The Best Retool Alternatives in 2026
Tolodora Editorial Team
Independent software reviews for founders and small businesses.
Quick answer
The best Retool alternatives in 2026 are Appsmith, Budibase and ToolJet. Appsmith is our top overall pick, best for teams that want Retool's power without the per-seat bill. See the full ranked comparison below.
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Retool made building internal tools fast, and it's genuinely good at it. The two things that send teams looking are familiar: per-user pricing that adds up as more of the company needs access, and the discomfort of having critical internal apps locked inside a closed platform. The great news is that the best Retool alternatives are mostly open-source — you can self-host them, pay no per-user fees, and own your tools outright.
Here are six Retool alternatives worth a look in 2026, ranked on value, features, ease of use and support. Most are open-source and self-hostable; a couple lean more polished or enterprise. More in dev tools.
Prices below are each tool's published 2026 pricing (several are free to self-host), but low-code platforms reprice often, so check the current figure for your team size before you commit. Ratings are our own editorial calls to help you compare.
| Tool | Starts at | Free plan | Best for |
|---|---|---|---|
| Appsmith | Free (open source); cloud paid tiers | Yes (self-host) | Teams that want Retool's power without the per-seat bill |
| Budibase | Free (open source); paid tiers | Yes (self-host) | Teams that want to build internal apps quickly, data included |
| ToolJet | Free (open source); paid tiers | Yes (self-host) | Teams wanting a slick open-source builder with lots of integrations |
| Windmill | Free (open source); paid tiers | Yes (self-host) | Developer teams who think in scripts and workflows |
| UI Bakery | Free; paid plans available | Yes | Teams wanting a slick, approachable hosted builder |
| Superblocks | Free; custom enterprise pricing | Yes | Larger organizations with security and governance needs |
| Tool | Value | Support | Ease of use | Features | Overall | Best for |
|---|---|---|---|---|---|---|
| Appsmith | 9.0 | 7.0 | 8.0 | 9.0 | 8.3 | Teams that want Retool's power without the per-seat bill |
| Budibase | 9.0 | 8.0 | 8.0 | 8.0 | 8.3 | Teams that want to build internal apps quickly, data included |
| ToolJet | 9.0 | 8.0 | 8.0 | 8.0 | 8.3 | Teams wanting a slick open-source builder with lots of integrations |
| Windmill | 9.0 | 7.0 | 7.0 | 9.0 | 8.0 | Developer teams who think in scripts and workflows |
| UI Bakery | 7.0 | 8.0 | 9.0 | 8.0 | 8.0 | Teams wanting a slick, approachable hosted builder |
| Superblocks | 6.0 | 8.0 | 8.0 | 9.0 | 7.8 | Larger organizations with security and governance needs |
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| # | Tool | Best for | Rating |
|---|---|---|---|
| 1 | Appsmith | Teams that want Retool's power without the per-seat bill | 4.1/5 |
| 2 | Budibase | Teams that want to build internal apps quickly, data included | 4.1/5 |
| 3 | ToolJet | Teams wanting a slick open-source builder with lots of integrations | 4.1/5 |
| 4 | Windmill | Developer teams who think in scripts and workflows | 4.0/5 |
| 5 | UI Bakery | Teams wanting a slick, approachable hosted builder | 4.0/5 |
| 6 | Superblocks | Larger organizations with security and governance needs | 3.9/5 |
Appsmith
- Pricing
- 9.0/10
- Functionality
- 9.0/10
- Ease of use
- 8.0/10
- Support
- 7.0/10
What I like
The leading open-source Retool — self-host it, pay no per-user fees, build anything.
Best for
Teams that want Retool's power without the per-seat bill
Appsmith is the most popular open-source answer to Retool, and for a lot of teams it's the obvious switch. It gives you the same drag-and-drop UI builder, connects to just about any database or API, and lets you wire up logic with JavaScript — everything you'd expect for building dashboards, admin panels and internal tools. The difference is you can self-host it for free with no per-user fees, which transforms the economics once your whole team needs access. There's a managed cloud too. It's a touch less polished than Retool in places. But for teams who want Retool-class capability and to own their tools without per-seat pricing, Appsmith leads.
Budibase
- Pricing
- 9.0/10
- Functionality
- 8.0/10
- Ease of use
- 8.0/10
- Support
- 8.0/10
What I like
Fast, open-source internal apps with a built-in database if you don't have one.
Best for
Teams that want to build internal apps quickly, data included
Budibase is the open-source internal-tools builder that's especially nice when you don't already have a database to point at — it includes its own built-in data layer, so you can spin up a working app (with forms, tables and automations) remarkably fast. It also connects to external databases and APIs like the others. It's self-hostable for free with no per-user fees, plus paid cloud tiers. The experience is clean and quick, geared toward getting useful apps live without fuss. It's a little less developer-deep than Appsmith for heavy custom logic. But for teams that want to build internal apps fast — with or without an existing database — Budibase is a lovely, affordable Retool alternative.
ToolJet
- Pricing
- 9.0/10
- Functionality
- 8.0/10
- Ease of use
- 8.0/10
- Support
- 8.0/10
What I like
A polished open-source builder with a big library of connectors and components.
