Tool | Starting price | Rating | Best for |
|---|---|---|---|
| Bubble | From $134/mo | 4.5 499 reviews | Founders and teams building a real SaaS product or marketplace without a dev team |
| FlutterFlow | From $5/mo | 4.4 114 reviews | Teams that need an actual app-store app, not a mobile-responsive website |
| Glide | From $199/mo | 4.7 820 reviews | Non-technical teams who already manage their data in a spreadsheet |
| AppSheet | From $5/mo | 4.4 960 reviews | Teams already in Google Workspace who need a permanently free prototyping tier |
| Xano | From $150/mo | 4.7 67 reviews | Builders pairing a Bubble, FlutterFlow, or WeWeb front end with a proper scalable backend |
| Retool | From $9/mo | 4.6 394 reviews | Engineering and ops teams building internal software fast on top of existing databases |
| Appsmith | Free plan | 4.6 67 reviews | Teams that want Retool-style internal tools with the option to self-host for free forever |
| Budibase | From $10/mo | 4.5 67 reviews | Technical teams that want a genuinely free, self-hosted internal-tool builder with no user cap |
| ToolJet | From $19/mo | 4.6 53 reviews | Teams wanting a modern, AI-assisted internal-tool builder with a genuinely free self-hosted option |
| WeWeb | From $16/mo | 4.8 59 reviews | Builders who want pixel-level design control over the front end while a separate backend handles data |
Founders and teams building a real SaaS product or marketplace without a dev team
- Pro: Free plan includes 50,000 workload units per month for building and testing
- Pro: Full visual workflow engine handles complex conditional logic, not just simple CRUD screens
- Pro: Massive plugin marketplace covers Stripe, Twilio, OpenAI and hundreds of other integrations
- Con: The free plan cannot launch a live, publicly accessible app; you need at least the $29/month Starter plan to publish
- Con: Workload-unit billing makes costs unpredictable once real traffic hits the app
Watch out
Workload unit overages at premium rates, exceeding your monthly allocation can spike costs unpredictably during traffic surges
Teams that need an actual app-store app, not a mobile-responsive website
- Pro: Free plan gives full access to the visual builder, 1,000+ templates, and up to two test projects
- Pro: Outputs genuine native Flutter code, so performance matches a hand-coded mobile app
- Pro: Direct integrations with Firebase and Supabase for auth and databases without custom code
- Con: Free plan cannot download code or build an installable app file, so shipping to app stores requires the $39/month Basic plan or higher
- Con: Free plan includes only 5 lifetime AI generation requests
FlutterFlow is the leading visual Flutter builder but pricing gets steep for teams.
Watch out
Firebase/Supabase backend costs are separate, Blaze plan required for production Firebase apps
Non-technical teams who already manage their data in a spreadsheet
- Pro: Free plan supports unlimited drafts, so you can fully build and test before paying anything
- Pro: Fastest path from an existing spreadsheet to a working mobile-friendly app on the market
- Pro: Built-in row-owner permissions make simple user-specific views easy without custom logic
- Con: The free plan cannot publish a live app, only build and preview it
- Con: Paid plans start around $19 to $25/month and bill by published apps, users, and monthly updates
Glide's pricing is fair for individuals and small teams, but can quickly become expensive for growing businesses.
Watch out
Storage limits could incur overage fees.
Teams already in Google Workspace who need a permanently free prototyping tier
- Pro: Free tier is permanent, not a trial, and supports up to 10 test users indefinitely
- Pro: Deep native integration with Google Sheets, Forms, and Workspace identity for auth
- Pro: Automation engine handles scheduled bots, push notifications, and workflow triggers
- Con: The 10-user cap on the free tier makes it unusable for any real production rollout
- Con: A public app for unlimited external users requires the separate $50/month Publisher Pro plan
AppSheet's pricing is generally fair, especially for small teams starting with the $5/user Starter plan.
Watch out
Publisher Pro's $50/app can add up quickly for multiple public apps.
Builders pairing a Bubble, FlutterFlow, or WeWeb front end with a proper scalable backend
- Pro: Free plan includes a full Postgres database with up to 100,000 records, no time limit
- Pro: Generates unlimited REST APIs visually, with the same data modeling power as writing SQL by hand
- Pro: 1 GB of free image storage and a genuine production-grade database engine, not a toy sandbox
- Con: Free plan is rate-limited to 10 requests per 20 seconds, too slow for any live app with real users
- Con: Paid plans start at $85/month, a meaningful jump for a backend-only tool
Xano's pricing is fair, offering a generous Free tier and a well-structured progression.
