Quick answer: We compare all 7 internal tool builder tools we track, including Appsmith, Budibase and DronaHQ. Pricing ranges widely and 7 offer a free plan. Each is rated on entry price, core strengths and who it fits, with links to a full review and pricing breakdown.
Every internal tool builder tool we track, in one place: 7 options compared on entry price, strengths and who each one fits. For a curated shortlist by use case, see the guides linked below.
| Tool | Entry price | Best for |
|---|---|---|
| Appsmith | $0 | self-hosted |
| Budibase | $0 | self-hosted |
| DronaHQ | $0 | internal-tools |
| Jet Admin | $0 | internal-tools |
| Retool | $0 | internal-tools |
| ToolJet | $0 | self-hosted |
| UI Bakery | $0 | internal-tools |
Prices verified 2026-06-28 from public vendor pricing. Plans and prices change — always confirm on the vendor's own site. No price here is guaranteed.
Open-source (Apache 2.0) platform for building internal tools and admin panels you can self-host for free, connecting to databases and APIs with JS-extensible widgets.
Apache-2.0 open source you can self-host for free with no user cap.
More on Appsmith →Open-source low-code platform for internal apps, automations and AI agents, with a fully free self-hosted option and per-creator (not per-app) cloud pricing.
Open-source internal-tool platform with a free self-host option and per-creator (not per-app) pricing.
More on Budibase →Low-code platform for internal tools, admin panels, employee/partner portals and database GUIs, with flexible developer-only, user-based and usage-based licensing.
Flexible enterprise low-code with developer-only, user-based and usage-based pricing options.
See DronaHQ plans →No-code platform with separate tracks for internal tools, customer portals and AI agents, connecting 50+ data sources to build admin panels and portals.
One platform with distinct tracks for internal tools, customer portals and AI agents.
See Jet Admin plans →Market-leading platform for building internal tools, admin panels and workflows fast by connecting databases and APIs to a library of drag-and-drop components, with strong dev controls.
The market default for developers building internal tools fast on top of databases and APIs.
More on Retool →AI-native open-source low-code platform for building internal tools, dashboards and AI agents, connecting to 80+ data sources with self-hosting and no per-app fees.
AI-native open-source internal-tool builder with flat per-builder pricing and no per-app fees.
More on ToolJet →Low-code builder for internal tools, admin panels and dashboards with straightforward pricing that separates builders from viewers and offers unlimited apps and data sources even on lower tiers.
Predictable internal-tool pricing (builders vs viewers) with unlimited apps even on free.
More on UI Bakery →It depends on your priorities. This page compares all 7 internal tool builder tools we track on entry price, strengths and who each fits; Appsmith and Budibase are common starting points.
All 7 internal tool builder tools in our No-Code Builders category, side by side, with links to each tool's full review and pricing breakdown.