Best for
Teams wanting a slick open-source builder with lots of integrations
ToolJet is a slick, fast-growing open-source alternative that often feels the closest to Retool's polish. It has a visual app builder, a large library of components and data connectors (databases, APIs, SaaS tools), and supports custom JavaScript and even running code for logic. Like the others it's self-hostable for free with no per-user fees, with paid cloud and enterprise tiers available. It's invested heavily in developer experience and keeps shipping, so the gap with Retool on usability is small and shrinking. For teams that want an open-source builder that feels genuinely modern and well-connected — without Retool's per-seat pricing — ToolJet is an excellent, increasingly popular choice.
Windmill
- Pricing
- 9.0/10
- Functionality
- 9.0/10
- Ease of use
- 7.0/10
- Support
- 7.0/10
What I like
Turn scripts into UIs and workflows — a developer-first, open-source powerhouse.
Best for
Developer teams who think in scripts and workflows
Windmill is the developer-first pick, and it comes at internal tools from a code angle. You write scripts in Python, TypeScript, Go or Bash, and Windmill auto-generates UIs and workflows around them — so it's part internal-tools builder, part workflow engine, part job scheduler. For engineering teams that would rather write a function than drag a widget, that's genuinely powerful, and it's open-source and self-hostable for free with no per-user fees. It's less of a point-and-click tool for non-developers than Budibase. But for developer teams who want to turn their scripts into shared tools and automations fast, with full ownership and no per-seat cost, Windmill is superb.
UI Bakery
- Pricing
- 7.0/10
- Functionality
- 8.0/10
- Ease of use
- 9.0/10
- Support
- 8.0/10
What I like
A polished, low-code builder that's especially friendly for less technical users.
Best for
Teams wanting a slick, approachable hosted builder
UI Bakery is the pick if you want something polished and approachable without necessarily self-hosting. It's a low-code internal-tools builder with a clean, friendly interface, plenty of pre-built components and connectors, and AI-assisted building to speed things up — aimed at letting less technical team members build useful tools too. It's a hosted platform (with a free tier and paid plans) rather than an open-source project, so it trades self-hosting freedom for convenience and a smoother out-of-the-box experience. It's less of an own-everything play than the open-source options. But for teams that value ease of use and a slick hosted experience over self-hosting, UI Bakery is a strong, user-friendly Retool alternative.
Superblocks
- Pricing
- 6.0/10
- Functionality
- 9.0/10
- Ease of use
- 8.0/10
- Support
- 8.0/10
What I like
Enterprise-grade internal tooling with strong governance, security and AI building.
Best for
Larger organizations with security and governance needs
Superblocks is aimed at the enterprise end, and it's the pick when governance and security matter as much as speed. It's a low-code platform for building internal apps and workflows with the controls bigger organizations need — granular permissions, audit logs, on-prem/agent options to keep data in your network, and AI-assisted building. It connects to your databases and APIs like the rest. Pricing has a free tier with custom enterprise plans above it. It's more than a small team needs, and it's less about open-source ownership than robust enterprise control. But for larger organizations that want to empower teams to build internal tools safely, with proper governance, Superblocks is built for exactly that.
The verdict
For most teams the best Retool alternative is Appsmith — the leading open-source builder you can self-host with no per-user fees. Budibase is great when you want a built-in database too, ToolJet is the slickest open-source option, and Windmill is the developer-first, script-to-UI powerhouse. Prefer a polished hosted tool? UI Bakery is friendly and approachable, and Superblocks is the enterprise choice with serious governance.
Whatever you shortlist, run your real work through it for a week before committing — the right tool is the one that quietly disappears and lets you get back to it. And if you build software like this yourself, you can list it on Tolodora free.
Frequently asked questions
What's the best open-source alternative to Retool?
Appsmith is the most popular, with ToolJet and Budibase close behind — all three are open-source, self-hostable for free with no per-user fees, and cover the core internal-tools jobs (UI builder, data connectors, logic). Windmill is the best open-source pick for developer teams who prefer writing scripts. Any of these removes Retool's per-seat pricing.
Why do teams switch away from Retool?
Mainly per-user pricing that adds up as more of the company needs access, and wanting to own their internal tools rather than keep them in a closed platform. The open-source alternatives (Appsmith, Budibase, ToolJet, Windmill) solve both — self-host for free with no per-seat cost and full ownership of your apps and data.
Which alternative is easiest for non-developers?
Budibase and UI Bakery are the most approachable for less technical users, with clean interfaces and quick setup (UI Bakery adds AI-assisted building). Appsmith and ToolJet are also fairly friendly. Windmill is the most developer-oriented, since it's built around writing scripts, so it's less suited to non-coders.
Can I self-host these to avoid per-user fees?
Yes — Appsmith, Budibase, ToolJet and Windmill are all open-source and self-hostable at no licensing cost, which eliminates Retool's per-seat pricing entirely (you just pay for the server). UI Bakery and Superblocks are hosted platforms, so they're more about convenience and enterprise features than self-hosting.
Which Retool alternative is best for enterprise?
Superblocks is purpose-built for enterprise, with granular permissions, audit logs, on-prem/agent deployment and governance controls. Appsmith and ToolJet also offer enterprise editions with SSO and advanced controls if you want open-source roots plus enterprise features. For heavy governance and security requirements, Superblocks is the most tailored.
Sources & further reading
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