Engineering and ops teams building internal software fast on top of existing databases
- Pro: Free plan supports up to 5 users and unlimited web and native mobile apps
- Pro: Includes 500 workflow runs and 250 AI credits per month at no cost
- Pro: Connects directly to Postgres, MySQL, MongoDB, REST APIs, and dozens of other data sources out of the box
- Con: Free plan caps out fast for any team larger than 5, and paid seats run $10 to $65/builder/month
- Con: Closed-source and cloud-first; self-hosting requires an enterprise contract
Retool is the most polished internal tool builder but pricing escalates quickly.
Watch out
Workflow runs capped at 500/mo (Free) or 5,000/mo (Team), automation-heavy apps hit limits quickly
Teams that want Retool-style internal tools with the option to self-host for free forever
- Pro: Community Edition is fully open-source under Apache 2.0, self-hostable with unlimited users at zero license cost
- Pro: Drag-and-drop UI builder plus JavaScript escape hatches for anything the visual layer can't do
- Pro: Connects to Postgres, MongoDB, REST and GraphQL APIs, and most common databases natively
- Con: Cloud free plan caps out at 5 users before the $15/user/month Business tier kicks in
- Con: Self-hosting requires your own infrastructure and ops effort to patch and maintain
Appsmith's pricing is generally fair, offering a generous free tier for small teams.
Technical teams that want a genuinely free, self-hosted internal-tool builder with no user cap
- Pro: Self-hosted edition is free forever under GPLv3, with no per-seat or per-app license fee
- Pro: Built-in database plus connectors for Postgres, MySQL, MongoDB, Airtable, and REST APIs
- Pro: Automation engine handles scheduled jobs and multi-step workflows alongside the app itself
- Con: Budibase's cloud free tier is now limited to 5 users and roughly 200 monthly automation runs, down from earlier unlimited offers
- Con: Paid cloud plans start at $19/month and add per-creator and per-user charges on top
Budibase offers a very generous freemium model with its Open Source tier, providing significant functionality for free.
Teams wanting a modern, AI-assisted internal-tool builder with a genuinely free self-hosted option
- Pro: Cloud free plan is permanent, not a trial: 2 builders, 50 end users, 2 apps, and 100 AI credits per month
- Pro: Fully open-source community edition can be self-hosted for unlimited users at no license cost
- Pro: AI-assisted query and UI generation speeds up building tables, forms, and dashboards
- Con: AGPL licensing on the self-hosted edition means distributing a modified ToolJet as a product requires open-sourcing your changes
- Con: Cloud paid plans jump quickly, from $19/builder/month to $199/builder/month for the production-ready Team tier
Tooljet's pricing is quite generous, especially for individual developers and small teams.
Builders who want pixel-level design control over the front end while a separate backend handles data
- Pro: Free plan includes 1 million AI tokens, the full drag-and-drop editor, and free hosting for up to 500 sessions
- Pro: Splits development (workspace/seat) from hosting (site plan), so self-hosting on Cloudflare or Netlify avoids hosting fees entirely
- Pro: Imports coded components, giving more design flexibility than most no-code front-end tools
- Con: Free plan has no custom domain and carries WeWeb branding
- Con: Requires pairing with a separate backend tool, so it's not a complete solution on its own for non-technical builders
WeWeb uses a two-layer pricing model: seat plans (editor access) plus hosting plans (deployment).
Watch out
AI token limits: Free gets 1M AI tokens/month, Pro gets 10M. The tokens cover AI-assisted building features. Heavy AI usage during prototyping can exhaust monthly allocations, though most users report this is sufficient for normal use.
What Is a No-Code App Builder?
A no-code app builder is a platform where you assemble a working application, screens, data, logic, and (usually) a database, through a visual editor instead of writing code. That distinguishes it from a website builder (which outputs marketing pages, not app logic), a form builder (which collects data but doesn't run an application), and an automation tool like Zapier or Make (which connects existing apps but doesn't create a new one).
The category splits into a few real use cases: general web app builders (Bubble), native mobile app builders (FlutterFlow), spreadsheet-to-app tools (Glide, AppSheet), internal tool and admin panel builders (Retool, Appsmith, Budibase, ToolJet), and no-code backends that pair with a front-end builder (Xano). A serious no-code app usually combines two of these, for example a Bubble front end talking to an Xano backend, or Retool sitting on top of an existing Postgres database.
