Retool alternatives

3 mapped open-source alternatives. Fit is not feature parity.

Open-source alternatives

Appsmith
C Apache License 2.0 A permissive license whose main conditions require preservation of copyright and license notices. Contributors provide an express grant of patent rights. Licensed works, modifications, and larger works may be distributed under different terms and without source code. May Commercial useModificationDistributionPatent usePrivate use Must License and copyright noticeState changes No Trademark useLiabilityWarranty Summary from GitHub's choosealicense.com

Rebuild Retool screens, queries and access rules against supported data sources. Validate connector coverage and workflow/edition gates before migration. No verified direct Retool app import.
Budibase
C GNU General Public License v3.0 Permissions of this strong copyleft license are conditioned on making available complete source code of licensed works and modifications, which include larger works using a licensed work, under the same license. Copyright and license notices must be preserved. Contributors provide an express grant of patent rights. May Commercial useModificationDistributionPatent usePrivate use Must License and copyright noticeState changesDisclose sourceSame license No LiabilityWarranty Summary from GitHub's choosealicense.com

Rebuild Retool screens, queries and access rules against supported data sources. Validate connector coverage and workflow/edition gates before migration. No verified direct Retool app import.
ToolJet
C GNU Affero General Public License v3.0 Permissions of this strongest copyleft license are conditioned on making available complete source code of licensed works and modifications, which include larger works using a licensed work, under the same license. Copyright and license notices must be preserved. Contributors provide an express grant of patent rights. When a modified version is used to provide a service over a network, the complete source code of the modified version must be made available. May Commercial useModificationDistributionPatent usePrivate use Must License and copyright noticeState changesDisclose sourceNetwork use is distributionSame license No LiabilityWarranty Summary from GitHub's choosealicense.com

Rebuild Retool screens, queries and access rules against supported data sources. Validate connector coverage and workflow/edition gates before migration. No verified direct Retool app import.

Retool today

Entry priceUSD 10 / seat / month

Pricing modelmixed, billed annual

OwnerRetool, Inc.

Team: $10/builder/month and $5/internal user/month, billed annually; free plan for up to five users. Usage and higher tiers differ. Source

Plans reviewed
Team	USD 120 / builder / yr
Business	USD 600 / builder / yr
Enterprise	Quote only

What you would need to replace

Compose operational app interfaces from ready components connected to live databases and APIs.
Build backend workflows and AI actions that use the same business data connections.
Create native mobile operational tools alongside browser apps for field workflows.

Apps, queries, credentials and organization permissions embedded in day-to-day operations create switching costs; visual builders themselves are readily competed.

Editorial assessments from the linked sources, not measured outcomes.

Category: Internal tools and low-code apps

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Open-source alternatives

Appsmith

Budibase

ToolJet

One SaaS, its open-source alternatives, once a week