Why No-Code App Building Matters
Hiring a developer to build even a simple internal app, an inventory tracker, a client portal, a field-service form, routinely costs $15,000 to $50,000 and takes months. A no-code builder collapses that to days or weeks and lets the person who actually understands the workflow build it directly, without a requirements-gathering handoff.
The tradeoff is real: no-code apps hit ceilings on custom logic, performance at scale, and portability (Bubble and Glide apps are not easily moved off their platform). That is exactly why the open-source options in this list, Appsmith, Budibase, and ToolJet, matter: you get the same visual speed with an exit path if you outgrow the platform or need to self-host for compliance reasons.
Key Features to Look For
Real free tier that can publish (Essential)
Some free plans only let you build and test; they block publishing or app-store submission entirely. Know which kind you're getting before you invest weeks.
User authentication and roles (Essential)
Any app with more than one user needs logins, permissions, and role-based access built in or easy to add without custom code.
Mobile output (native vs. responsive web) (Important)
FlutterFlow compiles to real native iOS and Android apps; most other builders produce a responsive web app that behaves like an app but isn't in the App Store.
Workload or usage-based pricing model (Nice to have)
Bubble bills by workload units, AppSheet by seat, Glide by published apps and updates. Understand the billing unit before you scale past the free plan, since costs can jump fast.
Mistakes to Avoid
- ×
Assuming 'free plan' means you can launch a live app. Bubble, FlutterFlow, and Glide all restrict their free tiers to building and testing; publishing requires a paid plan.
- ×
Picking a spreadsheet-to-app tool like Glide or AppSheet for an app that needs complex relational data or heavy custom logic, then hitting a wall.
- ×
- ×
Building a mobile-first product in a web-only builder, then discovering it can only ship a responsive website, not a real App Store or Play Store listing.
- ×
Expert Tips
- →
- →
If you're not sure the app idea will stick, build the whole thing on a free tier first, even if that means only prototyping. Every platform in this list lets you validate the full data model and flows before paying.
- →
- →
Read the free-plan fine print for publishing rights, not just feature lists. 'Free' and 'free to launch' are two different claims on nearly every builder in this category.
- →
The Bottom Line
There is no single best no-code app builder, only the right one for your data source and output. Bubble wins for general web apps with complex logic, FlutterFlow for real native mobile apps, and Retool, Appsmith, or Budibase for internal tools depending on whether you want cloud convenience or free self-hosting. Of the 10,000+ tools Toolradar tracks, 110 in the No-Code category offer a genuine free tier, and every pick here lets you build and validate a real app before paying a cent.
Frequently Asked Questions
What is the best free no-code app builder?
It depends on what you're building. For a general web app, Bubble's free plan lets you build and test with 50,000 workload units a month. For a mobile-first app, FlutterFlow's free tier gives full builder access. For internal tools, Appsmith and Budibase are genuinely free forever when self-hosted, since both are open-source under permissive or copyleft licenses.
Can I actually launch a live app on a free no-code plan?
On most consumer-facing builders, no. Bubble, FlutterFlow, and Glide all restrict their free tiers to building and testing, and require a paid plan to publish. AppSheet is the exception: its free tier is a permanent production plan capped at 10 users. For internal tools, self-hosted Appsmith, Budibase, and ToolJet can run in production for free indefinitely.
What is the difference between a no-code app builder and a website builder like Webflow?
A website builder like Webflow outputs marketing pages and content sites with minimal interactive logic. A no-code app builder like Bubble, FlutterFlow, or Retool creates a functioning application with a database, user accounts, permissions, and business logic behind the screens. The two categories overlap in visual editing but solve different problems.
Which no-code app builder is best for building a mobile app?
FlutterFlow is the strongest choice for a real native app, since it compiles to genuine Flutter code for iOS and Android rather than wrapping a responsive website. Glide and AppSheet build mobile-friendly apps from a spreadsheet quickly but produce web apps that behave like native apps rather than true App Store listings.
Is Xano a no-code app builder or something else?
Cite this page: Toolradar, "Best No-Code App Builders in 2026", updated August 2026, https://toolradar.com/guides/best-no-code-app-builders
Sources
Prices and plan details on this page come from each vendor's own pricing page, re-checked by the Toolradar pricing tracker:
- Bubble pricing, checked
- FlutterFlow pricing, checked
- Glide pricing, checked
- AppSheet pricing, checked
- Xano pricing, checked
- Retool pricing, checked
- Appsmith pricing, checked
- Budibase pricing, checked
- ToolJet pricing, checked
- WeWeb pricing, checked
Related Guides
Some offers on this page may be paid placements or contain affiliate links.